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장성호,이덕생,김수생 동아대학교 환경문제연구소 1995 硏究報告 Vol.18 No.2
In this research, the optimum LFG pilot plant of extraction, purification, and application are selected by economic analysis, constructed and operated for the development of the standard LFG utilizing process process proper to domestic landfill. LFG recovery pilot plant was constructed at the base of the result of optimized design and economic evaluation performed at S,D landfill(landfil1 area : 514,345m², landfill depth : 23-39m, landfill MSW amount : 12,808,317m³, landfill period : 87.6-93.5) in Pusan. It was consisted of four extraction well(two extraction well with 18.5m depth, two extraction well with 10m depth), collection head with 160m length, scrubber with capacity 14m³/min as purification process, and flare stack as burning facilities. And monitoring well was set at 30, 50, 70, 90m far from extraction well for the estimation of influence radius. The following experiments were performed using the predeveloped LFG reconvery pilot plant. First, LFG generation amount and generation rate were estemated from the atom analysis of municipal solid waster in S,D landfill. Second, real LFG extraction rate of some 0-10㎥/min was obtanied from operating of LFG recovery process. Third, influence radius was estimated 85-100m according to varying 407㎥/min extraction rate. Fourth, composition of LFG was detected in extraction well and the before and after of purification process.