Srijaroen Palm Oil Wastewater Treatment CDM Monitoring Report

Project in Krabi Province, Thailand

Page 1 of 40

Report Version 1.1: June 22, 2010 

# CDM Monitoring Report

Srijaroen Palm Oil Wastewater Treatment Project

in Krabi Province, Thailand

UNFCCC Project Registered No. 2620

Monitoring Report No. 01 (Version 1.1)

Monitoring Period

16 October 2009

– 30 April 2010



## Project Participants

Srijaroen Palm Oil Co., Ltd

Mitsubishi UFJ Securities Co., Ltd



## Report Prepared by

Carbon Partners AsiaticaSrijaroen Palm Oil Wastewater Treatment CDM Monitoring Report

Project in Krabi Province, Thailand

Page 2 of 40

Report Version 1.1: June 22, 2010 

# Contents

Titles Pages

1. Project Description 4

1.1 Project Information 4

1.2 Description of the Project Activity 4

1.3 Status of Project Implementation 5

2. CER Calculation Methodology 6

2.1 Project Boundary 6

2.2 Calculation methodology 7

3. Monitoring Plan 9

3.1 CDM Working Team and Monitoring System 9

3.2 Monitoring Equipments 10

3.3 Monitored Parameters 14

3.4 Quality Control / Quality Assurance

3.4.1 Equipment Calibration 17

17

4. Delivered Emission Reduction 21

4.1 Fixed values 21

4.2 CDM Monitored Data (with correction) 22

4.3 Calculation of Emission Reduction 28

4.4 Summary of Emission Reduction 33

5. Comparison of the actual CERs claimed in the monitoring period

with the estimated in the registered PDD 33

Appendix I: Unit conversion of biogas stream

– from volume to mass

flow rate 35Srijaroen Palm Oil Wastewater Treatment CDM Monitoring Report

Project in Krabi Province, Thailand

Page 3 of 40

Report Version 1.1: June 22, 2010 

# Tables

Titles Pages

1. Summary of monitoring equipments installed 10

2. Summary of monitored parameters 14

3. Summary of quality control and assurance of monitoring equipment 17

4. Summary of monitoring parameters measured by accredited outsource

laboratory 20

5. Summary of fixed parameters used in calculation 21

6. Monitored quantities of biogas generation and utilization in project

activity (aggregated to monthly) 22

7. Monitored properties of biogas generation and utilization in project

activity (aggregated to monthly) 23

8. Monitored properties of biogas generation and utilization in project

activity (aggregated to monthly), continued 24

9. Monitored quantities and properties of wastewater in project activity

(aggregated to monthly) 25

10. Monitored quantities and properties of wastewater sludge removed

(aggregated to monthly) 26

11. Monitored amount of electricity displaced to grid and consumed in

biogas facilities (aggregated to monthly) 27

12. Emission reductions from wastewater treatment component in project

activity 31

13. Emission reductions from power generation component in the project

activity 32

14. Summary results of emission reductions from project activity 33



# Figures

Titles Pages

1. Schematic diagram of project boundary 6

2. CDM Organization Chart 9

3. Monitoring equipment location 12

4. Locations of electricity meters 13Srijaroen Palm Oil Wastewater Treatment CDM Monitoring Report

Project in Krabi Province, Thailand

Page 4 of 40

Report Version 1.1: June 22, 2010 

# CDM Monitoring Report

Srijaroen Palm Oil Wastewater Treatment Project in Krabi Province, Thailand (the “Project”)

This report is prepared for the purpose of verification and certification of Certified Emission Reductions

(CERs) resulting from project activity “Srijaroen Palm Oil Wastewater Treatment Project in Krabi

Province, Thailand” under the Clean Development Mechanism (CDM). In line with the CDM rules, this

Monitoring Report forms a core part of the documents to be submitted to meet the requirement of

project verification.

1. 

### Project Description

1.1. Project Information

Project Title: Srijaroen Palm Oil Wastewater Treatment Project

in Krabi Province, Thailand

Project Reference number: 2620

Registration Date: October 16, 2009

Crediting period: October 16, 2009 to October 15, 2019

Project Participants: Srijaroen Palm Oil Co., Ltd, and

Mitsubishi UFJ Securities Co., Ltd

CERs Monitoring Period: October 16, 2009 to April 30, 2010

Methodology (ies) Applied: AMS

‐ III.H version 9 and AMS

‐ I.D version 13

1.2. Description of the Project Activity

Project Objective

Srijaroen Palm Oil Co., Ltd. (Srijaroen) is a manufacturer of Crude Palm Oil (CPO) and Crude Palm

Kernel Oil (CPKO) in Krabi Province, in the Southern region of Thailand. The palm oil milling process

produces a large amount of Palm Oil Mill Effluent (POME), a high organic content wastewater,

which not only affects the local environment when treated in anaerobic open lagoons, it also

releases methane, a potent greenhouse gas (GHG).

To reduce GHG emissions and alleviate other environmental issues (e.g. odor from rotting organic

wastewater), a new anaerobic digestion and methane recovery system, coupled with an electricity

generation system have been implemented as the CDM Project. Under the previous system, POME

was treated in the anaerobic open lagoons, from which methane was freely emitted into the

atmosphere.

Project Activity

The Project involves the installation and operation of an anaerobic digester to treat POME and

recovery of methane generated from the treatment process. The captured methane is utilized as

fuel for power generation. Electricity generated from the Project is first used to meet internalSrijaroen Palm Oil Wastewater Treatment CDM Monitoring Report

Project in Krabi Province, Thailand

Page 5 of 40

Report Version 1.1: June 22, 2010 power demand of the wastewater treatment plant; the remaining is exported to the grid under a

power purchase agreement (PPA) with the Provincial Electricity Authority (PEA).

The Project reduces GHG emissions to the atmosphere through two activities. The first is the

avoidance of methane that would have been emitted from the open lagoons, and the second is the

replacement of carbon intensive grid electricity, with electricity generated from methane captured

from a newly implemented anaerobic digester.

1.3. Status of Project Implementation

Project Implementation

The Project successfully implemented and operated a new wastewater treatment and biogas

recovery and utilization system using the Modified Covered Lagoon Digester. As stated in the PDD,

the Project planned to install up to 3 MW of power generation capacity. For the first 1MW, the

PPA was signed with the PEA in June 2008. The genset was installed and a test run was carried out

on October 16, 2009. Srijaroen then started to export electricity to PEA grid on October 21, 2009

(the commercial operation date of the first 1MW genset). Another 1MW genset has recently been

installed to increase power generation capacity (i.e. totaling 2MWe). Srijaroen is in the process of

obtaining the PPA for the second 1MW genset and expects to start exporting electricity to the grid

from the second 1MW genset in August 2010. However, as this monitoring report covers activities

up to 30 April 2010, the total export electricity to the grid from combined 2

‐ 1MW gensets will be

relevant to the second monitoring period onwards, and not to this report.

In the first 4 months of the project operation, much of the data were recorded manually by

operators. Installation of a paperless system that enables continuous monitoring using a data

logger has been completed and has been in operation since February 25, 2010. Most of the

monitored figures from March 1, 2010 onward, as shown in the report, demonstrate the results

from the paperless system.

It is noted that the Project has yet to install the flare system, mentioned in the PDD as being

necessary if and when there is excess biogas. Srijaroen has delayed its plan to install a flare system,

at least until the operation of 2x1MW gensets has stabilized which can be observed in subsequent

monitoring period, as it is currently able to use all biogas produced.

Operation of the Project

The Project has been in commercial operation since October 21, 2009. The operational time in this

context includes downtime due to maintenance or technical issues.Srijaroen Palm Oil Wastewater Treatment CDM Monitoring Report

Project in Krabi Province, Thailand

Page 6 of 40

Report Version 1.1: June 22, 2010 2. 

### CERs Calculation Methodology

The CDM small

‐ scale methodologies AMS

‐ III.H version 9 and AMS

‐ I.D version 13 are used to

compute the CERs.

2.1. Project Boundary

The overall boundary of the Project is illustrated by the schematic diagram below.

Project boundary



### PEA Grid

Figure 1 Schematic diagram of project boundary

The project activity involves two main technologies as follows:

• Wastewater treatment system; and

• Electricity generation system

Wastewater Treatment System

POME from crude palm oil production process is first treated in an oil trap pond to separate

silt/sand and oil, then in a temperature and volume equalization pond before being fed into a

newly installed Modified Covered Lagoon. Anaerobic microorganisms remove organic compounds Oil Trap

Lagoon Equalization

Lagoon Modified

Covered Lagoon

Open

Lagoon 1 Open

Lagoon 2

Open

Lagoon 4

Open

Lagoon 3 Land

Application

Liquid fertilizer for

palm oil plantation Desulphurization

Unit

Dehumidifying

Unit

Biogas

Gensets Future

Flare

Net electricity

exported to grid Biogas Excess Biogas (if any)

Treated wastewater Wastewater

from factory Sludge

Electricity for

internal use Electricity imported

from PEA Overflow

LagoonSrijaroen Palm Oil Wastewater Treatment CDM Monitoring Report

Project in Krabi Province, Thailand

Page 7 of 40

Report Version 1.1: June 22, 2010 in the form of the Chemical Oxygen Demand (COD). The anaerobic process results in the

production of methane

‐ rich biogas in the digester, which is recovered for energy production.

