污水站滤罐反冲洗参数优化试验

Experimental Study on Optimization of the Back Flush Parameters of Filter Tank in the Sewage Station

为解决部分污水站外输水中悬浮物含量不能稳定达标的问题,开展了含油污水站滤罐反冲洗参数优化试验。选择污水站进行小型模拟和现场试验,优化反冲洗参数,确定某含油污水站滤罐最佳反冲洗强度为9 L/(m^2·s),单座滤罐最佳反洗历时29 min,最佳反洗周期为22 h,此时悬浮物去除效率达到82.7%,二次滤罐出口悬浮物质量浓度为5 mg/L以下,滤罐达到较好的出水效果。

In order to solve the problem that the suspended solids in the outlet water of the sewage station can not be settled up to the standard, the optimization of the back flush parameters of the filter tank in the oil sewage station was carried out. Selection of wastewater station small simulation experiment and field test,through backwashing parameters optimization and adjustment to determine Y sewage station filter tank optimum backwashing intensity is 9 L/（m^2· s）, single filter tank optimum backwashing duration 29 min, optimum backwashing cycle is 22 h.At this time suspended solids removal efficiency reached 82.7%,secondary filter tank outlet suspended matter content below 5 mg/L, filter tank achieve better outlet water effects.