遺伝子解析技術の活性汚泥微生物への適用: 微生物活性剤による排水処理施設の水質改善

摘要

活性汚泥微生物は多くの種類のバクテリア，菌類，原生動物，後生動物が共生する複合微生物系を形成している．この多様性が活性汚泥法の処理の安定性，あるいは高度な処理性を維持するためにきわめて重要な役割を担っている．一方で，この複合生物系のバランスが壊れると処理水質の悪化や汚泥の沈降性不良を引き起こす原因となることが推測できる．%Bio supplements are high-performance new water treatment chemicals that were developed to modify and improve activated sludge properties. Bio supplements are chemicals that contain essential nutrients and biological activators in order for activating aeration tank microbes. The bio supplements when thrown into the aeration tank can improve water quality and increase treatment capability by stabilizing the properties of activated sludge. It can also improve filtration characteristics and its performance of membrane separation activated sludge. This paper introduces the results of investigation of changes in activated sludge microbes caused by the latest genetic engineering, and the outline of bio supplement and its usage and usage examples.