This is the final stage of wastewater treatment.

Disinfection. This is the final stage of wastewater treatment. As part of this stage, water is disinfected using chlorine -containing drugs.

Cleaning structures can be of various types. Household septic tanks and industrial. Septic tanks are called reliable wastewater treatment systems. They do not require installation of special devices, equipment. Local cleaning structures are a very weak system for cleaning wastewater. They only partially eliminate bacteria.