Three-phase biological process for treatment of monosodium glutamate wastewater and beverage wastewater

Based on the characteristics of good complementarity between the quality of monosodium glutamate wastewater and beverage wastewater, the mix of the two types of wastewater is consider to decrease the concentration of organic pollutants in monosodium glutamate wastewater and improve the biodegradation of beverage wastewater. A three-phase combination process of hydrolyzation-aerobic-biological carbon treatment was used to treat the mixed wastewater. The two-year running results showed that the water quality of effluent could meet the standard of GB 8978 - 1996 (Grade 1), even if the water of influent having high concentration of organic pollutants and ammonia nitrogen, the degradation rates of COD and BOD were over 99% simultaneously, and that of ammonia was over 96% .