The characteristics and trend of pollutants were characterized by monitoring the water quality of effluent from wangtang wastewater treatment plant in a long-term. Since the tail water of wastewater treatment plant could not achieve the water quality standard for scenic environment use stably, modified two-stage biological contact oxidation was used to treat the effluent of wastewater treatment plant .
Continuous-flow biofilm formation method was used in the experiment. Results showed that the period of...