19 September, 2018

Establishment of the Performance
test for decentralized wastewater
treatment facilities in Indonesia
Center for Material Cycles and Waste
Management Research,National Institute for Environmental Studies

Dr. Yoshitaka Ebie

Background• Ministry of Environment and Forestry has issued neweffluent standard for domestic wastewater (2016).
• This new and stringent regulation for domestic
wastewater is a major step forward to improve water
environment.

Parameters

Unit

pH
BOD
CODTSS
Oil and Grease
Ammonia
Total Coliform
Discharge

mg/L
mg/L
mg/L
mg/L
mg/L
N/100 mL
L/person/dayOldRegulation
6-910010010-NewRegulation
6-93010030
5103,000100

2However, compliance to the regulation
may not be ensured.

Septic tanks

BiofilIPAL

Are they all reliable?

septic tank?

• BOD 30 mg/L
• NH4-N 10 mg/L
3

Manufacturers/providers can say…
Our productis very good!!

How good?

We can achieve
BOD: >10 mg/L
NH4-N: >1 mg/L
E. coli: freeGreat! But
is it true?

Nobody knows...
4

The Stakeholders Meeting inIndonesia
To tackle this urgent problem, we have launched “theStakeholders Meeting on domestic wastewatertreatment” in 2015.
Industry-AcademiaGovernment Collaboration

Central gov.

Manufacturers
Univ.
Local gov.

5

Summary of discussion• We need more manufacturers todistribute domestic wastewater
facilities in all Indonesia.
• However, it’s easy to make a profit
if manufacturers produce poor
performance and/or weak tanks.
To eliminate low quality treatment facilities from the market

Performance testing method and Reliablecertification system are required!!

6

Major standards in the world
European Standard (EN)EN12566-3: Small wastewater treatment systems for up to 50 PE

The United States
NSF/ANSI Standard 40: Residential Wastewater Treatment Systems
Australia
AS/NZS 1546 Part 3: Aerated wastewater treatment systems
Japan
Performance testing method for Johkasou

7Testing methods

PTesting
product

Domesticwastewater
1. Feed wastewater

Simple! But...

Sampler
2. Take a sample

8Major standardized testing method is
not necessarily suitable for Indonesia.
Climate28.7˚C

Jakarta
4030

Sep-2015

May-2015

Jan-2015

Sep-2014

Jan-2014

May-2014

Low

Sep-2013

High0

May-2013

Ave

10

Jan-2013

20

Diurnal inflow
pattern300

Influent volume (L)Temperature (˚C)

LifestyleSocialstructureWastewater quality
and quantity

250
200
150
100
50
0

4 11125 6 7
4 5 6 78 9
1 2
[ 93 101 8
2 9
3 101112
4 5 6 17 2
8 3
9 101112
1 2
3 101112
4 5 6 78]ampm Time
am

Time

9

Field investigation

Wastewater volume was measured every hour.
10Inflow pattern in Indonesia
25%
20%

Japan
This study (Indonesia)

15%
10%
5%
0%
4:00
5:00
6:00
7:00
8:00
9:00
10:00
11:00
12:00
13:00
14:00
15:00
16:00
17:00
18:00
19:00
20:00
21:00
22:00
23:00
0:00
1:00
2:00
3:00

proportion of wastewater30%

 Two peaks in a day (morning and evening) Starts 2-3 hours earlier than Japanese case
 No high peak which is due to bath tub

11

Development of the Performance Testing
Method in Indonesia

1st SHM

2nd SHM

3rd SHM

4th SHM

Precursor of SNI (NationalStandard of Indonesia)
5th SHM

Drafted based on the industryacademia-government
collaboration
12

Trial of the testing method
Objectives• To confirm availability of the equipment
for the test
• To confirm feasibility of the testingprocedure• To sort out the problem
Improve and revise the testing method!!
13Testing site

Bojongsoang WWTP

Gumuruh pump station

14

Trial of the testing method
16%

Hourly feedingprogram

14%
Influent

From the pumpstation

12%
10%
8%
6%
4%
2%
0%
3

Raw
wastewatertankWater quality

57

9 11 13 15 17 19 21 23 1
Time

Test product13 L/minCollect all effluent• Total water volume in a day• Average water quality in aday

15

Final goals• All the products in the market must have acertificate to improve water environment inIndonesia.
The certificate is based on the resultof performance test
 Treatment efficiency (Water quality) Robustness of the tank Material, design, Standard Operating
Procedure, workshop, etc.
16

When

Timing to take a test andto get certificate
Same design andmanufacturing processfrom the time of test.

Developmentof newproductTake atreatment
performance
test

Get
certificationof productsby type test

Manufacture
the productSell productsin the market

Before start manufacturing
product series

17

How

to use the certificate?

Building permission processes
Localgovernments

Application
Permission

Contractors/manufacturers*Require the certificateof the product*Submit application withthe certificate of theproductto confirm appropriatenessto prove appropriatenessCompliance to the regulation would be sure!!
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Step-wise implementation• At the beginning, enact the certification system
only for some area/buildings.
– Central government• shows first targets of this certification system
like “Sensitive area/tourist site, large building”– Local government• defines where is “Sensitive area/tourist site ”• defines size of the “large building”.

free vectors

Dario1crisafulli

free vector graphics

19Establishment of standardized performance testing

method for decentralized wastewater treatment facilityin Asian region and network building of its experts
Progress ofstandardization
 Capacity building of atesting body Qualification system forengineer• International WS (MOE)• WEPA (MOE)

Cambodia
VietnamThailand
Malaysia

Indonesia
Indonesian
test

Stakeholder’s meeting Raising awareness Drafting a testing method
 Considering strategies

Regional
standard

Testingmethods
in Asiancountries

Propose testing standard
in ASEAN countries

Characteristics ofbiological wastewater
treatment in eachcountry

Nation to region

Conclusions• Stringent effluent standard is a major step
forward to improve water environment.
• To ensure compliance to the regulation, we havedrafted Indonesian performance testing
method to evaluate domestic wastewater
treatment facilities.
• We are going to conduct trial of the testing
method to sort out the problem and solve it.
• These institutional approach would be helpful topromote appropriate domestic wastewater
facilities in ASEAN.
21