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采用可调式六角孔网格絮凝系统处理浊度为10 NTU、色度为30倍的低浊水,获得了良好的处理效果。在不同进水流量(150、200、250 L/h)下,对浊度和色度的去除率分别可达(79.0%～90.0%)、(74.0%～85.3%),且处理效果随进水流量的增大而降低;当六角孔网格模块按照网片面积由大到小的方式自上而下排列时,对浊度和色度的处理效果最好。低浊水经多个六角孔网格模块絮凝作用后,絮体的平均有效质量密度为1 287 kg/m3、平均当量粒径为328.70μm、平均自由沉速为12.94 mm/s、二维分形维数为2.58。
An adjustable hexagonal grid flocculation system was adopted to deal with low turbidity water with turbidity of 10 NTU and chromaticity of 30 times, and a good treatment effect was obtained. Under different influent flow rates (150, 200, 250 L / h), the removal rates of turbidity and chroma were up to 79.0% -90.0% and 74.0% -85.3%, respectively, Water flow increases and decreases; when the hexagonal hole grid module according to the mesh size from top to bottom arrangement, the best turbidity and color processing. After flocculation of low-turbidity water by a series of hexagonal grids, the average effective mass density of flocs was 1 287 kg / m3, the average equivalent particle diameter was 328.70 μm and the mean free settling velocity was 12.94 mm / s. The fractal dimension The number of dimensions is 2.58.