Efficiency and mechanism of micro-pollution removal by coagulation of iron-manganese composited oxide - 文章详情页

作者：

Yang, Yan-Ling (Yang, Yan-Ling.) (学者：杨艳玲) | Li, Xing (Li, Xing.) | Yang, Wei (Yang, Wei.) | Jia, Feng (Jia, Feng.) | Zhao, Fu-Wang (Zhao, Fu-Wang.)

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摘要：

Interface　performance,　charge　property　and　structure　topography　of　iron-manganese　oxide　(FeMnO)　are　studied.　Pollution　removal　mechanism　of　the　FeMnO　are　approached.　Results　show　that　main　compositions　of　the　FeMnO　are　δ-manganese　dioxide　and　ferric　hydroxide.　The　FeMnO　contains　with　rich　hydroxyl.　The　specific　surface　area　is　reached　to　146.22m2/g.　Zero　charge　point　of　the　oxide　in　pure　water　is　about　8.0　of　pH　value.　The　FeMnO　particles　are　quasi-spherical　micro-particles　with　irregular　sizes　adjoined　to　form　net　construction　each　other.　Removal　rates　of　turbidity,　TOC　and　UV254　of　filtered　water　are　reached　to　99.99%,　42.25%　and　68.91%　respectively,　after　FeMnO　coagulation.　The　mechanism　of　turbidity　and　organic　matter　removal　by　coagulation　is　combined　results　of　multiple　actions　of　adsorption,　charge　neutralization,　adsorption/bridging　and　so　on.

关键词：

Coagulation Chemicals removal (water treatment) Iron oxides Manganese oxide Chemical water treatment Pollution Topography Aluminum oxide Potable water Turbidity

作者机构：

[ 1 ] [Yang, Yan-Ling]Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing 100124, China
[ 2 ] [Li, Xing]Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing 100124, China
[ 3 ] [Yang, Wei]Department of Environment Engineering, Harbin University of Commerce, Harbin 150076, China
[ 4 ] [Jia, Feng]Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing 100124, China
[ 5 ] [Zhao, Fu-Wang]Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing 100124, China

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