Treatment of Corn Starch Production Wastewater by UASB-A/O Process

The UASB-A/O process was used to treat corn starch production wastewater.The running results indicate that the removal rates of COD and NH3-N are 99.6% and 98% respectively.The system operates steadily with the effluent quality reaching the special protective region criteria specified in the Comprehensive Discharge Standard of Water Pollutants along the Line in Shandong Section of South to North Water Diversion Project(DB 37/599-2006).