Treated wastewater from the digester is then sent for secondary treatment in a series of four

existing open lagoons and overflow ponds. Finally, the effluent from the last two lagoons is

discharged to adjacent palm oil plantations, acting as liquid fertilizer.

In addition, approximately 807 tonnes of sludge was removed from the existing ponds and digester

in March 19

‐ 20, 2010, which was the first sludge removal since the start of the factory. The

removed sludge was used for soil application, as fertilizer in the surrounding palm plantation

owned by Srijaroen. However, in line with AMS

‐ III.H, the project emission due to the sludge

removal is not accounted in this report as the sludge was applied to Srijaroen’s plantation.

Electricity Generation System

The recovered biogas from bio

‐ digester is purified in a desulphurization unit and then dried in a

dehumidifying unit, before entering biogas engine

‐ generators (from GE Jenbacher) for electricity

generation. The electricity generated from the engines is used both internally at the site to power

the project facilities as well as for export to the PEA grid.

In the case of non

‐ operation of the biogas engine generator(s), electricity is imported from the grid

for internal use at the site. Such consumption is monitored via an electricity meter and is

accounted in the calculation of CERs as project emissions.

Finally, there is a delay in flare installation as mentioned under Section 1.3, as under the current

operation, all the total gas generated from the digester is sent to generator for electricity

generation and no excess biogas is generated.

2.2. Calculation methodology

The methodologies and tool applied for the calculation of CERs are:

• CDM methodology AMS

‐ I.D “Grid connected renewable electricity generation” Version 13; and

• CDM methodology AMS

‐ III.H “Methane recovery in wastewater treatment” Version 9; and

• CDM “Tool to calculate the emission factor for an electricity system”; and

• CDM “Tool to determine project emission from flaring gases containing methane”

As per the above mentioned methodologies and tools, the calculation of total Emission Reduction

from the project is governed by the following equations.

ER

m = ER

m,ww + ER

m,power [Eq. 1]

Where monthly emission reduction from wastewater treatment component (ER

m,ww ) is calculated

as follows;

ER

m,ww = MD

m – PE

m, ‐ Leakage

m [Eq. 2]

And, monthly emission reduction from power generation component due to electricity

displacement (ER

m,power ) is calculated as follows;Srijaroen Palm Oil Wastewater Treatment CDM Monitoring Report

Project in Krabi Province, Thailand

Page 8 of 40

Report Version 1.1: June 22, 2010 ER

m, power = EG

m, displaced x EF m,grid [Eq. 3]

Leakage

m is the leakage emissions from the transfer of equipment(s) to or from another activity.

This is not applicable for the Project in line with the registered PDD, thus Leakage is considered to

be “Zero”.

Nomenclatures are explained below.

ER

m = total emission reductions from project activity in month m (tCO

2 e/month)

ER

m,ww = emission reductions from wastewater component in month m (tCO 2 e/month)

ER

m, power = emission reduction from power generation component due to electricity

displacement in month m (tCO

2 e/month)

MD

m = baseline emissions from methane recovered and destroyed in month m

(tCO 2 e/month)

PE

m = project emissions from wastewater treatment component of project activity in

month m (tCO 2 e/month)

EG

m, displaced = quantity of electricity that would be displaced by the project activity in month m

(MWh/month)

EF

y, grid = Thailand’s grid emission factor (tCO 2 e/MWh)

It should be noted that biogas upgrading and compression are not associated with the project

activity and thus were excluded from the project emission calculation as indicated in the CDM

‐

PDD.

As per the requirement of methodology AMS

‐ III.H version 9, the calculation of emission reductions

in this project activity is based on the amount of methane recovered and fuelled or flared that is

monitored ex

‐ post. For the electricity generation component based on methodology AMS

‐ I.D

version 13, the calculation is based on the amount of power produced by the Project multiplied by

the grid emission factor stated in the registered PDD.Srijaroen Palm Oil Wastewater Treatment CDM Monitoring Report

Project in Krabi Province, Thailand

Page 9 of 40

Report Version 1.1: June 22, 2010 3. Monitoring Plan

3.1 CDM Working Team and Monitoring System

Consistent with the CDM

‐ PDD, Srijaroen has appointe d a project manager who is responsible for all

data monitoring, acquisition and recording for CDM purposes. The staffs have been trained to

operate all monitoring equipments prior to the start of the Project, and all readings have been

taken in a systematic and transparent manner under the supervision of the management. Quality

control and assurance procedures have been undertaken in accordance with that outlined in the

monitoring plan. The database has been maintained to record all relevant data as per the

monitoring plan.

The team reviews the data and regularly submits a complete set of documents to the

management, explaining the calculation procedure and the resultant CER amount.

The structure of the CDM organization chart at Srijaroen is outlined below.

Figure 2: CDM Organization Chart

The main duties for CDM working team can be described as follows:

• The Project Manager is responsible for the overall management of the working team members

to ensure adherence to the CDM monitoring plan and procedures.

• The Project Engineer is responsible for cooperating with and assisting the Project Manager to

manage working team members.

• The Biogas Engineer is responsible for controlling and operating the Modified Covered Lagoon

system as well as to monitor the data in accordance with the CDM monitoring plan.

• The Laboratory Officer is responsible for conducting analytical activity in laboratory as and when

requested by Biogas Engineer.Srijaroen Palm Oil Wastewater Treatment CDM Monitoring Report

Project in Krabi Province, Thailand

Page 10 of 40

Report Version 1.1: June 22, 2010 • The Maintenance Operator is responsible for the inspection and maintenance of the biogas

system and power generation system.

• The Biogas Operator is responsible for the overall operation of the biogas system.

• The Waste Water Pond Operator is responsible for checking and maintaining good condition of

wastewater ponds.

3.2 Monitoring Equipments

Table 1: Summary of monitoring equipments installed

Equipment

ID No. Type of

Equipment Brand/

Model Serial

Number Range Accuracy

BFM

‐ 001 Gas Flow

Meter FCI/

ST51 306323 {1} 0

‐ 2,000 Nm 3 /h ± 1% reading

± 0.5% full scale

BFM

‐ 002 Gas Flow

Meter FCI/

ST51 306636 {1} 0

‐ 1,000 Nm 3 /h ± 1% reading

± 0.5% full scale

BFM

‐ 003 Gas Flow

Meter FCI/

ST51 306324 {1} 0

‐ 1,000 Nm 3 /h ± 1% reading

± 0.5% full scale

BFM

‐ 004 Gas Flow

Meter FCI/

ST51 322047 {1} 0

‐ 1,000 Nm 3 /h ± 1% reading

± 0.5% full scale

TS

‐ 001 Temperature

Sensor FCI/

ST51 306323 0

‐ 100 O C ± 1% reading

± 0.5% full scale

TS

‐ 002 Temperature

Sensor FCI/

ST51 306636 0

‐ 100 O C ± 1% reading

± 0.5% full scale

TS

‐ 003 Temperature

Sensor FCI/

ST51 306324 0

‐ 100 O C ± 1% reading

± 0.5% full scale

TS

‐ 004 Temperature

Sensor FCI/

ST51 322047 0

‐ 100 O C ± 1% reading

± 0.5% full scale

PS

‐ 001 Pressure

Gauge SSI/

KI,1.6 C42824 (

‐ 250)

‐ 250

mbar TBD

PS

‐ 002 Pressure

Gauge Bull

‐ Brand TBD {2} 0

– 2,000

mmAq TBD

PS

‐ 003 Pressure

Gauge Bull

‐ Brand/611

‐ 52

‐

131

‐ 00020Z C42823 {2} 0

– 2,000

mmAq TBD

PS

‐ 004 Pressure

Gauge Bull

‐ Brand TBD {2} 0

– 2,000

mmAq TBD

PS

‐ 005 Pressure

Gauge NUOVA FIMA 2670

‐ 3L 0

‐ 100 mbar ± 1.6% as per

UNI8239

{5 } PS

‐ 006 Pressure

Gauge SSI/KI,1.6 TBD (

‐ 250)

