Effect of potassium permanganate on efficiency of alum-based coagulants and on content of residual and dissolved aluminum in treatment of low turbidity water - 文章详情页

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摘要：

For　treatment　of　light　pollution　water　with　low　turbidity,　the　investigation　was　made　on　coagulation　efficiency　of　Al2(SO4)3,　AlCl3,　and　PACl　as　well　as　effect　of　potassium　permanganate　on　efficiency　of　alum-based　coagulants　and　on　content　of　residual　particle　aluminum　(AlP)　and　dissolved　one　(AlD),　and　a　relativity　analysis　also　made　on　between　form　of　AlP　and　removal　performance.　The　results　show　that　there　is　similar　coagulation　efficiency　for　Al2(SO4)3　and　AlCl3,　because　their　ability　of　charge　neutralization　is　better　than　PACl.　However,　for　removal　of　turbidity　and　dissolved　organics,　PACl　is　better　than　Al2(SO4)3　and　AlCl3.　The　effect　of　KMnO4　on　zeta　potential　of　AlCl3　and　PACl　flocs　weakens　gradually　with　increase　of　its　dosage,　while　that　of　KMnO4　on　removal　of　turbidity　and　dissolved　organic　matter　goes　up,　mainly　in　the　stage　of　charge　neutralization.　Moreover,　the　content　of　AlD　and　AlP,　mainly　AlP,　decreases　obviously　by　use　of　KMnO4.　At　the　same　dosage　of　these　coagulants,　there　is　a　positive　correlation　between　the　content　of　AlP　and　residual　turbidity,　but　content　of　AlD　is　influenced　by　dosage　of　both　KMnO4　and　coagulants,　especially,　is　relatively　stable　when　sweep　flocculation　is　in　the　ascendant.　©　All　Rights　Reserved.

关键词：

Aluminum Aluminum chloride Aluminum sulfate Chemical water treatment Chlorine compounds Coagulation Dissolution Efficiency III-V semiconductors Manganese compounds Potash Turbidity Water pollution

作者机构：

[ 1 ] [Xie, Si]College of Architecture and Civil Engineering, Beijing University of Technology, Beijing 100124, China
[ 2 ] [Yang, Yanling]College of Architecture and Civil Engineering, Beijing University of Technology, Beijing 100124, China
[ 3 ] [Li, Xing]College of Architecture and Civil Engineering, Beijing University of Technology, Beijing 100124, China
[ 4 ] [Zhou, Zhiwei]College of Architecture and Civil Engineering, Beijing University of Technology, Beijing 100124, China
[ 5 ] [Su, Zhaoyang]College of Architecture and Civil Engineering, Beijing University of Technology, Beijing 100124, China
[ 6 ] [Liang, Heng]School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090, Heilongjiang, China
[ 7 ] [Li, Guibai]School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090, Heilongjiang, China

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yangyanling@bjut.edu.cn

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