| Project/Area Number |
04041098
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| Research Category |
Grant-in-Aid for international Scientific Research
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| Allocation Type | Single-year Grants |
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| Section | Field Research |
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| Research Institution | Fukuoka University |
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Principal Investigator |
MATSUFUJI Yasushi Fukuoka University. Associate Professor, 工学部, 助教授 (40078663)
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| Co-Investigator(Kenkyū-buntansha) |
ROSLI Bin Hashim MPSP Malaysia. Engineer, プライ市・環境部, 技師
ABDUL Nasir マレイシア国住宅地方政府省, 技術部, 主任技師
TANAKA Ayako Fukuoka University. Researcher, 工学部, 助手 (10131830)
YANASE Ryuji Fukuoka University. Researcher, 工学部, 助手 (20131849)
SHIMAOKA Takayuki Fukuoka University. Associate Professor, 工学部, 助教授 (80202109)
HANASHIMA Masataka Fukuoka University. Professor, 工学部, 教授 (70078624)
ABDUL Nasir Abdul Aziz Ministry of Housing and Local Government, Malaysia. Chief Engineer
ZAMAN Huri Z マレイシア国住宅地方政府省, 地方政府総局技術部, 主任
ZAINUDDIN bi マレイシア国住宅地方政府省, 地方政府総局技術部, 課長
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| Project Period (FY) |
1992 – 1993
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| Project Status |
Completed (Fiscal Year 1993)
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| Budget Amount *help |
¥6,500,000 (Direct Cost: ¥6,500,000)
Fiscal Year 1993: ¥3,000,000 (Direct Cost: ¥3,000,000)
Fiscal Year 1992: ¥3,500,000 (Direct Cost: ¥3,500,000)
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| Keywords | Solid Waste / Landfill Site / Recirculatory Semiaerobic Landfill / Leachate / Sanitary Landfill / Biogas / Landfill Type / Malaysia |
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| Research Abstract |
As the results of this case study, we have developed another low-cost new landfill type which improves each function of the semi-aerobic landfill type. This is the so-called "Recirculatory Semi-aerobic Landfill Type" which is equipped with a leachate recirculation system. Main functions of this type are ;
(1)To decrease the amount of leachate
(2)To enhance the decomposition of waste
(3)To improve the leachate quality
This type of landfill serves to enhance the decomposition of waste and to improve the leachate quality through the introduction of air into the landfill site by means of leachate recirculation.
Results of the field experiments for the recirculatory semi-aerobic landfill type in Malaysia show that initial COD_<Mn> concentrations of 5,200 mg/l decreased to 845 mg/l and NH^+_N of 1,440 mg/l decreased to 550 mg/l.
From these results, it is shown that the recirculatory semi-aerobic landfill type improves leachate quality in practical use. Fig.1 shows a low cost system using the first Recirculatory Semi-aerobic Landfill type in Malaysia designed by the author. Based on the analysis of leachate quality from the landfill site, it was shown that this system performed well in Malaysia. Recently, the Malaysian Government has been using this system with a simple leachate physical treatment in the design of landfills based on our concept of "Landfill Type".
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