Preparation and evaluation of potassium ferrate as an oxidant and coagulant for potable water treatment

被引：68

作者：

Jiang, JQ ^{[1
]}

Lloyd, B ^{[1
]}

Grigore, L ^{[1
]}

机构：

[1] Univ Surrey, Ctr Environm Hlth Engn, Dept Civil Engn, Surrey GU2 7XH, England

来源：

ENVIRONMENTAL ENGINEERING SCIENCE | 2001年 / 18卷 / 05期

关键词：

potassium ferrate; disinfection; coagulation; water treatment;

D O I：

10.1089/10928750152726041

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Potassium ferrate was prepared using a new method, and its disinfection/coagulation performance for water treatment has been evaluated. The study results demonstrated that farrate could act as a dual-function chemical reagent (i.e., oxidant and coagulant) for drinking-water treatment, and performs better than ferric sulphate at lower doses for treating upland colored water. The ferrate can effectively remove natural organic matter (as UV254) and turbidity, and kills total coliforms (100%) at very low doses. In addition, under the optimal study conditions, the residual iron concentration and trihalomethane formation potential (THMFP) of the ferrate treated water are below that of drinking water standards.

引用

页码：323 / 328

页数：6

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