MEMBRANE SEPARATION BIOLOGICAL TREATMENT APPARATUS

摘要

PROBLEM TO BE SOLVED: To transfer sludge and clean a surface of a membrane by a small power.

SOLUTION: A membrane separation biological treatment apparatus includes: a storage tank; a pump; and an ejector. The storage tank includes microorganisms for biologically treating an organic matter in the drainage water and a membrane for separating the drainage water into treated water and sludge, therein. The pump generates water stream in a cross flow manner relative to a membrane surface. The ejector is installed on the discharge side of the pump to suction a gas and to mix the gas into the water stream generated by the pump.

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