APPARATUS FOR BIOLOGICAL TREATMENT BY MEMBRANE SEPARATION

摘要

PROBLEM TO BE SOLVED: To provide an apparatus for biological treatment by membrane separation, which keeps the property of activated sludge in a biological reaction vessel in a satisfactory state, prevents the soiling and clogging of membrane surface, enables the stable operation and is excellent in membrane treatment performance and biological treatment performance. SOLUTION: This apparatus for biological treatment by membrane separation is featured in that a membrane element 2, a nonwoven fabric element 3 or a float type pump 17 for discharging supernatant outside the system are disposed in the biological reaction vessel 1.