To provide a membrane separation activated sludge treatment apparatus which is capable of remarkably improving the filtration efficiency, which is capable of restraining the filtration membrane damages and contamination, and which has a favorable wastewater treatment efficiency.
The membrane separation activated sludge treatment apparatus includes: a biological treatment part which generates mixed water by mixing coagulated sludge body generated by means of biological coagulation means which biologically coagulates activated sludge to generate a coagulated sludge body with wastewater, and obtains sludge containing biological treatment water by biologically treating the mixed water; and a purified treatment water generation part which has a membrane unit carrying out membrane filtration and obtains purified treatment water, which is permeated water, from the sludge containing biological treatment water by membrane filtration.
COPYRIGHT: (C)2010,JPO&INPIT
Masahiko Miura
Shin-ichi Nonaka
Yoshiro Takamura
Yamamoto Wara
Yukihiro Ogino
Mitsushige Shimada
Hiroaki Nakatani
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