自来水厂活性炭池生物泄漏的评价方法及控制措施

Evaluation Method and Control Measure of Biological Leakage in Activated Carbon Tank

为了更好地评价微型动物泄漏,找到合适的评价方法,对生物活性炭池进水和出水、砂滤池出水和出厂水取样,检测分析了水样中浊度、颗粒物数量、生物量、藻类和微型动物等指标;结合水厂基础水质指标和活性炭生物膜的检测结果,对生物活性炭池微型动物泄漏的评价分析方法展开了讨论,研究如何监测微型动物泄漏并评估泄漏的程度。结果表明:通过检测浊度、颗粒物数量、生物量、藻类和微型动物等指标可以预知微型动物泄漏风险,及时采取防范措施;调整活性炭池的结构、反冲洗周期和反冲洗方式可有效防治微型动物泄漏。

In order to evaluate biological leakage and find a suitable evaluation method, taking activated carbon tank inlet and outlet,sand filter outlet and effluent as samples to detect turbidity,particulate matter,biomass,algae and micro-animals.Combined with water plant basic water quality index and activated carbon biofilm,evaluation method of biological leakage in biological activated carbon tank was discussed.The results showed that by detecting turbidity,the amount of particulate matter,biomass,algae and micro-animal,the risk of biological leakage could be predicted and prevented.Adjusting the structure of activated carbon pool,backwash cycle and backwashing method could effectively prevent biological leakage.