TREATING DEVICE FOR ORGANIC SEWAGE AND ITS ASSEMBLY METHOD

摘要

PROBLEM TO BE SOLVED: To provide a treating device for organic sewage which is simple in construction, allows the execution of installation work in a short period and is particularly adequately usable for a small-scale sewage treatment plant, etc. SOLUTION: A first treating vessel A which has a sewage storage tank A1 and screenings or the like storage tank A1 for separating screenings from the raw water flowing into the sewage treatment plant and discretely storing the sewage and the screenings and a second treating vessel B which has a biological treatment reaction chamber B1 consisting of an endless circumferential water cannel disposed with a membrane separation unit 9 and a waste water control tank B2 disposed with a water level control means 12 capable of arbitrarily adjusting the position of an open water surface are independently arranged. The first treating vessel A and the second treating vessel B are connected via a sewage supply pipe 7 and an excess sludge withdrawal pipe 8.