About SHIRAKAWA YURIE
About 公益財団法人日本環境整備教育センター
About NOMURA MUNEHIRO
About 東北大学大学院工学研究科
About TAKAHASHI NAOKI
About 公益社団法人宮城県生活環境事業協会
About TANAKA NOBUYUKI
About 東北大学大学院工学研究科
About NISHIMURA OSAMU
About 東北大学大学院工学研究科
About 日本水処理生物学会誌
About activated sludge
About fauna
About microscopy
About waste water treatment
About dissolved oxygen
About concentration(ratio)
About biological indicator
About amoeba
About Mastigophora
About activated sludge process
About concentration of dissolved oxygen
About Sludge Bioindicator
About Dissolved Oxygen
About Microfauna
About Surface/Volume Ratio
About Biological treatment of sewage and wastewater
About Population ecology
About 活性汚泥
About 溶存酸素濃度