About KARASAWA IKUKO
About 小島昭研
About YAMADA SUSUMU
About 石井商事
About FUJISHIGE MASAO
About KOJIMA AKIRA
About 小島昭研
About lake pollution
About water purification
About Eutrophication
About dephosphorizing
About carbon fiber
About Iron
About chemical equipment
About in-place test
About Water Pollution
About removal
About water quality purification
About phosphorus elimination
About device structure
About electrochemical device
About field experiment
About introduction of case
About Lake pollution
About Water quality control
About Chemical treatment of sewage and wastewater
About 鉄
About 炭素繊維
About 浄化