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根据在抚顺东公园水厂的试验,对直接过滤的几个问题提出几点意见。 一、直接过滤工艺混合设备是必要的 据日本《工业用水》杂志报导,不经过混合设备的凝聚过滤比经过混合设备的微絮凝过程可进一步减少投药量,但混凝剂的投加点及到达滤层的时间,对过滤有很大的影响。 为了检验直接过滤有无混合设备及混凝剂不同投加点的过滤效果,从混合槽至滤柱布置A,B、C、D、四个投药点,进行对比试验,
According to the test in the water purification plant in Fushun East Park, several opinions were given on several issues of direct filtration. First, the direct filtration process mixing equipment is necessary According to Japan’s “Industrial Water” magazine reported that the coagulation and filtration without mixing equipment than through the mixing equipment micro-flocculation process can further reduce the dosage, but the coagulant dosing point and reach the filter The time of the layer has a great influence on the filtering. In order to test the filtering effect of direct filtration with or without mixing equipment and different dosages of coagulant, a contrast test was conducted from mixing tank to column A, B, C, D, and four injection points.