‐ 250 mbar TBD

{5} PS

‐ 007 Pressure

Gauge Bull

‐ Brand TBD { 2 } 0

– 2,000

mmAq TBD

{5} PS

‐ 008 Pressure

Gauge NUOVA FIMA TBD 0

‐ 100 mbar ± 1.6% as per

UNI8239

MTA

‐ 001 CH4

Analyzer UNION/

INCA BIO 04 91084 0

‐ 100% ± 1%

MTA

‐ 002 CH4

Analyzer UNION/

INCA BIO 04 90992 0

‐ 100% ± 1%Srijaroen Palm Oil Wastewater Treatment CDM Monitoring Report

Project in Krabi Province, Thailand

Page 11 of 40

Report Version 1.1: June 22, 2010 WFM

‐ 001 Water Flow

Meter ABB/

DE43FT1HSD1ASAA2G

D010E 6709230625 0

‐ 240 + 0.5%

CA

‐ 001 COD

Analyzer HACH/

DR5000 1249249 190

‐ 1,100 nm

(WAVELENGTH

RANGE) ±1 nm

DM

‐ 001 Digital Meter TESTO/

605

‐ H1 39504351 5 %

‐ 95 %RH

,

0

‐ 50 O C dry

‐ bulb,

(

‐ 20) to 50 O C dew

point ± 3 %RH

,

± 0.5 O C

{5} DM

‐ 002 Digital Meter TESTO/

605

‐ H1 39504309 5 %

‐ 95 %RH

,

0

‐ 50 O C dry

‐ bulb,

(

‐ 20) to 50 O C dew

point ± 3 %RH

,

± 0.5 O C

EM

‐ 001 Electricity

Meter SCHNEIDER ELECTRIC/

PM750 0039016298 3 phase 400 V CT/5A (

0

‐ 1.84 x 1015 kW ) Class 0.5

(0.5%)

EM

‐ 002 Electricity

Meter SCHNEIDER ELECTRIC/

PM750 0039014487 3 phase 400 V CT/5A (

0

‐ 1.84 x 1015 kW ) Class 0.5

(0.5%)

EM

‐ 003 Electricity

Meter GENERAL ELECTRIC/

30.3182.117 4981385 N/A N/A

{3} EM

‐ 004 Electricity

Meter SCHNEIDER ELECTRIC/

PM750 0039026803 3 phase 400 V CT/5A

( 0

‐ 1.84 x 1015 kW ) Class 0.5

(0.5%)

{4} PEA

‐ EM

‐

001 , Electricity

Meter GENIUS/

EDMI 206500128 3 phase 33kV

CT/5A Class 0.5s

{6} PEA

‐ EM

‐

002 Electricity

Meter GENIUS/

EDMI 207712457 3 phase 33kV

CT/5A Class 0.5s

WS

‐ 001 Weight Scale

to Measure

Sludge Commandor/

HP

‐ 02B 0000362 at 0 to 10 tonnes

+ 10kg

at 10

‐ 40 tonnes +

20kg

at 40

‐ 80 tonnes +

30kg 0

‐ 80 tonnes

PPL

‐ 001 Paperless

system Honeywell/

Minitrend QX 103Y08465200

0001 N/A + 0.1% at 0

‐ 500

ohm load

+ 0.25% at 500

–

1,000 ohm load

{1} Normal Cubic Meter (Nm 3 ) is the volume of substance at normal condition (0 O C and 1 atm), this condition

is applicable to all readings of biogas flow meters

{2} 1 mBar is equal to 10.2 mmAq

{3} Refers to electricity meter used to record electricity consumption by the biogas facilities, including

electricity from biogas plant and PEA grid

{4} Refers to electricity meter used to record units of electricity exported to PEA

{5} Refers to backup equipment that will be temporary used when original equipment is sent for calibration

{6} Refers to electricity meter used to record units of electricity imported from PEA to biogas and palm oil mill

facilitiesSrijaroenPalmOilWastewaterTreatmentCDMMonitoringReportProjectinKrabiProvince,ThailandPage12of40ReportVersion1.1:June22,2010Figure3:MonitoringequipmentlocationSrijaroenPalmOilWastewaterTreatmentCDMMonitoringReportProjectinKrabiProvince,ThailandPage13of40ReportVersion1.1:June22,2010Figure4:LocationsofelectricitymetersProjectBoundaryPEAElectricityMeter(import)(PEA‐EM‐002)PEAElectricityMeter(export)(PEA‐EM‐001)Srijaroen Palm Oil Wastewater Treatment CDM Monitoring Report

Project in Krabi Province, Thailand

Page 14 of 40

Report Version 1.1: June 22, 2010 3.3 Monitored Parameters

Table 2: Summary of monitored parameters

Equipment

ID No. Parameter

as in CDM

‐

PDD Description in PDD Unit Frequency

of measure as

specified in

CDM

‐ PDD Remark

EM

‐ 004 EG y,consumed Quantity of electricity

consumed by the

project activity

facilities MWh/day Continuously Manual record in data

log book

N/A Q fuel_consumed,y Amount of diesel oil

consumed by project

activity TJ

‐ The project activity

does not involve any

diesel oil consumption

WFM

‐ 001 Q

y,ww Volume of

wastewater treated m 3 /year Continuously Manual record in data

log book until February

28, 2010. After March

1, 2010

, the paperless

system has been used

CA

‐ 001 {2}

(for in

‐

house

laboratory,

not used for

the

calculation) COD y,ww,treated Chemical oxygen

demand of the final

treated wastewater

discharged Tonnes/m 3 Measure

monthly by

outside

laboratory.

More

frequent

sampling is

conducted by

in

‐ house

laboratory In

‐ house sampling is

generally taken on a

weekly basis. The

results are used

internally for

operational purposes.

For CERs calculation,

the monthly results

from external

laboratory are used.

WS

‐ 001 S y,final Amount of final

sludge generated by

the wastewater

treatment Tonnes/year Periodically;

when sludge

is removed Srijaroen removed

sludge once. The

amount of sludge

removed was

estimated based on

actual weight/load x

number of load.

N/A End use of

sludge End use of final

sludge Text Periodically

when sludge

is removed

and applied to

land for

plantation

CA

‐ 001 {2}

(for in

‐

house

laboratory,

not used for

the

calculation) COD y,ww,untreat

ed Chemical oxygen

demand of untreated

wastewater entering

to digester Tonnes/m 3 Measure

monthly by

outside

laboratory.

More

frequent

sampling is

conducted by

in

‐ house

laboratory In

‐ house sampling is

generally taken on a

daily basis. The results

are used internally for

operational purposes.

For CERs calculation,

the monthly results

from external

laboratory are used.Srijaroen Palm Oil Wastewater Treatment CDM Monitoring Report

Project in Krabi Province, Thailand

Page 15 of 40

Report Version 1.1: June 22, 2010 N/A COD y,removed,j Chemical oxygen

demand removed by

the biogas digester

equipped with

methane recovery Tonnes/m 3 Calculated Calculated as the

difference between

monitored data of

COD y,ww,untreated and

COD y,ww,dig,treated

N/A COD y,removed,i Chemical oxygen

demand removed by

open lagoon system

to which sequential

anaerobic treatment

step (biogas digester)

is being introduced Tonnes/m 3 Calculated Calculated as the

difference between

monitored data of

COD y,ww,dig,treated and

COD y,ww,treated

CA

‐ 001 {2}

(for in

‐

house

laboratory,

not used for

the

calculation) COD y,ww,dig.trea

ted Chemical oxygen

demand of

wastewater after

being treated by the

biogas digester Tonnes/m 3 Measure

monthly by

outside

laboratory.

More

frequent

sampling is

conducted by

in

‐ house

laboratory In

‐ house sampling is

generally taken on a

daily basis. The results

are used internally for

operational purposes.

For CERs calculation,

the results from

external laboratory are

used.

PEA

‐ EM

‐ 001 EG y,displaced Quantity of electricity

that displaced by

project activity MWh/year Continuously The consistency of

monitored data is

verified through

comparison with actual

power sales records to

the PEA i.e. electricity

bills.

BFM

‐ 001 FV REC,h Total biogas

recovered from the

digester Nm 3 biogas {1} Continuously

Manual record in data

log book until February

28, 2010. After March

1, 2010

, the paperless

system has been used BFM

‐ 004 FV FL,h Biogas sent to flare Nm 3 biogas {1} Continuously

BFM

‐ 002

BFM

‐ 003 FV GEN,h Biogas sent to

gensets Nm 3 biogas {1} Continuously

MTA

‐ 001

MTA

‐ 002 fv CH4,h Volumetric fraction of

CH4 component in

the residual gas (fraction) Continuously

N/A T flare Temperature in the

exhaust gas of the

flare Degree

Celcius Continuously Not relevant for this

monitoring period as

flare has not yet been

installed

N/A Other flare

operation

parameter Equipments to

monitor proper

operation of the flare N/A Not specified Not relevant for this

monitoring period as

flare has not yet been

installed

PS

‐ 001, PS

‐

002, PS

‐ 003,

PS

‐ 004, PS

‐

005, PS

‐ 006, P biogas Pressure of biogas

combusted mBar (Gauge) Continuously Manual record in data

log bookSrijaroen Palm Oil Wastewater Treatment CDM Monitoring Report

Project in Krabi Province, Thailand

Page 16 of 40

Report Version 1.1: June 22, 2010 PS

‐ 007, and

PS

‐ 008

TS

‐ 001,

TS

‐ 002,

TS

‐ 003,

TS

‐ 004 T biogas Temperature of

biogas combusted Degree

Celcius or

Kelvin Continuously Manual record in data

log book until February

28, 2010. After March

1, 2010

, the paperless

system has been used

{1} Normal Cubic Meter (Nm 3 ) is the volume of substance at normal condition (0 O C and 1 atm). This condition is

