Imazu Sports Park (a Tennis courts completed landfill site) · 2020. 1. 8. · Sports park Example...
Transcript of Imazu Sports Park (a Tennis courts completed landfill site) · 2020. 1. 8. · Sports park Example...
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Imazu Sports Park (a completed landfill site)
Tennis courts
Imazu School for Handicapped Children
Imazu “Refresh” Farm
Fukuoka City Environmental Bureau
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Fukuoka City Landfills
East(Fushitani)Landfill
West(Nakata)Landfill
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East (Fushitani)Landfill
・・・Landfillboundarybou da y
Total area: Approx. 644,000㎡Filled area :Approx. 225,000㎡
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Capacity : Approx. 3.74 million t (3.4 million ㎥)Time duration :Since April 1988
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Hisayama Grounds Golf Course, created in Zone 1 of the completed landfill
Area of former landfill site:13 000㎡
23 Oct 2009
Area of former landfill site:13,000㎡8 holes (240m)×2 coursesBeginning of service:August 2007
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West(Nakata)landfill
Grounds (Total area)
Landfill zone (Filled area)
Grounds (Total area)
Total area :380,000㎡Filled area:
Capacity:(As of late March 2009 655 000 t (~28%filled )
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180,000㎡
2,380,000 t (1.8 million m3)
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(As of late March 2009, 655,000 t (~28%filled )Time duration:~20 years since 1996
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March 2007
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August 2007
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October 2009
Gas vent
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Opening of the leachate collection & drainagepipe
Construction of leachate collection & drainage pipe
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Solid Waste Retaining Structure
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Development of the Fukuoka Method(Semi-Aerobic Landfill Structure)
Fukuoka City’s landfill around 1970(Hatta Landfill )Until the 1960~70s、Japan, like many other Asian countries today, used anaerobic landfills
Lead to environmental problems such as toxic leachate and foul odor
The start of experiments to improve landfills, aiming to purify leachate
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Experiments by Fukuoka City and Fukuoka UniversityAn Test Plant was constructed at Hisayama Landfill in 1973Left: Aerobic landfill experiment Right: Improved anaerobic landfill experimentLeft: Aerobic landfill experiment, Right: Improved anaerobic landfill experiment
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Impact of Fukuoka Method: Leachate Treatment
Anaerobic landfill
90% decomposed
Semi-aerobic landfill
Anaerobic Aerobic99.9% decomposed
Semi-aerobic landfill
Aerobic landfill
Passage of time (years)
Improvement over time of the landfill structure and leachate’s biological oxygen demand (BOD) (combusible waste)
Passage of time (years)
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There are essentially 3 landfill methodsThere are essentially 3 landfill methods
①Anaerobic
Waste• High emissions of harmful substances such as CO2, methane, etc
• Waste is in a leachate state
②Aerobic (Cross-section)• Relatively less emission of harmful substances such as CO2, methane, etc
Waste • Easy treatment of leachate• High cost of construction and maintenance
Fukuoka Method③Semi-aerobic (Cross-section)
• Relatively less emission of harmful substances such as CO2, methane,
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etc• Easy treatment of leachate• Low construction and maintenance costs
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Fukuoka Method(Semi-aerobic landfill method structure)Diagram
Waste decomposition Temperature gap between landfill interior/exteriorFermentation heat
15Air circulation
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Advantages of the Fukuoka Method
The Fukuoka Method:
An efficient landfill method (=Semi-aerobic landfillAn efficient landfill method (=Semi-aerobic landfill structure) with low environmental impact developed jointly by Fukuoka City and Fukuoka University
Key aspects
1 Advanced technology unnecessary
2 Low cost2 Low cost
3 Environmentally friendly
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Construction of Fukuoka Method Landfill Fukuoka City
新蒲田埋立場
The first landfill in Japan to use the semi-aerobic landfill structureShinkamata Landfill (1975)
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全景Sports park
Example of utilization of a completed landfill site
Farmland
School for
Refresh farm Waste water treatment plant
handicappedchildren
Post-landfill Site Utilization-Imazu Sports Park-
Zuibaiji River
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Imazu landfill – Images from period of landfill construction pe od o a d co st uct o(1975~1999)
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Imazu Today: Utilization of a Former Fukuoka Method Landfill Site
T i t ソフトボール場I S h l fTennis court Imazu School for
Handicapped Children
Imazu Refresh Farm
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International Cooperation
Pakistan Waste Treatment Technology Training
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People’s Republic of China:Landfill in Weifang City, Shandong Province
O t b 2003Landfill area 64,000m2Capacity ~1.16 million m3Time duration ~3 yearsDaily waste intake ~700t
October 2003
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23Sept 2004
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Fukuoka City/Hakata Bay west coast zoneFukuoka City/Hakata Bay west coast zone