About YAMAGUCHI TOKUO
About 佐賀市 上下水道局 下水浄化セ
About 日本水環境学会シンポジウム講演集
About sea area
About port (harbor)
About culture (fisheries)
About sewage treatment
About treated sewage
About optimization
About ammonia nitrogen
About laver culture
About Ariake Bay
About modification
About Biological treatment of sewage and wastewater
About Physical treatment of sewage and wastewater
About Aquaculture in general
About 海苔養殖
About 下水処理