Rational Design of a High-Performance KMnO_(4)-Fe(Ⅱ)-Si Coagulant for Dye Removal  

作　　者：WU Qianqian TANG Lipeng XIAO Feng WEI Qunshan LIU Yanbiao HUANG Manhong CHOW Christopher W K 吴倩倩;唐立朋;肖峰;魏群山;刘艳彪;黄满红;CHOW Christopher W K(College of Environmental Science and Engineering,Donghua University,Shanghai 201620,China;Textile Pollution Controlling Engineering Center of Ministry of Environmental Protection,Donghua University,Shanghai 201620,China;School of Water Resources and Hydropower Engineering,North China Electric Power University,Beijing 102206,China;Scarce Resources and Circular Economy(ScaRCE),UniSA STEM,University of South Australia,Mawson Lakes,SA 5095,Australia)

机构地区：[1]College of Environmental Science and Engineering,Donghua University,Shanghai 201620,China [2]Textile Pollution Controlling Engineering Center of Ministry of Environmental Protection,Donghua University,Shanghai 201620,China [3]School of Water Resources and Hydropower Engineering,North China Electric Power University,Beijing 102206,China [4]Scarce Resources and Circular Economy(ScaRCE)UniSA STEM,University of South Australia,Mawson Lakes,SA 5095,Australia

出　　处：《Journal of Donghua University(English Edition)》2021年第2期148-157,共10页东华大学学报（英文版）

基　　金：National Natural Science Foundation of China(No.21876025);National Key Research and Development Program of China(No.2019YFC0408304)。

摘　　要：A new ternary coagulant polysilicate ferromanganese(PSFM),composed of Fe,Mn and Si,was designed.Its coagulation performance for dye removal was investigated systematically together with the impact of several key operational parameters.The experimental results indicate that an excellent coagulation efficiency with higher than 95%color removal and higher than 94%total organic carbon(TOC)removal can be obtained at an optimized molar ratio of Si∶Fe∶Mn(5∶5∶1).The coagulation performance of PSFM coagulant was studied comparatively with other conventional coagulants,e.g.poly aluminium chloride(PAC),Al_(2)(SO_(4))_(3)and FeCl_(3).Additionally,various characterization techniques were applied to get detailed morphological and compositional information of PSFM coagulants.Furthermore,the underlying mechanism for improved coagulant performance was proposed based on these results.These results have exemplified quantitatively that PSFM coagulant exhibits a great potential as a promising material for application in various environmental fields.

关 键 词：ternary coagulant coagulation mechanism polysilicate ferromanganese HIGH-PERFORMANCE 

分 类 号：X703.5[环境科学与工程—环境工程]