applicable to all readings of biogas flow meters

{2} COD analytical method for CA

‐ 001 is Hach Method No. 8000 that is accepted by US EPA No. 410.4

. Chemical

used for COD testing in CA

‐ 001 is subjected to COD Standard (NIST)SrijaroenPalmOilWastewaterTreatmentCDMMonitoringReportProjectinKrabiProvince,ThailandPage17of40ReportVersion1.1:June22,20103.4QualityControl/QualityAssuranceAsstatedinPDD,qualityassuranceandqualitycontrolareextremelyimportantinensuringtheaccuratequantificationofemissionreductionsachieved.Calibrationprocedureshavebeenconductedinaccordancewithindustrycommonpractice.Calibrationstandards,frequenciesandcertificateswillbeprovidedtotheDOEduringthesitevisit.Equipmentsrequiringregularcalibrationaredescribedbelow:3.4.1EquipmentCalibrationTable3:SummaryofqualitycontrolandassuranceofmonitoringequipmentEquipmentsID.No.SerialNumberReferenceStandardasinPDDCalibrationStandardAppliedCalibrationFrequencyCalibrationEntityDateofLastCalibrationDateofNextCalibrationBiogasFlowMeter1BFM‐001(306323)IndustryStandardN.I.S.T.(U.S.NationalInstituteofStandardsandTechnology)18monthsFLUIDCOMPONENTSINTERNATIONALLLC29/06/0929/12/10BiogasFlowMeter2BFM‐002(306636)IndustryStandard09/06/0909/01/11BiogasFlowMeter3BFM‐003(306324)IndustryStandard29/06/0929/12/10BiogasFlowMeter4BFM‐004(322047)IndustryStandard02/03/1002/09/11BiogasTemp.Sensor1TS‐001(306323)IndustryStandard29/06/0929/12/10BiogasTemp.Sensor2TS‐002(306636)IndustryStandard09/06/0909/01/11BiogasTemp.Sensor3TS‐003(306324)IndustryStandard29/06/0929/12/10BiogasTemp.Sensor4TS‐004(322047)IndustryStandard02/03/1002/09/11SrijaroenPalmOilWastewaterTreatmentCDMMonitoringReportProjectinKrabiProvince,ThailandPage18of40ReportVersion1.1:June22,2010BiogasPressureGauge1PS‐001(C42824)IndustryStandardThailandInstituteofScientificandTechnologicalResearch(TISTR)andNIMTReplaceorcalibrateevery12monthsCALIBRATIONMANAGEMENTCO.,LTD25/05/1025/05/11BiogasPressureGauge2PS‐002(‐)IndustryStandardAwaitingresultAwaitingresultBiogasPressureGauge3PS‐003(C42823)IndustryStandard25/05/1025/05/11BiogasPressureGauge4PS‐004(‐)IndustryStandardAwaitingresultAwaitingresultBiogasPressureGauge5PS‐005(2670‐3L)IndustryStandard21/04/0921/03/10BiogasPressureGauge6(backup#1)PS‐006(‐)IndustryStandardAwaitingresultAwaitingresultBiogasPressureGauge7(backup#2)PS‐007(‐)IndustryStandardAwaitingresultAwaitingResultBiogasPressureGauge8(backup#3)PS‐008(‐)IndustryStandardAwaitingresultAwaitingresultMethaneAnalyzer1MTA‐001(91084)IndustryStandardEquipmentManual,StandardMassno986682#andStandardGaugesno405156/405157#12monthsUnionInstrumentsGmbH26/08/0925/08/10MethaneAnalyzer2MTA‐002(90992)IndustryStandardEquipmentManual,StandardMassno986682#and12monthsUnionInstrumentsGmbH25/08/0925/08/10SrijaroenPalmOilWastewaterTreatmentCDMMonitoringReportProjectinKrabiProvince,ThailandPage19of40ReportVersion1.1:June22,2010StandardGaugesno405156/405157#WastewaterFlowMeter1WFM‐001(6709230625)IndustryStandardPEDStandard12monthsABBLimited14/06/0914/06/10CODAnalyzerCA‐001(1249249)NotspecifiedASTME275ASTME92512monthsSPCCalibrationCenterCo.,Ltd05/02/1005/02/11DigitalMeter(%RH,T_dry‐bulb,T_dewpoint)DM‐001(39504351)NotSpecifiedWI‐CA‐001‐LReplaceorchangeevery12monthsEntechAssociateCo.,Ltd30/04/1030/04/11DigitalMeter(%RH,T_dry‐bulb,T_dewpoint)DM‐002(39504309)NotSpecifiedEntechAssociateCo.,Ltd2/06/102/06/11ElectricityMeter1EM‐001(003901628)IndustryStandardNIST12monthsSchneider(Thailand)Co.,Ltd11/06/0911/06/10ElectricityMeter2EM‐002(0039014487)IndustryStandardNIST12monthsSchneider(Thailand)Co.,Ltd30/07/0930/07/10ElectricityMeter3EM‐003(4981385)IndustryStandardN/AN/AN/AN/AN/AElectricityMeter4EM‐004(0039026803)IndustryStandardNIST12monthsSchneider(Thailand)Co.,Ltd10/06/0910/06/10PEAElectricityMeter(export)PEA‐EM‐001(206500128)IndustryStandardPEA’sstandardN/AProvincialElectricityAuthorityN/AN/APEAElectricityMeter(import)PEA‐EM‐002(207712457)IndustryStandardPEA’sstandardN/AProvincialElectricityAuthorityN/AN/ASrijaroenPalmOilWastewaterTreatmentCDMMonitoringReportProjectinKrabiProvince,ThailandPage20of40ReportVersion1.1:June22,2010WeightScale1(truckscale)WS‐001(0000362)IndustryStandardTheWeightsandMeasuresAct.24monthsDepartmentofWeightandMeasures01/04/0831/03/11Table4:SummaryofmonitoringparametersmeasuredbyaccreditedoutsourcelaboratoryMonitoredParameterMonitoringMethodologyItemsMonitoringSummary1.CODenteringdigester(CODy,ww,untreated)2.CODleavingdigester(CODy,ww,dig.treated)3.CODatfinalpond(CODy,ww,treated)AnalyzedinAccreditedLaboratoryMonitoring/AnalyzingFrequencyasperPDD1.CODenteringDigestermeasuredmonthly2.CODleavingDigestermeasuredmonthly3.CODatfinalpondmeasuredmonthlySamplingandAnalyticalMethodSamplingmethod:1060B.CollectionofSamplesMethodAnalyticalmethod:5220C.ClosedRrflux,TitrimetricMethodReferentStandardisstandardmethodfortheExaminationofWaterandWastewater20thEditionAccreditedLaboratoryRegistrationNumberAccreditedlaboratoryregistrationnumberis(ว-113),accreditedbyDepartmentofIndustrialWorkLaboratoryEntityVictoryCo.,LtdLaboratoryEquipmentCertifiedbyPrinceofSongklaUniversitySrijaroen Palm Oil Wastewater Treatment CDM Monitoring Report

Project in Krabi Province, Thailand

Page 21 of 40

Report Version 1.1: June 22, 2010 4. Delivered Emission Reduction

4.1. Fixed Values

Fixed values adopted for the calculation of CERs is summarized in the following table. These

parameters are consistent with section B.6.1 and B.6.2 in the CDM

‐ PDD.

Table 5: Summary of fixed parameters used in calculation

Parameters PDD

Reference Sources Unit Figure

Maximum methane producing

capacity of the wastewater B

o, ww IPCC default value kgCH

4 /kgCOD 0.21

Global warming potential for

methane GWP_CH 4 AMS

‐ III.H version 9 tCO 2 e/tCH

4 21

Emission factor for thermal

energy generation using diesel CO 2 EF fuel IPCC 2006 table 2.2 tCO 2 /TJ 74.1

Methane correction factor based

on type of treatment and

discharge pathway of the

wastewater MCF ww,final AMS

‐ III.H,

Table III.H.1 Fraction 0.2

Degradable organic content of

final sludge generated by the

wastewater treatment DOC m,s,final IPCC default value

for industrial

sludge Fraction 0.09

Methane correction factor of the

landfill that receives the final

sludge MCF s,final AMS

‐ III.H

(end

‐ use of sludge

is land application) Fraction 0

Fraction of DOC dissimilated to

biogas DOC F IPCC default value Fraction 0.5

Fraction of CH4 in landfill gas F IPCC default value Fraction 0.5

Methane correction factor for the

wastewater treatment system of

the project activity equipped with

methane recovery MCF ww,j AMS

‐ III.H,

Table III.H.1 Fraction 1.0

Degradable organic content of

the untreated sludge generated DOC m,s,untreated IPCC default value

for industrial

sludge Fraction 0.09

Dissolved methane content in the

treated wastewater [CH4] m,ww,treated AMS

‐ III.H Tonnes CH4/

m 3 wastewater 0.0001

Methane correction factor for the

existing anaerobic wastewater

treatment system “open lagoon”

