Thailand-Japan Environmental Solutions
Weekin Bangkok, 16, January, 2020

Generation of Electricity and Compressed
Biomethane Gas (CBG) from Organic
Fraction of Municipal Solid Waste(OFMSW) using Dry Fermentation
Technology

Center of Biomass Garbage Management
Complete Cycle
Chiang Mai University

MSW input 30 tons/d (8 hr/d) since January 2018
DESIGN VALUES:
 Reduce waste disposal cost 2,500,000 THB/yr
 Produce electricity 240 kWh/d or 320,000
THBTHB/yr Produce CBG 420 kg/d or 2,300,000 THB/yr
 Produce soil conditioner 3 tons/day or 990
tons/yr Recycle waste 12 tons/d or 3,960 tons/yr
 Reduce waste to land fill > 90 % or 8,900 tons/yrOperation
 Technician 2 person
 Manager 1 person
 Labor 8 persons
Working 8 hr/dSOURCE

Sorting at the sourceby organization
Sell

Recycle waste
Garbage bank

General/OfficeGeneral waste

to the collection point

Transform to energy

Food waste

Food waste bin

Transform to biogas

GreaseGrease bin

Transform to biodiesel

Wood / Tree Branches

to the collection point

Transform toenergy/soil condition

Mixed in general waste

to the collection point

Collected for disposal
by outsource

Hazardous wasteCollected for disposal byoutsource

ToiletInfectious waste

to the garbage
collection point

Burned in infectious
waste incinerator

Construction area

Construction material

to the collection point

To landfill

Canteen / kitchen

yard

Laboratory

OFMSW(biodegradble)

General waste

Soil conditioner

biogas

SourceDepartment
institution
dormitory
Generalwaste
12-15
tons/d(5 tons/hrmax.)

Sorting at
the source

RecyclewasteGeneralBy
organization

Recycling
CenterCBG 400 kg/d
(VAN 10-14 car/d)

EnergySell
Garbagebankcollection point

For Car & Kitchen
Sorting & transfer
to Energy

DRY WASTEGENSETOFMSW (non biodegradble)
Plastic recycle

Clean & Dryส่วนผสม

RDF-3

Plastic pellet

Asphalt
4 kgplastic/ton Asphalt Concrete ,0.5 kg plastic per m2 ( 5 cm)

BrickCover Lagoon

Sorting Plant

Dry ADPlant

Electricity
150 kWh/d

MSW
30 t/dMetal
0.15 t/d

Recyclable
0.6 t/d

HAZARDOUSWASTE 0.15 t/d

OFMSW
11.85 t/d

Washing water
5.0 m3/d
GLASS
0.9 t/dlandfill
6.0 t/d

BIOGAS
900 m3/d

WW 3.0 m3/d

Excess Sludge
7.85m3/d

RDF
9.6 t/dSoil Conditioner
3.0 t/dTreated WW
8.0 m3/d

CBG 420 kg/d

MSW30 t/d

HAZARDOUSWASTE 0.15 t/dSell Waste
0.6 t/dMetal
0.15 t/d

OFMSW
11.85 t/d
Washing water
5.0 m3/d

GLASS
0.9 t/dlandfill
6.0 t/dRDF
9.6 t/dElectricity
150 kWh/d

ReactorVolume900 m3OFMSW
11.85 t/d
Washing water
5.0 m3/d

BIOGAS
900 m3/dWW
3.0 m3/d

Excess Sludge
7.85m3/d
Soil Conditioner
3.0 t/dTreated WW
8.0 m3/d

CBG 420 kg/d

Benefits of Dry Fermentation Technology• Dry process (no need to add water)• Plug flow and non clog• Handle solid input up to 30%• Compact size
• No floating impurity and sediments• Low operating cost

12

AD Mixer

13

Discharge Pump
 Non clog
 Accept waste size < 60 mm
 Economic Robust
 Simple O&M

14By-products

Dry AD Tank

Solid digestate
21Genset BuilingGenset 20 kWEnd of presentation
Contact:ERDI-CMU
www.erdi.cmu.ac.th
T: +6653-942-007
Dr. Pruk Aggarangsi, Director
E: pruk.a@cmu.ac.th
Papop Co., Ltd.
www.papop.com
Tel: +66 570 5580
Dr. Apipong Lamsam, MD
E: sales@papop.com,apipong.l@papop.com
LINE: @papop