强化饮水除砷剂的研制

长期饮用高砷水有害人体健康 ,而改饮低砷水可以缓解已发病者的症状。研究经济、高效、简便的饮水除砷剂是十分必要的。本课题研制的强化除砷剂具有除砷容量高 ,出水的含砷量低于 0 0 5mg L ;除砷功能专一 ,即只除去水中的砷而不改变水中其它元素的组成和含量 ;操作管理简单 ,进水、出水均无需调节pH ;除砷成本低 ,每吨成本仅为活性氧化铝或颗粒活性炭的 1 5 ,氧化催化剂可重复使用。有望广泛用于高砷水地区集中式和分散式供水的除砷系统。

Study on an enhancing agent for removing arsenic from drinking water

Drinking water contaminated by arsenic for an extended period of time could be detrimental to the health of people. Some preliminary symptoms could be alleviated by drinking water non contaminated. It is important to develop an arsenic removal agent with a specific property of most efficient, cost effective and easy for operation. The results showed that the capacity of the agent developed in this study was 10 times higher for arsenic removal than other agent available. The lowest arsenic content of the treated water was 0.05 mg/L. The special function of this agent was arsenic removing without changing other components and the concentrations of other elements in the treated water. The operation and management was simple without adjusting pH of the influent and effluent water. The agent was 5 times cheaper in cost than alumina or activated carbon, because it was a reusable oxidation catalyst. Therefore, the agent could be widely applied in drinking water plants or used as a purifier at home in the high arsenic areas.