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针对供水厂氧化除锰难的问题进行诊断分析并提出了相应的调试运行方案。水厂前期运行数据表明,对于3~4℃的低温水质,以高锰酸钾作为氧化剂不但不能有效氧化锰,反而引起水中锰浓度超标。调试运行方案以液氯为氧化剂,投氯点设于气浮池之后、滤池进水总管之上。结果表明,氯化作用可实现对铁、锰、氨氮的同步去除;运行过程中保证气浮池的正常工作可有效避免消毒副产物的产生。
For water supply plant oxidation and manganese difficult to diagnose and analyze the problem and put forward the corresponding commissioning program. The preliminary operation data of the water plant show that for the low temperature water quality of 3 ~ 4 ℃, using potassium permanganate as the oxidant not only can not effectively oxidize the manganese, but causes the manganese concentration in the water to exceed the standard. Commissioning and operation of the program to liquid chlorine as oxidant, throwing chlorine point set in the flotation tank, the filter above the inlet manifold. The results showed that the chlorination could remove the iron, manganese and ammonia nitrogen synchronously. During the operation, the normal operation of the flotation tank could effectively avoid the production of disinfection by-products.