| abstract |
(57) [Summary] [Problem] A simple and economical treatment of organic wastewater that can greatly reduce the amount of excess sludge generated by a simple method without deteriorating the quality of treated water in the final stage. A method, a disinfectant for activated sludge used in the method, and a method for disinfecting activated sludge using the same. SOLUTION: Cationic surfactants, amphoteric surfactants, chlorine compounds, polyamines, aliphatic amines, phenols, nitrofurans, compounds having a trichloroalkylthio group, dithiocarbamates, aldehydes, alcohols Activated sludge disinfectant containing at least one compound selected from magnesium, protease, glucanase, amylase and magnesium monoperoxyphthalate, a method for disinfecting activated sludge using the same, and a method for treating organic wastewater. |