Wastewater Treatment Engineering

Wastewater treatment refers to the process of removing or transforming suspended solids, organic pollutants, nitrogen and phosphorus nutrients, heavy metals, pathogenic microorganisms, and other harmful substances from domestic wastewater, industrial wastewater, agricultural drainage, and municipal sewage through physical, chemical, biological, and advanced treatment technologies, so that the water quality meets the requirements for discharge, reuse, or resource utilization. Common processes include screening, sedimentation, air flotation, coagulation, activated sludge treatment, biofilm treatment, membrane separation, advanced oxidation, disinfection, and sludge treatment. Wastewater treatment is widely used in municipal wastewater treatment plants, industrial parks, chemical, food, pharmaceutical, printing and dyeing, aquaculture, mining, and rural domestic sewage treatment scenarios. It is an important infrastructure project for water environmental protection, water conservation, emission reduction, and green development.