Patent DE-102005032137-A1 (DE)
Title: Liquid processing plant for cleaning contaminated liquids by filter element, comprises pressure tanks exhibiting filter element for filtration of raw water to pure water, discharge opening for pure water, and connection
Inventor: BLOMEIER MAXIMILIAN
IPC: C02F1/32
Filed: 2005-07-07
Abstract: A liquid processing plant (34) for cleaning contaminated liquids by a filter element (10) comprises pressure tanks (36, 38, 40) exhibiting an inlet (44) for raw water, a filter element for the filtration of raw water to pure water, a connection for a pressure pipe (54) over a positive pressure, which is sufficient for pressing down the raw water through the filter element, is generatable in the pressure tank. The filter element is implemented and the positive pressure within the pressure tank is kept at high value in such a manner that the filtration is feasible to a reverse osmosis principle. The liquid processing plant (34) for cleaning contaminated liquids by a filter element (10) comprises pressure tanks (36, 38, 40) with an inlet (44) for raw water, a filter element for the filtration of raw water to pure water, and a connection for pressure pipe (54) over a positive pressure, which is sufficient for pressing down the raw water through the filter element, generatable in the pressure tank. The filter element is implemented and the positive pressure within the pressure tank is kept at a high value in such a manner that the filtration is feasible to a reverse osmosis principle. The filtered liquid from the pressure tank is supplied to primary pressure tanks. The pressure tanks are connected with one another over a line that exhibits regulating valves, which facilitates an alternating filling of the primary pressure tank with filtered liquid from the pressure tank. The pressure tank causes a rough filtration and the primary pressure tanks cause a fine to very fine filtration. A purified water tank connects to a discharge opening and exhibits a connection for the pressure pipe with regulating valves. The connection is intended for the filter element to recirculate the liquid. The filter element is designed as an oblong filter element with a pipe that is connected with a hollow filter body which is made of a carrier frame that forms an internally-arranged cavity and is connected with the pipe, a base layer from coarse-grained material, which surrounds the carrier frame and is connected with it, an external layer from fine-grained material, which surrounds the base layer and is connected with it, so that the liquid flow from outside into the filter body and then through the pipe. The filter element exhibits a diaphragm that enables a reverse osmosis filtration. A water processing device is intended to process the filtered-out raw water and exhibits a light source, which transmits ultraviolet light (UV), a cascade water passage, which is arranged in such a way that the water led over the water passage is radiated with the light transmitted by the light source. The dosage and wavelength of the UV-radiation and the arrangement of the light source to the water passage are selected to kill the microorganisms in the water. The light source is implemented and radiates UV light from all sides in radial direction and is arranged in such a manner that its longitudinal axis runs in a vertical direction. Cascade water passage is arranged concentrically around the light source in which the water flows downwards from the top over cascade stages along the longitudinal direction of the light source and is constantly radiated with UV light. The cascade sections are intended, which are arranged one below the other in longitudinal direction of the light source. The water flows from the cascade stage with the smallest distance to the light source into the cascade stage exhibiting the largest distance to the light source in the subsequent cascade section. Each cascade stage exhibits a stage basin, which is formed of a basin bottom, front and rear walls and collect the water in it. When the stage basin is filled, the water subsequently flows over the front wall facing the light source downwards into the below-lying stage basin of the cascade stage.