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快滤池的冲洗,一般均采用滤后水进行反冲洗,在水温较高的情况下,往往冲洗强度大,耗水量多。特别在水源较缺乏或花费较大动力和投资才能把原水抽送到厂的情况下,如何节省滤池冲洗用水,是设计中值得考虑的问题。广东省湛江水厂及罗定水厂系采用水、气对滤池进行反冲洗,经过十多年的生产使用结果,不仅冲洗效果比单纯用水反冲好,而且在节省反冲洗水方面也取得显著效果。湛江水厂系深层地下水除铁的石英砂滤池,罗定水厂则为一般净化地表水的普通快滤池。这两种处理不同水质的滤池共同
Quick filter tank flushing generally adopts filtered water for back flushing. In the case of high water temperature, the flushing intensity is often large and the water consumption is large. Especially in the case that the water source is relatively lacking or a large amount of power and investment are required to pump raw water to the plant, how to save the filter water for flushing is a design issue worthy of consideration. Zhanjiang Water Plant and Luoding Water Plant of Guangdong Province used water and gas to backwash the filter tank. After more than ten years of production and use results, not only was the flushing effect better than that of water recoil alone, but also significant results were achieved in saving backwash water. . Zhanjiang Water Plant is a quartz sand filter for removing iron from deep groundwater, and Luoding Water Plant is a general fast filter tank for surface water purification. The two filters that handle different water quality are common