to which the sequential

anaerobic treatment step is being

introduced MCF ww,treatment AMS

‐ III.H,

Table III.H.1 Fraction 0.8

Lower Heating Value of CH4 LHV CH4 IPCC default value TJ/tonne CH4 50.4

Normalized density of CH4 ρ CH4 IPCC default value Kg CH4/Nm 3 CH4 0.7168

Grid Emission Factor EF m,grid PDD tCO 2 /MWh 0.448SrijaroenPalmOilWastewaterTreatmentCDMMonitoringReportProjectinKrabiProvince,ThailandPage22of40ReportVersion1.1:June22,20104.2.CDMMonitoredData(withcorrection)Table6:Monitoredquantitiesofbiogasgenerationandutilizationinprojectactivity(aggregatedtomonthly)MonitoredParametersQuantityofbiogasfedtogenset#1Quantityofbiogasfedtogenset#2QuantityofbiogastoflareQuantityofbiogasgenerationandutilizationSourcesBFM‐002BFM‐003BFM‐004BFM‐002,‐003and004SynonymsFVm,GEN‐#1FVm,GEN‐#2FVm,FLFVm,RECUnitsNm3/month(wetbasis)Nm3/month(wetbasis)Nm3/month(wetbasis)Nm3/month(wetbasis)Oct‐09110,164{1}00110,164Nov‐09285,898{1}00285,898Dec‐09141,06500141,065Jan‐10154,2142,7630156,977Feb‐1080,67967,7210148,400Mar‐1058,097{2}233,839{2}0291,936Apr‐10172,912{2}108,938{2}0281,851Total/Avg.1,033,030413,26101,416,291{1}Referstoquantityofbiogasthatwascorrectedfromthereadingofbiogasflowmeteratreferentconditionofnormalconditionat21OCand101,325Pa(US.Standard)tobethereadingatreferentconditionofnormalconditionat0OCand101,325Pa(UniversalStandard){2}ReferstodatamonitoredandrecordedinpaperlesssystemSrijaroenPalmOilWastewaterTreatmentCDMMonitoringReportProjectinKrabiProvince,ThailandPage23of40ReportVersion1.1:June22,2010Table7:Monitoredpropertiesofbiogasgenerationandutilizationinprojectactivity(aggregatedtomonthly)MonitoredParametersBiogasTemperatureBiogasPressurebiogasrecoveredfromdigesterbiogasfedtogenset#1biogasfedtogenset#2biogasfedtoflarebiogasrecoveredfromdigesterbiogasfedtogenset#1biogasfedtogenset#2biogasfedtoflareSourcesTS‐001TS‐002TS‐003TS‐004PS‐001PS‐002PS‐003PS‐004SynonymsTbiogas,RECTbiogas,GEN#1Tbiogas,GEN#2Tbiogas,FLPbiogas,RECPbiogas,GEN#1Pbiogas,GEN#2Pbiogas,FLUnitsDegreeCDegreeCDegreeCDegreeCmBar(gauge)mBar(gauge)mBar(gauge)mBar(gauge)Oct‐093431N/AN/A47131N/AN/ANov‐093529N/AN/A53131N/AN/ADec‐093732N/AN/A49132N/AN/AJan‐10383235N/A42133126N/AFeb‐10413334N/A40133121N/AMar‐103933{1}33{1}N/A40133115N/AApr‐104234{1}34{1}N/A40116126N/ATotal/Avg.383234N/A44130121N/A{1}ReferstodatamonitoredandrecordedinpaperlesssystemSrijaroenPalmOilWastewaterTreatmentCDMMonitoringReportProjectinKrabiProvince,ThailandPage24of40ReportVersion1.1:June22,2010Table8:Monitoredpropertiesofbiogasgenerationandutilizationinprojectactivity(aggregatedtomonthly),continuedMonitoredParametersMethanecontentinbiogasfedtogenset#1andgenset#2Conditionofdriedbiogasafterdehumidifyingsystem{1}DewpointtemperatureofbiogasBiogasPressureSourcesMTA‐002DM‐001PS‐005SynonymsfvCH4,GENsTbiogas,dpPbiogas_dehumidUnits%Nm3CH4/Nm3biogas(drybasis)DegreeCmBar(gauge)Oct‐0964.9%10.554Nov‐0966.6%10.654Dec‐0965.0%11.347Jan‐1064.0%11.342Feb‐1064.2%13.141Mar‐1065.3%{2}13.541Apr‐1065.8%{2}13.542Total/Avg.65.1%12.046{1}ReferstodatathatusedtoestimatethemassfractionofH2Ointhebiogasleavingdehumidifyingsystem{2}ReferstodatamonitoredandrecordedinpaperlesssystemSrijaroenPalmOilWastewaterTreatmentCDMMonitoringReportProjectinKrabiProvince,ThailandPage25of40ReportVersion1.1:June22,2010Table9:Monitoredquantitiesandpropertiesofwastewaterinprojectactivity(aggregatedtomonthly)MonitoredParametersQuantityofwastewaterfedtodigesterCODtestingbyOutsourceLabCODenteringdigesterCODleavingdigesterCODatfinalpondSourcesWFM‐001OutsourceOutsourceOutsourceSynonymsQm,wwCODm,ww,untreatedCODm,ww,dig.treatedCODm,ww,treatedUnitsm3/monthmg/litermg/litermg/literOct‐099,24428,9112,8651,333{1}Nov‐0913,52329,4492,5891,333Dec‐095,94546,4622,4971,317Jan‐108,04532,3672,7961,476Feb‐106,24060,4162,2891,674Mar‐1011,293{2}52,0002,4671,760Apr‐1011,310{2}43,8212,7161,637Total/Avg65,60041,9182,6031,504{1}MissingCODvaluewasestimatedbyusingCODvaluemeasuredinthefollowingmonth{2}ReferstodatamonitoredandrecordedinpaperlesssystemSrijaroenPalmOilWastewaterTreatmentCDMMonitoringReportProjectinKrabiProvince,ThailandPage26of40ReportVersion1.1:June22,2010Table10:Monitoredquantitiesandpropertiesofwastewatersludgeremoved(aggregatedtomonthly)MonitoredParameterswastewatersludgeremovedEnduseofsludgeQuantityofsludgeMoisturecontentCODofsludgeremovedDensityofsludgeremovedSourcesWS‐001LaboratoryLaboratoryLaboratoryreceiptsSynonymSm,finalMCsludgeCODsludgeρsludgeN/AUnitstsludge/monthkgH2O/kgsludgemg/litertonnessludge/m3sludgeTEXTOct‐09‐  ‐  ‐  ‐ ‐Nov‐09‐  ‐  ‐  ‐ ‐Dec‐09‐  ‐  ‐  ‐ ‐Jan‐10‐  ‐  ‐  ‐ ‐Feb‐10‐  ‐  ‐  ‐ ‐Mar‐1080778.4%120,7671.08‐{1}Apr‐10‐ ‐ ‐ ‐‐Total/Avg.80778.4%120,7671.08‐{1}receiptfromtrucktransporterandphotographofsludgeremovedanddisposedtopalmoilplantationwerecollectedasevidence.SrijaroenPalmOilWastewaterTreatmentCDMMonitoringReportProjectinKrabiProvince,ThailandPage27of40ReportVersion1.1:June22,2010Table11:Monitoredamountofelectricitydisplacedtogridandconsumedinbiogasfacilities(aggregatedtomonthly)MonitoredParametersElectricitydisplacedPEAgridElectricityconsumedinbiogasfacilitiesElectricitygeneratedfrombiogasplantElectricityimportedfromPEASourcesPEA‐EM‐001EM‐004EM‐004SynonymEGm,displacedEGm,power,consumed1EGm,power,consumed2UnitskWh/monthkWh/monthkWh/monthOct‐09216,78617,1710Nov‐09549,73850,8540Dec‐09270,75521,8938,072Jan‐10294,93615,4112,843Feb‐10255,36035,10116,536Mar‐10539,28072,074699Apr‐10514,56066,9720Total/Avg.2,641,415279,47628,150Srijaroen Palm Oil Wastewater Quality Starch Wastewater Treatment CDM Monitoring Report

Treatment Project in Krabi Province, Thailand

Page 28 of 40

Report Version 1.1: June 22, 2010 4.3. Calculation of Emission Reduction

Project Emission Reduction

Consistent with AMS

‐ III.H version 9.0 and AMS

‐ I.D version 13, emission reductions achieved during

this monitoring period can be calculated as:

ER

m = ER

m,ww + ER

m,power

ER

m = total emission reductions from project activity in month m (tCO

2 e/month)

ER

m,ww = emission reductions from wastewater treatment component in month m (tCO 2 e/month)

ER

m, power = emission reduction from power generation component due to electricity displacement

in month m (tCO

2 e/month)

Emission Reductions from Wastewater Treatment Component (ER

m,ww )

Emission reduction from wastewater treatment component (ER

m,ww ) is calculated as follow;

