COMPARISON OF POLYFERRIC SULFATE WITH OTHER COAGULANTS FOR THE REMOVAL OF ALGAE AND ALGAE-DERIVED ORGANIC-MATTER

被引：97

作者：

JIANG, JQ ^{[1
]}

GRAHAM, NJD ^{[1
]}

HARWARD, C ^{[1
]}

机构：

[1] ANGLIAN WATER SERV LTD,HISTON CB4 4ZY,CAMBS,ENGLAND

来源：

WATER SCIENCE AND TECHNOLOGY | 1993年 / 27卷 / 11期

关键词：

POLYFERRIC SULFATE; FERRIC SULFATE; ALUMINUM SULFATE; POLYALUMINIUM CHLORIDE; COAGULANTS; ALGAE; ANABAENA-FLOS-AQUAE; ASTERIONELLA-FORMOSA;

D O I：

10.2166/wst.1993.0280

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

This paper is concerned with the performance of a relatively new form of metal-iron coagulant, Polyferric Sulphate (PFS), which has received very little research attention to date. Laboratory experiments have been undertaken in which the coagulation performance of PFS, Ferric sulphate, Aluminium sulphate and Poly aluminium chloride have been studied using 'model' waters containing single cultures of algae ( Anabaena flosaquae and Asterionella formosa) and other 'model' waters prepared by mixing aquatic humic substances with Asterionella formosa at different concentration ratios. Physico-chemical variables such as colloid charge, floc number concentration and size distribution, DOC concentration and turbidity, have been determined to quantify treatment performance. The performance of PFS was found to be superior to the other coagulants and this was believed to be due to the presence of more highly charged cation species. For all coagulants there was an approximate stoichiometry between coagulant dose and the dissolved organic carbon concentration.

引用

页码：221 / 230

页数：10