About TAKAHASHI TOSHIYUKI
About アグリバイオ
About aquatic plant
About algae
About Paramecium
About granular material
About nutritive salt
About ammonia nitrogen
About ammonium ion
About ability
About sewage treatment
About concentration(ratio)
About ratio
About removal
About denitrification
About improvement of efficiency
About Chlorella vulgaris
About ammonium removal
About beads
About microalgae
About Paramecium bursaria
About absorptive capacity
About symbiotic algae
About persistence
About Biological nitrogen removal
About nitrogen concentration
About microalgae
About Chemical treatment of sewage and wastewater
About Biological treatment of sewage and wastewater
About Seaweeds
About 微細藻類
About カプセル
About 廃棄
About 窒素
About 有用物質