Full-scale test on domestic sewage treatment with combination aeration MBr integration equipment

Abstract

Use combination aeration membrane bioreactor for urban sewage processing, when influent COD_Cr, BOD₅, NH₃-N concentration ranged:53.15~978.50 mg/L, 28.23~431.55 mg/L, 4.14~37.78 mg/L, when the hydraulic retention time (HRT) for 4 h, 6 h, 8 h, COD_Cr, BOD₅ and NH₃-N the average removal efficiencies were: above 90%, above 95%, above 90%, the best HRT for 6 h. Stable effluent quality, its range was COD_Cr: 3.5~30 mg/L; BOD₅: below 5 mg/L; NH₃-N: below 5 mg/L, effluent quality is better than The Reuse of Urban Recycling Water-Water Quality Standard for Urban Miscellaneous Water Consumption(GB/T 18920-2002).