成都市自来水六厂五期水处理工艺的选择

Selection of water treatment process of the 5^(th) phase project of No.6 Waterworks of Chengdu

根据原水水质、出厂水水质要求并在前四期运行的基础上,充分考虑城市供水的安全性,经过总结、筛选、论证确定了成都市自来水六厂五期工程的工艺流程。为了预防水源水库运行可能带来的藻类、浮游生物的增加以及突发性有机污染等事故,处理流程中仍保留两级沉淀处理,并增加混凝剂、助凝剂、氧化剂、吸附剂投加,以及折点加氯等技术措施,以保证水厂供水水质安全。

According to the raw water quality,quality of treated water and operation of phase one to four of the waterworks,the process of the 5th phase project of No.6 Waterworks was determined after summarization,selection,demonstration and consideration on the safety of urban water supply.In order to prevent the potential increment of algae,plankton and emergent organic pollution,two-stage sedimentation was still reserved,meanwhile some technical measures,such as dosing coagulant,coagulant aid,oxidant and adsorbent,and breakpoint chlorination,were applied to guarantee safe water quality.