城市污水处理升级改造中化学除磷原理及费用

Chemical phosphorus removal principles in the upgrading reform of urban wastewater treatment and the cost

就城市污水处理升级改造中化学除磷原理及费用进行了分析和介绍,指出化学药剂与污水中的磷通过化学反应形成不溶性磷酸盐以沉淀、过滤等方式得以去除。污水中磷浓度越高,化学药剂的利用率也越高,反之亦然;出水磷浓度要求越低,则去除单位磷的化学药剂量越大。

This thesis analyzes and introduces the chemical phosphorus removal principles in the upgrading reform of urban wastewater treatment and the cost, points out that chemical agent through chemieal reaction with the phcspbrus of the sewage can form insoluble plosphate, which can be removed through precipitation, filtration and other methods. The higher is the concentration of phosphorus in waste water, the higher is the utilization of chemical agents, and vice versa. Lower effluent pbesphorus concentration requirements, the removal units are higher doses of pbesphorus.