Industrial wastewater treatment equipment wastewater refers to the wastewater, sewage, and waste liquid generated in the industrial production process, which contains industrial production materials, intermediate products, and products that are lost with water, as well as pollutants generated during the production process.

Domestic sewage treatment is the sewage generated in human daily life. It has a wide range of sources and requires more types of organic matter to be treated. It usually includes several types of kitchen wastewater, washing wastewater, and discharge wastewater, and their treatment requirements are very high. At present, water resources are scarce in many places. Therefore, after some sewage treatment, many water resources will be recycled and reused.

With the development of medical industry, the treatment of hospital wastewater has become an important environmental issue. Medical wastewater often contains a large amount of biological and chemical pollutants, and if not effectively treated, it will cause serious harm to the ecological environment. Therefore, developing efficient medical wastewater treatment equipment is crucial.

The food industry has a wide range of raw materials and a wide variety of products, with significant differences in the amount and quality of wastewater discharged. Therefore, the wastewater generated during the production process needs to undergo a series of treatments to ensure that it does not damage the natural environment.

High salt wastewater refers to wastewater containing organic matter and at least total dissolved solids (TDS) with a mass fraction greater than 3.5%. Due to the presence of organic pollutants and a large amount of soluble inorganic salts such as Cl -, Na+, SO42-, Ca2+, etc. in such wastewater. So, this type of wastewater is generally the limit of biochemical treatment.

During the process of landfill, various metabolic substances are generated due to anaerobic fermentation, organic matter decomposition, and rainwater leaching, resulting in the formation of high concentration organic waste liquid, namely landfill leachate.