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The Fukuoka MethodSemi-aerobic Landfill Type
10/Feb/2010. Environment Bureau, Fukuoka Municipal Gov.
Landfill Type Anaerobic landfill
Semi-aerobic landfill
Aerobic landfill
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Leachate collection pipe
Gas ventingpipe
End of the Pipe is Always Open to the Air
Structure of Semi-aerobic Landfill Type (Fukuoka Method)
Leachate is collected in a leachatecollection pond through perforated pipeembedded in graded boulders.
As the outlet of main leachate collectionpipe is always open to air , fresh air isdown into the layers thereby introducingan aerobic condition around the pipes.
Leachate means the waste water
outlet
Perforated pipe and protection rocks / case example in Samoa
Landfill
Gas Venting Pipe
Aerobic Microbial Degradation
Generatedheat of 50 70
Rain
CO2 CO2 CO2 CO2 CO2 CO2CO2
Function of Semi-aerobic Landfill Type (Fukuoka Method)
Leachate adjustment pond
Treatment Facility
Air
O2 O2 O2O2
Le ac ha te Le ac ha te LeachateLeachate
Leachate
Perforated Leachate Collection Pipe
Through perforated pipes,
1. Leachate is quickly removed,
2. and fresh air is blown into the waste by using convection currentof fermentation heat.
End of the pipealways need to beopen to the air
Change of the water quality (BOD consistency)
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t tashirotakeo, 2010/02/09
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1. Low degree of technical demand and machines anddevices, and ease of operation and maintenance.
2. Decrease in the load of waste watercontamination by the quick drainage of waste water.
Advantages of the Fukuoka Method
3. Contribution to the prevention of Global Warmingby control of the discharge of methane gas
4. Early stabilization of landfill ground by promotingwaste bio-degradation.
5. Wider alternatives of material for construction andlower cost of the construction.
After land use
Since decomposition isfast, the landfill whichusing Fukuoka Methodcan be used for anotherpurpose after landfill inshort period.
Imazu athletic park
School for handicapped children Imazu farming park
Weifang City
/ China
Improvement of landfill in foreign countries
Islamic Republicof Iran
Samoa
Mala sia
Examples of using local materials
Bamboo and waste tire forLeachate collection pipe .
Waste drum for gas venting pipe
China Mexico
Leachate treatment in Samoa
Simplified leachate treatment systemcombined with biological and filteringtreatment has been set.
Improved water after one month operation Aerator Circulation column with trickling filter
Leachate treatment in Samoa
Filter bed using coral tip andcoconut husk activated carbon
Hydrophytes in the compact wetlandabsorb Nitrogen and Phosphorus
Locally available coral tip for filter andporous lava rocks for bacteria bed
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Thank you