Municipal wastewater phosphorus removal by coagulation

被引：50

作者：

Yang, Kai ^{[2
]}

Li, Zhenhua ^{[2
]}

Zhang, Huaiyu ^{[3
]}

Qian, Jiangfeng ^{[2
]}

Chen, Gang ^{[1
]}

机构：

[1] FAMU FSU Coll Engn, Dept Civil & Environm Engn, Tallahassee, FL 32310 USA

[2] Wuhan Univ, Sch Civil Engn, Wuhan 430072, Peoples R China

[3] Cent & So China Municipal Engn Design & Res Inst, Wuhan 430010, Peoples R China

来源：

ENVIRONMENTAL TECHNOLOGY | 2010年 / 31卷 / 06期

关键词：

phosphorus; coagulant; adsorption; precipitation; EUTROPHICATION; CHEMISTRY; IMPACTS; ALUM; IRON;

D O I：

10.1080/09593330903573223

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

This study investigated the chemical removal of phosphorus from wastewater by means of adsorption and precipitation. Using secondary effluent from municipal wastewater treatment plants as the model wastewater, phosphorus precipitation was tested with four commonly used metal salt coagulants, and phosphorus adsorption was explored by column experiments with goethite-coated silica sand as porous media. It was concluded that adsorption played a more important role than precipitation in phosphorus removal. As demonstrated by the column experiments (integration of the breakthrough curve), around 65% of phosphorus can be retained through adsorption by goethite-coated silica sand.

引用

页码：601 / 609

页数：9

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