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Experimental Research on Schoolyard Domestic Sewage by MBR

The submerged membrane bioreactor (MBR) was used to treat schoolyard domestic sewage. The impact of DO、pH and HRT to the removal effect of COD and NH3-N were studied. The results show that when DO=2.5 mg/L, pH=6.5~8.0, HRT=8 h, the removal effect of COD and NH3-N is above 96% and 88%, which can meet the China Water Quality Standard for Urban Miscellaneous Water Consumption (GB/T 18920-2002).