High concentration oxganic effluent treatment composite process and its equipment

A combined technology and apparatus for treating high-concentration organic sewage features that the UASB reactor and aerobic pool are serially communicated in A/O mode. Said technology includes pretreating the sewage by grate and depositing pool for removing suspended substance, removing C and N in UASB reactor, aerobic oxidizing in active sludge area of aerobic pool, filtering in the membrane separation area of aerobic pool, pumping out the treated water, mud-water separation in rear deposition pool, returning supernatant back to UASB reactor, and returning mud back to said active sludge area.