ER

m,ww = MD

m – PE

m – Leakage

m



## • MD

m

As described in paragraph 34 of AMS

‐ III.H version 9, the calculation of emission reductions in this

project activity is based on the amount of methane recovered and fuelled (MD fuelled,m ) or flared

(MD flared,m ) that is monitored ex

‐ post. This is termed as MD

m in this monitoring period and can be

calculated as follows:

MD

m = MD fuelled, m + MD flared, m [eq.4]

Where;

MD

m = baseline emission from amount of methane recovered and fuelled or flared in month

m (tCO

2 /month)

MD fuelled,m = baseline emission from amount of methane recovered and fuelled in gensets in

month (tCO

2 /month)

MD flared,m = baseline emission from amount of methane recovered and flared in month m

(tCO

2 /month)

Baseline emission from amount of methane recovered and fuelled in gensets (MD fuelled, m ) is

calculated as follow;

MD fuelled, m = [FV

GENs ] x [fv

CH4 ] x [ 

### ρ CH4 

### ] x [GWP_CH4] [eq.5]

Where;

FV GENs = monitored quantity of biogas fed to gensets for electricity generation

(Nm 3 biogas)Srijaroen Palm Oil Wastewater Quality Starch Wastewater Treatment CDM Monitoring Report

Treatment Project in Krabi Province, Thailand

Page 29 of 40

Report Version 1.1: June 22, 2010 fv

CH4 = monitored volumetric fraction of CH4 content in biogas (volume fraction)

ρ CH4 = density of methane (tCH4/Nm 3 CH4)

GWP_CH4 = global warming potential of methane (tCO

2 e/tCH4)

And, baseline emission from amount of methane recovered and flared is calculated as follow;

MD fuelled, m = [FV

FL ] x 

### [FE flare 

### ] x [fv CH4 ] x [ 

### ρ CH4 

### ] x [GWP_CH4] [eq.6]

FV FL = monitored quantity of biogas fed to flare (Nm 3 biogas)

FE flare = Flare efficiency (%)

fv CH4 = monitored volumetric fraction of CH4 content in biogas (volume fraction)

ρ CH4 = density of methane (tCH4/Nm 3 CH4)

GWP_CH4 = global warming potential of methane (tCO

2 e/tCH4)



## • PE

m Project emissions from wastewater treatment component due to project activities are consisted

with;

PE

m = PE

m,power + PE m,ww,treated + PE m,s,final + PE m,fugitive + PE m,dissolved

PE

m,power represents project emissions on account of electricity or diesel consumed by the project

activity. Since the project activity does not entail diesel consumption, PE

m, power can be calculated as

follows:

PE

m,power = [EG m,consumed ] x [EF m,consumed ] [eq.7]

Where;

EG

m, consumed = Quantity of electricity consumed by the project activity (MWh/year)

EF m,consumed = Thailand’s grid emission factor (tCO

2 e/MWh)

PE m,ww,treated is the project emissions from degradable organic carbon in treated wastewater

discharged to lake/sea/river. Although all treated wastewater is applied to land as liquid fertilizer

for internal palm plantations, it is anyway accounted for project emissions. This is conservative.

PE m,ww,treated = [Q

m,ww ] x [GWP_CH4] x [B

o,ww ] x [COD m,ww,treated ] x [MCF ww,final ] [eq.8]

Where;

Q

m,ww = monitored volume of wastewater treated in month m (m 3 treated

wastewater/month)

GWP_CH4 = global warming potential of methane (tCO

2 e/tCH4)

B

o,ww = methane producing capacity of the wastewater (kgCH4/kgCOD)

COD m,ww,treated = chemical oxygen demand of final treated wastewater in month m (tCOD/m 3

treated wastewater)

MCF ww,final = methane correction factor for discharge of wastewater (fraction)Srijaroen Palm Oil Wastewater Quality Starch Wastewater Treatment CDM Monitoring Report

Treatment Project in Krabi Province, Thailand

Page 30 of 40

Report Version 1.1: June 22, 2010 Project emissions from the anaerobic decay of the final sludge generated in the wastewater are

notated as PE m,s,final

. Srijaroen removed wastewater sludge during March 2010 from its secondary

treatment open lagoon system. Removed sludge was directly distributed to Srijaroen’s palm

plantations to be used for soil application as fertilizer. The receipts of the hired entities to

transport and distribute the removed sludge are kept on

‐ site to substantiate the same. With the

application of removed sludge to plantation, the methane correction factor is appropriately

estimated as “Zero”. Therefore, PE

m, s final is taken as “Zero”. The following equation is used to

estimate project emission on the account of sludge removed.

PE

m, s, final = S m,final x DOC m,s,final x MCF m,s,final x DOC F x F x (16/12) x GWP_CH4 [eq.9]

Where;

PE m,s,final = methane emissions from the anaerobic decay of the final sludge generated in

the wastewater system in the month m (tCO

2 e)

S m,fina l

= amount of final sludge generated by the wastewater treatment in month m

(tonnes sludge)

DOC m,s,final = degradable organic content of the final sludge generated by the wastewater

treatment in month m (fraction)

MCF s,final methane correction factor of the landfill that receives the final sludge in month

m (fraction)

DOCF = fraction of DOC dissimilated to biogas (fraction)

F = fraction of CH4 in landfill gas (fraction)

GWP_CH4 = global warming potential of CH4 (tCO

2 e/tCH4)

PE m,fugitive,ww represents fugitive emissions through capture and utilization/combustion/flare

inefficiencies in the anaerobic wastewater treatment. It can be determined as follows:

PE

m, fugitive = PE m,fugitive,ww = [1

‐ CFE

ww ] x [Q

yww x B

o,ww x Σ (COD m,removed,j x MCF ww,j )] x [GWP_CH4 ] [eq.10]

Where;

PE m,fugitive,ww = fugitive emissions through capture and utilization/combustion/flare

inefficiencies in the anaerobic wastewater treatment system in month m

(tCO

2 /month)

CFE ww,flare = combustion efficiency of flare (fraction)

FV FL = quantity of biogas that is flared (Nm 3 biogas, wet basis)

fv

CH4 = monitored volumetric fraction of CH4 content in biogas (volume fraction, dry

basis)

ρ CH4 = density of methane (tCH4/Nm 3 CH4)

GWP_CH4 = global warming potential of methane (tCO

2 e/tCH4)

Project emissions from dissolved methane in treated wastewater are expressed as PE m,dissolved

. It

can be determined as follows:

PE m,dissolved = [Q

m,ww ]x [CH4 m,ww,treated ] x [GWP_CH4] [eq.11]Srijaroen Palm Oil Wastewater Quality Starch Wastewater Treatment CDM Monitoring Report

Treatment Project in Krabi Province, Thailand

Page 31 of 40

Report Version 1.1: June 22, 2010 Where;

Q

m,ww = monitored volume of wastewater treated in month m (m 3 treated

wastewater/month)

[CH4] m,ww,treated = dissolved methane content in the treated wastewater (tonnes CH4/m 3 treated

wastewater)

GWP_CH4 = global warming potential of methane (tCO2e/tCH4)

Remark: Default value of dissolved methane content, [CH4] m,ww,treated , in the treated wastewater at

0.0001 tonnes CH4/m 3 treated wastewater is applied, regarding to AMS

‐ III.H version 9.



## • Leakage

m Leakage

m is the leakage emissions from the transfer of equipment(s) to or from another activity.

This is not applicable for the Project, thus Leakage is considered to be “Zero”.

Emission reductions from wastewater treatment component due to project activity (ER

m,ww )

calculated in accordance with Equation [4] to [11] are summarized in table below.

Table 12: Emission reductions from wastewater treatment component in project activity

DATE MD

m PE

m,power PE m,ww,treated PE m,s,final PE m,fugitive PE m,dissolved ER

m,ww

[tCO2/m] [tCO2/m] [tCO2/m] [tCO2/m] [tCO2/m] [tCO2/m] [tCO2/m]

OCT 09 1,063 0 11 0 106 19 926

NOV 09 2,829 0 16 0 160 28 2,625

DEC 10 1,363 4 7 0 115 12 1,225

JAN 10 1,493 1 10 0 105 17 1,359

FEB 10 1,413 7 9 0 160 13 1,223

MAR 10 2,829 0 18 0 247 24 2,541

APR 10 2,753 0 16 0 205 24 2,507

TOTAL 13,742 13 87 0 1,098 138 12,406Srijaroen Palm Oil Wastewater Quality Starch Wastewater Treatment CDM Monitoring Report

Treatment Project in Krabi Province, Thailand

Page 32 of 40

Report Version 1.1: June 22, 2010 Emission Reductions from Power Generation Component (ER

m,power )

ER

m,power is emission reductions from the displacement grid electricity by electricity generated from

the project activity. ER

m,power is calculated by multiplying the KWh of displaced grid electricity with

grid emission factor. Combined margin (CM) grid emission factor is calculated according to the

“Tool to calculate the emission factor for an electricity system”. Mathematically, the calculation of

ER

m, power is expressed as follows:

ER

m, power = EG

m, displaced x EF m,grid

Where;

EG m,displaced = quantity of grid electricity that would be displaced by the project activity

(MWh/month)

EF m,grid = Thailand’s grid emission factor (tCO

2 e/MWh)

Emission reductions from power generation component due to the displacement grid electricity by

electricity generated from the project activity (ER

m,power ) calculated in accordance with Equation

above are summarized in table below.

