| 摘要 |
<p>The process results in the required sterilisation efficiency both at high water flow rates and with highly polluted water. For example, the process is suitable for sterilising swimming-pool water. Water is fed from the swimming pool via a feedline (31) to a vessel (1). A partition (2) serves to calm the water. Filter plates (18) are arranged on their side edges in a filter chamber (4) and are each provided with a suction nozzle (20) at their top ends. The suction nozzles open into a pressure equalisation chamber (21) furnished at its bottom end with a suction line (23). This arrangement produces a uniform withdrawal of liquid from the filter chamber (4). Above the intermediate spaces between the individual filter plates (18) are arranged UV radiators (28). Constituents are taken off from the water surface via a take-off orifice (29). The filtered and sterilised water is returned to the swimming pool through a pipe (32). The flow velocity of the water within the filter chamber (4) is 0.5 to 50 cm/sec, so that a long residence time results for the water within the filter chamber (4) in the radiation region of the UV radiator (28). <IMAGE></p> |
