Anaerobic treatment of wastewater is a kind of treatment process using microorganisms under anoxic conditions. In this way, microorganisms decompose organic matter in wastewater without oxygen. In this process, the generated redox reaction can cause sludge precipitation, thus realizing the removal of wastewater. This treatment method is widely used in sewage treatment and biomass energy production.

By anaerobic treatment of wastewater, organic matter in wastewater can be removed efficiently, thus reducing the concentration of nutrients. This can not only protect the environment, but also benefit the secondary utilization of water resources. In addition, the treatment method has simple equipment and low operating cost, which greatly reduces the pollution to the environment.

In practical production, anaerobic treatment of wastewater can be used to treat all kinds of wastewater, including catering wastewater, hospital wastewater, agricultural wastewater and so on. So that these wastewater can effectively meet the discharge standards. In addition, this technology is also widely used in the production process of biomass energy. For example, in the process of biogas production, anaerobic treatment can maximize the use of organic matter.