Characteristics of
Municipal Wastewater
The quality of municipal wastewater is relatively stable, but the water volume fluctuates greatly. Due to the residential water peak period, it is often in the low load operation mode, and some water quality will have low influent COD and insufficient carbon source. In addition, for projects where rainwater and sewage are not diverted, the water volume affected by weather conditions will increase sharply, and the lack of nutrients in the water will lead to sludge loss.
Most of the park’s wastewater is directly discharged by enterprises or reaches the discharge standard after treatment by enterprises. Its quality changes greatly, and the inffluent water volume is greatly affected by the production and drainage cycle of enterprises. In general, there are many refractory substances in the water, the composition is complex, the biodegradability is poor, and the requirements for the impact load resistance of the system are high.
