高锰酸盐复合药剂预氧化强化海水混凝效能

摘要

采用高锰酸盐预氧化技术对海水进行预处理,探讨了高锰酸盐投量、与混凝剂的投加顺序、氧化时间等因素对海水混凝效能的改善效果.结果表明,高锰酸盐预氧化可显著改善海水混凝效果,其投量应控制在2～4 mg/L之间,应在混凝剂之前或与之同时投加,预氧化时间宜控制在30min以内.%This paper discussed on enhanced seawater coagulation process by permanganate composite chemicals (PPC) pretreatment. The indexes which included dosage of PPC, dosing order and pretreatment time on coagulation process were investigated. The result showed that PPC preoxidation could enhance coagulation process on organics and turbidity removal significantly. PPC dosage should be controled between 2 ～4 mg/L. PPC should be added into water before or at the same time of FeC13, and the pretreatment time should be kept in 30 minutes.