Table 13: Emission reductions from power generation component in the project activity

DATE ER

m,power

[tCO2/m]

OCT 09 97

NOV 09 246

DEC 10 121

JAN 10 132

FEB 10 114

MAR 10 242

APR 10 231

TOTAL 1,183Srijaroen Palm Oil Wastewater Quality Starch Wastewater Treatment CDM Monitoring Report

Treatment Project in Krabi Province, Thailand

Page 33 of 40

Report Version 1.1: June 22, 2010 Total Emission Reductions

Consistent with AMS

‐ III.H version 9.0 and AMS

‐ I.D version 13, emission reductions achieved during

this monitoring period can be calculated from the summation of emission reduction from

wastewater treatment component (ER

m,ww ) and emission reductions from power generation

component, which expressed as below;

ER

m = ER

m,ww + ER

m,power

Table 14: Summary results of emission reductions from project activity

DATE EG

m,ww ER

m,power ER

m

[MWh/m] [tCO2/month] [tCO2/month]

OCT 09 926 97 1,023

NOV 09 2,625 246 2,871

DEC 10 1,225 121 1,346

JAN 10 1,359 132 1,491

FEB 10 1,223 114 1,337

MAR 10 2,541 242 2,782

APR 10 2,507 231 2,738

TOTAL 12,406 1,183 13,589

4.4. Summary of Emission Reduction

Emission reductions achieved from the implementation and operation of a new anaerobic digester

with methane recovery and utilization system by Srijaroen during October 16, 2009 to April 30,

2010 is 13,589 t CO 2 e

.

5. Comparison of the actual CERs claimed in the monitoring period with the estimated in the

registered PDD

The actual CERs generated in this monitoring period is higher than CERs estimated ex

‐ ante in PDD, by

22.4% 1

, when the result for the 6.5 month monitoring period was extrapolated to compare on an annual

basis. This was due to the greater

‐ than

‐ expected biogas recovery under phase 1 (1MW). As biogas

generation is a function of various factors, such as wastewater volume, COD load, and ambient

temperature, it is thought that there are multiple reasons for this result. Indeed, the actual monthly

wastewater volume fluctuated between 5,945 m 3 and 13,523 m 3 as opposed to approximately 10,800

m 3 /month (360m 3 /day) in the registered PDD, and the actual inlet COD level fluctuated between 28,911

mg/L and 60,416 mg/L as opposed to 55,000 mg/L in the registered PDD. In addition, there is a

difference stemming from the method of CER computation. Whereas the methodology requires the CER

calculations to be based on the monitored amount of methane captured and destroyed, the ex

‐ ante

estimate relies on a theoretical calculation involving factors such as B

o and MCF.

1 Based on 163 / 300 working days rather than 196 / 365 calendar daysSrijaroen Palm Oil Wastewater Quality Starch Wastewater Treatment CDM Monitoring Report

Treatment Project in Krabi Province, Thailand

Page 34 of 40

Report Version 1.1: June 22, 2010 It is noted for transparency that even with the increase in biogas capture, there is no adverse effect on

the additionality as established in the registered PDD, as even with this increase in biogas capture, the

Project’s IRR remains unchanged and below the benchmark. A reason for this is that despite there being

more biogas than expected, there was 10% less net power generation (the sole source of income for the

Project), because the power generation efficiency was much less than expected.Srijaroen Palm Oil Wastewater Quality Starch Wastewater Treatment CDM Monitoring Report

Treatment Project in Krabi Province, Thailand

Page 35 of 40

Report Version 1.1: June 22, 2010 APPENDIX I

Unit conversion of biogas stream ‐ from volume to mass flow rate

To calculate emission reductions from the Project, total biogas produced from digester (FV m,REC ), biogas

flow rate fed to gensets (FV m,GEN, ), biogas flow rate fed to flare (FV m,FL ) and methane content in biogas

(fv

CH4 ) are to be measured and monitored in the same basis, either as wet or dry. At Srijaroen project,

methane content in biogas (fv

CH4 ) is measured on a dry basis through methane analyzers installed at the

positions after wet scrubber (MTA

‐ 001) and after the de

‐ humidity system (MTA

‐ 002). By contrast, the

biogas flow rate is measured on a wet basis (as flow measurement of a wet stream is not possible under

a dry basis). To ensure accuracy in the calculation, “Tool to determine mass flow rate of greenhouse gas

in gaseous stream” (hereafter referred as “the Tool”) is applied to convert the fraction of methane

content in biogas from dry to wet basis. It is noted that the registered PDD preceded the publication of

the Tool. Nonetheless, “the Tool” is applied to ensure conservativeness of the Project.

The following equations are used for the calculation of total methane mass flow.

The mass flow rate of greenhouse gas (F i,t ) is determined as follows;

F i,t = V t,wb x v i,y,wb x ρ i,t

with ρ i,t = P

t x MM i

R

u x T

t

Where;

F i,t = Mass flow rate of greenhouse gas i in the gaseous stream in the time interval t (kg

gas/h)

V t,wb = Volumetric flow rate of gaseous stream in actual conditions (P

t , T

t ) in the time interval

t on a wet basis (m 3 wet gas/h)

ρ i,t = Density of greenhouse gas i in the gaseous stream in actual conditions (P

t , T

t ) in time

interval t (kg gas i/m3 dry gas)

v i,t,wb = Volumetric fraction of greenhouse gas i in the gaseous stream in a time interval t on a

dry or wet basis (m3 gas i/m3 dry gas)

P

t = Absolute pressure of the gaseous stream in time interval t (Pa)

MMi = Molecular mass of greenhouse gas i (kg/kmol)

Ru = Universal ideal gases constant (8314 Pa.m 3 /kmol.K)

Tt = Temperature of the gaseous stream in time interval t (K)

The volumetric fraction of the gaseous stream in time interval t on a wet basis (v i , t,wb ) is determined by

converting the fraction of methane content in biogas dry basis to wet basis as follows

v i,t,wb = v i,t,db /(1 +v H2O,t,db )

Where;

v i,t,wb = Volumetric fraction of the gaseous stream in time interval t on a wet basis (m3 gas i/m 3

wet gas)Srijaroen Palm Oil Wastewater Quality Starch Wastewater Treatment CDM Monitoring Report

Treatment Project in Krabi Province, Thailand

Page 36 of 40

Report Version 1.1: June 22, 2010 v i,t,db = Volumetric fraction of the gaseous stream in time interval t on a dry basis (m3 gas i/m 3

dry gas)

v H2O,t,db = Volumetric fraction of H 2 O in the gaseous stream in time interval t on a dry basis (m3

H 2 O/m3 dry gas)

The volumetric fraction of H 2 O in time interval t on a dry basis (v H2O,t,db ) should be estimated as per the

procedure provided below.

v H2O,t,db = m H2O,t,db x MM t,db

MM H2O

Where;

v H2O,t,db = Volumetric fraction of H 2 O in the gaseous stream in time interval t on a dry basis (m3

H 2 O / m3 dry gas)

m H2O,t,db = Mass fraction of H 2 O in the gaseous stream in time interval t on a dry basis (kg H 2 O /

kg dry gas)

MM t,db = Molecular mass of the gaseous stream in time interval t on a dry basis (kg dry gas / k

mol dry gas)

MM H2O = Molecular mass of H 2 O (kg H 2 O/kmol H 2 O)

And MM t,db is determined as follows:

MM t,db = Σ

K (v k,t,db x MM k )

Where;

MM t,db = Molecular mass of the gaseous stream in time interval t on a dry basis (kg dry gas /

kmol dry gas)

v k,t,db = Volumetric fraction of gas k in the gaseous stream in time interval t on a dry basis (m3

gas k / m3 dry gas)

MMk

= Molecular mass of gas k (kg / kmol)

k

= All gases contained in the gaseous stream (e.g. N 2 , CO 2 , O 2 , CO, H 2 , CH 4 , N 2 O, NO, NO 2 ,

SO 2 , SF 6 and PFCs)

The mass fraction of water in time interval t on a dry basis (m H2O,t,db ) can be determined using one of the

following two options.

