An ozone-based advanced oxidation process is taken to treat with the refractory effluent that comes from a kitchen anaerobic digestion membrane bioreactor(MBR)and is difficult to be degraded by bio route.The influences of pH value,oxygen flow rate,reactor pressure,and H2O2 dosage on the treatment effect of the refractory effluent are investigated.Experimental results show that the content of COD(chemical oxygen demand)in treated effluent decreases with increasing pH value,reactor pressure,and H2O2 dosage.The best treatment performance is achieved when pH is 7.8,oxygen flow rate is 1 L·min-1,and H2O2 dosage is 2 mL.COD content in effluent reduces to 19.7 mg·L-1 and the removal rate of COD reaches 84.31％.This treatment result meets the Class A standard(COD≤50 mg COD)of China's"Discharge Standards of Pollutants for Municipal Wastewater Treatment Plants"(DB 11/890-2012).
anaerobic digestion effluent of kitchendeep treatmentO3/H2O2catalytic ozonation
维普
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