Domestic wastewater is wastewater that is formed as a result of people's personal consumption. Wastewater characterization and pollution concentrations do not change much. Wastewater flow rate is directly proportional to the population.

Domestic wastewater treatment plants are treated with physical and biological or only biological treatment units depending on the wastewater flow rate.

Domestic wastewater treatment plants; villages, towns or district settlements, holiday resorts, military units, hotels, hospitals, factories, construction sites, mass housing, etc. It can be done in units where the sewage infrastructure does not result in treatment.

If it is planned to use the treated household waste water for irrigation purposes, it is possible to provide them with filtration and disinfection processes. Further treatment of wastewater is also possible with the Membrane Bio Reactor (MBR) system. Wastewater treatment plants can be constructed as reinforced concrete or package type portable size steel construction depending on wastewater flow rate.