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生物转盘是利用生物膜处理废水的一种方法,是在生物滤池的基础上发展起来的,经过半个多世纪的努力探索,现在生物转盘在国内外已广泛应用。生物转盘与生物滤池及活性污泥法相比有很多优点,其中动力费用较低是重要优点之一。但对于生物转盘耗电量的计算,目前还没有公式可循,据国外资料,对于城市污水只能大约估计,一般以每小时去除1公斤BOD_5需轴功率0.1～0.3千瓦。国外实测耗电情况不太清楚,但根据此公式计算,与国内实测转盘功率相比普遍偏小(见表1)。另外,BOD_5的去除与耗电无直接关系,特别是在单轴单级,多级处理情况下,每级一台电机,如按BOD_5来计算功率根本不合理,其结果必然与实测差距较大。在国内由于没有公式可供计算,一般在
The biological carousel is a method of using biological membranes to treat wastewater. It is developed on the basis of biological filters. After more than half a century of hard exploration, biological carousels have been widely used at home and abroad. The biological carousel has many advantages over the biological filter and the activated sludge process, and the lower power cost is one of the important advantages. However, there are no formulas for the calculation of the biological disk power consumption. According to foreign data, the estimated municipal wastewater can only be roughly estimated. Generally, the required spindle power of 0.1 kg BOD_5 per hour is removed from 0.1 to 0.3 kW. The power consumption measured by foreign countries is not clear, but according to this formula, it is generally smaller than the domestic measured turntable power (see Table 1). In addition, there is no direct relationship between the removal of BOD_5 and power consumption, especially in the case of single-axis, single-stage, multi-stage processing. If one motor at each stage is used, it is not reasonable to calculate the power according to BOD_5. The result is necessarily larger than the actual measurement. . Because there is no formula for calculation at home, generally