| 摘要 |
PROBLEM TO BE SOLVED: To provide a simple and economical method for treating an organic waste water capable of reducing the generated amount of an excessive sludge widely by a simple method, without deteriorating the quality of treated water in the final stage, to obtain a bactericide used for the above method, and to provide a method of the sterilization of an active sludge by using the same agent. SOLUTION: This bactericide for an activated sludge consists of at least one kind compound selected from among cationic surfactant, an amphoteric surfactant, chlorinated compounds, polyamines, aliphatic amines, phenols, nitrofurans, compounds having a trichloroalkylthio group, dithiocarbamates, aldehydes, alcohols, a protease, a glucanase, an amylase, magnesium monoperoxyphthalate as a main component, and the method of a sterilization by using the same and the method for treating an organic waste water, are also provided. |
