嫌気性処理を組み込んだ下水の高度処理に関する実験的研究

概要

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In this study, an UASB (Upflow anaerobic sludge blanket) reactor was applied to realize economical municipal wastewater treatment. To overcome its disadvantages, anoxic and aerobic reactors were combined as the polishing step for organics as well as nutrients such as nitrogen and phosphorus. The wastewater treated was taken from a combined sewer system in Fukui City, Japan. The experimental results showed that the lab-scale UASB reactor works like a SS removal filter, and causes occasional vast release of SS accumulated in the reactor. Nitrogen was removed by the biological anoxic-aerobic process, and phosphorus was removed as iron phosphate using an iron net submerged in the aerobic reactor. The polishing step was successful for achieving excellent effluent quality with minimum maintenance.
福井工業大学の論文