Patent DE-102008021137-A1 (DE)
Title: Pond water treatment system comprises inlet, outlet led to drain, treatment zones, which are intended for cleaning wastewater, provided between inlet and outlet and equipped with filling level measuring device, detecting device, and pipes
Inventor: MICHEL MARTIN
IPC: C02F1/32
Filed: 2008-04-28
Abstract: The pond water treatment system comprises an inlet (1), an outlet (11) led to a drain, several treatment zones intended for cleaning wastewater, provided between the inlet and the outlet and equipped with a filling level measuring device, a device (2) that is arranged downstream to the inlet for detecting degree of contamination of the wastewater supplied to the treatment system, and pipes (3, 4, 5) for introducing the wastewater into the treatment zones, where the pipes are assigned to a separating device for the defined introduction of the wastewater into one of the treatment zones. The pond water treatment system comprises an inlet (1), an outlet (11) led to a drain, several treatment zones intended for cleaning wastewater, provided between the inlet and the outlet and equipped with a filling level measuring device, a device (2) that is arranged downstream to the inlet for detecting the degree of contamination of the wastewater supplied to the pond water treatment system, pipes (3, 4, 5) for introducing the wastewater into the treatment zones, where the pipes are assigned to a separating device for the defined introduction of the wastewater into one of the treatment zones, and a regulating system (10), which is connected with the filling level measuring device, the detection device and the separating device, so that the wastewater is introduced in one of the treatment zones defined in dependent of the contamination degree of the wastewater and the filling level of the treatment zones. The regulating system is a fuzzy logic system. A high-concentration zone, a middle-concentration zone and a low-concentration zone are provided as the treatment zones. The high-concentration zone is formed as a single-tank wastewater treatment plant with a stirrer and/or an aerator. The middle-concentration zone is formed as a sedimentation tank optionally equipped with a stirrer. The low-concentration zone is formed as a sedimentation tank. The pond water treatment system additionally has a polishing basin and/or a hygienic zone equipped with an ultraviolet radiation source. The regulating system is aligned, so that the highly contaminated wastewater is directly supplied to the high-concentration zone in dependent of the filling level of the treatment zones and/or after an intermediate storage in the middle-concentration zone and/or low-concentration zone, so that the averagely contaminated wastewater is directly supplied to the middle-concentration zone in dependent of the filling level of the treatment zones and/or after an intermediate storage in the low-concentration zone of the middle-concentration zone and so that the low or non-contaminated wastewater of the low-concentration zone is supplied to the polishing basin, hygienic zone and/or drain. The middle-concentration zone and the low-concentration zone are provided with a pumping device for recirculating the wastewater in the high-concentration zone. The regulating system is aligned, so that the high or average contaminated wastewater is supplied from the middle-concentration zone and/or low-concentration zone to the high-concentration zone in dependent of the filling level of the treatment zones. An independent claim is included for a method for increasing a cleaning capacity of a pond water treatment system.