回分式活性汚泥法による埋立地浸出水中の窒素ならびに難分解性有機物の除去

概要

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Laboratory scale experiments on aerobic/anaerobic operations of the sequencing batch reactor (SBR) activated sludge processes were conducted. The aim of these experiments was removal of nitrogen and refractory organic compounds in municipal landfill leachate by adding methanol as a hydrogen donor. NH<SUB>4</SUB>-N concentrations in leachate ranged from 100 mg/l to 200 mg/l. A high concentration of refractory organic compounds (100 mg/l to 150 mg/l as COD) was observed in the leachate. 95% or more nitrogen removal was achieved in the operation with an optimum length of aerobic and anoxic/anaerobic period for nitricicationdenitriofication process. About 50% removal for refractory organic compounds was achieved by the SBR activated sludge process with the combination of oaonation as pretreatment.
一般社団法人廃棄物資源循環学会の論文