Different Wastewater and Wastewater Treatment Methods

With the rapid development of industrial technology in China, ecological environmental issues have become increasingly serious. It's not just air pollution that needs attention, but also water pollution. What are the key treatment processes? What types of wastewater are mainly treated? And what wastewater treatment methods are available?

1. Industrial Wastewater Treatment

Various industries can impact water sources to varying degrees. During industrial production, a large volume of industrial wastewater is generated, especially in chemical factories. During the production and manufacturing process, these factories produce water containing various nutrients or chemicals. If discharged directly into the natural environment without treatment, it could cause severe damage to the ecological environment. Treatment methods for this type of wastewater include: sedimentation, filtration, reverse osmosis, flotation, centrifugation, evaporation, and more.

2. Domestic Sewage Treatment

People rely heavily on water in daily life, and after using water, large amounts of domestic sewage are produced. This sewage includes water used for washing dishes with detergent and human waste (feces and urine). If this water is discharged into the environment without treatment, it might not cause the same severe damage as industrial wastewater, but the detergents used in daily life can still seriously affect water quality. Treatment methods for this type of wastewater include: neutralization, coagulation, reduction, etc.

3. Municipal Sewage Treatment

Municipal sewage refers to wastewater that combines domestic sewage, industrial wastewater, and rainwater, which all flow into the municipal sewage system. Effective treatment is necessary for municipal sewage because the municipal infrastructure includes a vast network of sewers. These sewers are used not only to discharge domestic sewage but also to discharge rainwater. Therefore, municipal sewage treatment must be given significant attention, and suitable methods must be used for treatment. Treatment methods for this type of sewage include: activated sludge, biofilm, etc.

4. Comprehensive Water Environment Management

To effectively treat various types of wastewater, it's not enough to simply treat different kinds of sewage and wastewater; comprehensive water environment management is also required. The entire water environment directly impacts all life on Earth. Therefore, polluted water bodies need focused management, and different water bodies must be treated using different methods. Treatment methods for this type of wastewater include: coagulation, neutralization, adsorption, redox, etc.