Kleinkläranlage

摘要

The small sewage treatment plant for buildings, comprises buffer basin (16) to which wastewater is supplyable, a reactor container (18) in which compressed air is supplyable via aerator, a filling pump (24) that pumps water from basin into the container, a discharge pump (36), a compressed air source, and a system for cyclically controlling the supply of compressed air by the compressed air source to the filling pump, to the aerator or to the discharge pump via a first airway. The filling pump and/or the discharge pump are formed as compressed air pump. The small sewage treatment plant for buildings, comprises buffer basin (16) to which wastewater is supplyable, a reactor container (18) in which compressed air is supplyable via aerator, a filling pump (24) that pumps water from basin into the container, a discharge pump (36), a compressed air source, and a system for cyclically controlling the supply of compressed air by the compressed air source to the filling pump, to the aerator or to the discharge pump via a first airway. The filling pump and/or the discharge pump are formed as compressed air pump. A shifting device is connected to a pressure sensor via a second airway for the execution of a hydrostatic level measuring of the water level with the buffer basin or the reactor container, or is connected to the pressure sensor for testing the function of compressed air source via the first airway with compressed air source. The shifting device has a first valve and a second valve. The first valve is arranged in the first airway and the second valve is arranged in the second airway. The first valve and the second valve are formed as ball valves, which are arranged in the first airway and/or the second airway, and which are closed when the pressure at the sensor-lateral end of the airway is higher than the pressure at the sensor-turned away end of the airway. The small sewage treatment plant is formed as sequence batch reactor-treatment plant and operatable in the fixed bed method or in the fluidized bed method.