About HORIO AKIHIRO
About 環境浄化技術
About mineral fiber
About water closet wastes disposal plant
About treated sewage
About water quality
About solid-liquid separation
About BOD
About transparency
About suspended solids
About turbidity(ratio)
About basalt
About suspension(hanging)
About aeration
About biofilm
About Rotatoria
About oscillation
About water quality test
About improvement
About adhesion(surface chemistry)
About suspended particle
About BOD removal
About sewage treatment
About basalt fiber
About improving water quality
About contact filtration bed process
About Water supply,drainage and sanitary equipment in buildings
About Other fiber manufacturing and yarn processing
About Physical treatment of sewage and wastewater
About 浄化槽
About 動向
About 新素材
About 活用
About 処理水
About 水質