An Experimental Study on the Treatment of Corn Processing Wastewater by Membrane Bioreactor

The treatment of corn processing wastewater by membrane bioreactor was studied in this paper. The results showed that CODCr and NH3-N were eliminated efficiently by single-stage aeration MBR. The average concentrations of CODCr and NH3-N in the effluent were 53.1 and 1.29 mg/L, and the removal efficiency were 92.9% and 93.0Subscript text% respectively. But the removal efficiencies of TN and TP were limited, as 46.7% of TN and 41.6% of TP were removed. The subsequent processes (coagulation,reverse osmosis,etc.) may be needed to achieve the goal of water reuse.