The proposed type wastewater treatment plants are intended for household-faecal wastewaters formed as a result of the use of drinking water to meet household and hygiene needs in the home or office (from kitchen activities, toilets, showers, washing, etc.). “SBR” type plants are an ideal solution when there is no connection to the centralized sewerage system and ensure that the quality of the outgoing water meets the requirements of the current regulations, allowing them to be discharged into natural surface water sources and permeable soils. These treatment plants are compact in size, fully equipped, easy to install and use, do not emit odours, noise and vibrations in their work and can be used to cater for the need for sewage treatment from family houses, small residential buildings, hotels, warehouses, office buildings and more.