Option 1: Measurement of the moisture content in gaseous stream

Option 2: Simplified calculation without any measurements of the moisture content

In this monitoring period, the generated biogas is sent to biogas gensets for electricity generation. Mass

fraction of H2O (m H2O,t,db ) in biogas fed to gensets was calculated from the measurement of (a) absolute

pressure of biogas and (b) Dew point temperature of biogas leaving dehumidity system, which were

measured by a pressure gauge (PS

‐ 005) and a digital meter (DM

‐ 001), respectively. Therefore, Option 1

is applied to calculate the moisture content in biogas stream that is fed to gensets.Srijaroen Palm Oil Wastewater Quality Starch Wastewater Treatment CDM Monitoring Report

Treatment Project in Krabi Province, Thailand

Page 37 of 40

Report Version 1.1: June 22, 2010 Option 1: Measurement of the moisture content

This option provides a procedure to determine the mass fraction of H2O in the gaseous stream from

measurements of the moisture content of the gas. The moisture content in the gaseous stream should

be measured according to the USEPA CF42 method 4 and then converted to the mass fraction of H2O in

the gaseous stream in time interval t on a dry basis (mH2O,t,db) as follows:

m H2O,t,db = [C H2O,t,db,n ]

. [10 6 ] x [ ρ t,db,n ]

Where;

m H2O,t,db = mass fraction of H2O in the gaseous stream in time interval t on a dry basis (kgH2O/kg dry gas)

C H2O,t,db,n = moisture content of gaseous stream, according to the USEPA CF42 method 4, at normal

conditions in time interval t (mg H 2 O/m 3 dry gas)

ρ t,db,n = density of the gaseous stream in time interval t on dry basis at normal conditions (kg dry

gas/m 3 dry gas)

Nevertheless, Srijaroen has been measuring the following parameters in the biogas stream that is

leaving the dehumidifying system;

(a) Absolute pressure of biogas stream (kPa)

(b) Dew point temperature of biogas stream (Degree C)

These monitored parameters can be theoretically used to estimate the mass fraction of H2O in the

gaseous stream in time interval t on a dry basis (mH2O,t,db) by using a psychometric calculation as

follows;

m H2O,t,db = Humidity Ratio = 0.622 x P dewpoint

. (P biogas – P dewpoint )

Partial pressure of H2O in vapor phase at dew point temperature can be determined by the following

equation;

P dewpoint = P

wet ‐ (P biogas

– P wet ) x (T dry

– T wet )

[1,555.56

– 0.722 x T

wet ]

Or

P dewpoint = P sat@T_dewpoint

Where;

P dewpoint = partial pressure of H2O in vapor phase at dew point temperature of biogas stream (kPa)

P biogas = absolute pressure of biogas stream (kPa)

P

wet = saturation pressure of H2O in vapor phase at wet

‐ bulb temperature of biogas stream (kPa)

T dry = dry

‐ bulb temperature of biogas stream (Degree C)

T

wet = wet

‐ bulb temperature of biogas stream (Degree C)

T dewpoint = dew point temperature of biogas stream (Degree C)Srijaroen Palm Oil Wastewater Quality Starch Wastewater Treatment CDM Monitoring Report

Treatment Project in Krabi Province, Thailand

Page 38 of 40

Report Version 1.1: June 22, 2010 P sat@T_dewpoint = saturation pressure of H2O in vapor phase at dew point temperature of biogas stream

(kPa), which is determined from a thermodynamics saturated water

‐ temperature table

Option 2: Simplified calculation without any measurements of the moisture content

This option does not require measuring the moisture content of the gas but provides a simple and

conservative approach to determine the absolute humidity of the gaseous stream. It is assumed that

the gas is saturated with H 2 O or that no H 2 O is in the gas, whichever is more conservative in the context

of the underlying methodology.

If it is conservative to assume that no H2O in vapor phase is in the gaseous stream, assume m H2O,t,db = 0.

If it is conservative to assume that the gaseous stream is saturated with H 2 O, determine m H2O,t,db as

follows:

m H2O,t,db,Sat =

. p H2O,t,Sat x MM H2O . (P

t – p H2O,t,Sat ) x MM t,db

Where:

m H2O,t,db,sat = Saturation absolute humidity in time interval tonne a dry basis (kg H 2 O/kg dry gas)

p H20,t,Sat = Saturation pressure of H 2 O at temperature T

t (Pa)

T

t = Temperature of the gaseous stream in time interval t (K)

P

t = Absolute pressure of the gaseous stream in time interval t (Pa)

MM H2O = Molecular mass of H 2 O (kg H 2 O/kmol H 2 O)

MM t,db = Molecular mass of the gaseous stream in a time interval t on a dry basis (kg dry gas /

kmol dry gas)

For the case of baseline emission calculation of this project, the most conservative value is to assumed

that m H2O,t,db,sat = [p H2O,t,Sat x MM H2O ]/[(P

t – p H2O,t,Sat ) x MM t,db ]. In the other hand, for project emission

calculation, it is conservative to assumed that m H2O,t,db,sat = 0.

The following equation should be used to convert the volumetric flow of the gaseous stream from actual

conditions to normal conditions of temperature and pressure:

V t,wb,n = V t,wb x [(273.15/T

t ) x (P

t /101325)]

The results of such a conversion are presented in the following tables.Srijaroen Palm Oil Wastewater Quality Starch Wastewater Treatment CDM Monitoring Report

Treatment Project in Krabi Province, Thailand

Page 39 of 40

Report Version 1.1: June 22, 2010 Conditions of biogas generated and utilized in the project

Monitored

Period Actual condition of biogas at biogas flow meters Ref.Condition at Normal

Condition

Biogas recovered

from Digester Biogas fed to Gen #1 Biogas fed to Gen #2 All meter

Temp.

(C ) Press.Abs

(Pa) Temp.

(C ) Press.Abs

(Pa) Temp.

(C ) Press.Abs

(Pa) Temp.

(C ) Press.Abs (Pa)

OCT 2009 34 106,030 31 114,471

‐  ‐ 21 101,325

NOV 2009 35 106,622 29 114,455

‐  ‐ 21 101,325

DEC 2009 37 106,196 32 114,549

‐  ‐ 0 {1} 101,325

JAN 2010 38 105,545 32 114,610 35 113,925 0 101,325

FEB 2010 41 105,330 35 114,650 34 113,375 0 101,325

MAR 2010 39 105,341 34 {2} 114,639 33 {2} 112,825 0 101,325

APR 2010 42 105,296 32 {2} 112,947 35 {2} 113,968 0 101,325

{1} Referent condition at normal condition of biogas flow meters was reset by its supplier on December 1, 2009

{2} Refers to data monitored and recorded in paperless system

Conversion of biogas flow rate from monitored values in normalized (Nm 3 ) to actual (m 3 ) cubic meter

Monitored

Period Monitored data of biogas flow rate in Nm 3 Conversion of biogas flow rate from Nm 3 to m 3

Biogas

recovered Biogas fed to

GEN#1 Biogas fed to

GEN#2 Biogas

recovered Biogas fed

to GEN#1 Biogas fed to

GEN#2

Nm 3

(wet basis) Nm 3

(wet basis) Nm 3

(wet basis) m 3

(wet basis) m 3

(wet basis) m 3

(wet basis)

OCT 2009 (126

, 023 ) { 3 }

117,026 {4} (118,634) { 3 }

110,164 {4} 0 125,620 108,610 0

NOV 2009 (329,504) { 3 }

305,980 {4} (307,878) { 3 }

285,898 {4} 0 327,900 280,203 0

DEC 2009 154,131 141,065 0 167,395 139,232 0

JAN 2010 162,115 157,628 2,763 177,361 152,176 2,772

FEB 2010 151,735 80,679 67,721 168,041 80,036 68,137

MAR 2010 304,420 {2} 58,097 {2} 233,839 {2} 328,467 57,602 235,606

APR 2010 288,860 {2} 172,912 {2} 108,938 {2} 312,375 174,322 100,856

{3} readings of biogas flow meters at referent condition of normal condition at 21 C and 101,325 Pa (USA standard)

{4} corrected readings of biogas flow meters at referent condition of normal condition at 0 C and 101,325 Pa

(Universal standard)Srijaroen Palm Oil Wastewater Quality Starch Wastewater Treatment CDM Monitoring Report

Treatment Project in Krabi Province, Thailand

Page 40 of 40

Report Version 1.1: June 22, 2010 Conversion of monitored CH4 content in biogas from dry to wet basis

Monitored

Period CH4 content in biogas fed to genset #1 and genset #2 (fv CH4,GENs )

Monitored values (fv CH4,GENs ) Calculated fv CH4,GENs used in baseline

calculation

(% dry basis) (% wet basis)

OCT 2009 64.9% 64.3%

NOV 2009 66.6% 66.0%

DEC 2009 65.0% 64.4%

JAN 2010 64.0% 63.4%

FEB 2010 64.2% 63.5%

MAR 2010 65.3% {1} 64.6%

APR 2010 65.8% {1} 65.1%

{1} Refers to data monitored and recorded in paperless system

Mass flow rate of CH4

Monitored

Period Density of CH4 at actual condition

ρ CH4, GEN #1 ρ CH4, GEN #2

(kg CH4/m 3 CH4) (kg CH4/m 3 CH4)

OCT 2009 0.724 0.0

NOV 2009 0.728 0.0

DEC 20091 0.723 0.0

JAN 2010 0.723 0.711

FEB 2010 0.720 0.710

MAR 2010 0.720 0.709

APR 2010 0.708 0.714