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复合污染条件下Fe^(2+)/PMS缓解超滤膜污染的研究 被引量:1

Mitigation of Ultrafiltration Membrane Fouling by Fe^(2+)/PMS under Combined Contamination Conditions
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摘要 为解决复合污染原水中同步去除Mn和天然有机物问题,针对亚铁离子(Fe^(2+))/过氧单硫酸盐(PMS)/超滤(UF)对污染物的去除效果及对超滤膜污染的影响进行研究。结果表明:在复合污染条件下,Fe^(2+)/PMS/UF体系对DOC和UV;去除率分别为97.5%和98.48%,出水Mn^(2+)质量浓度为0.015μg/L,处理效果显著。Mn^(2+)的存在可强化对蛋白类有机物的去除及增强超滤膜的进水亲水性,改善超滤膜可逆和不可逆污染。应用XDLVO理论分析膜污染,Mn^(2+)存在时总相互作用能负值最小,氧化可有效缓解超滤膜污染。 In order to remove natural organic matter and manganese from surface water,the effect of ferrous(Fe^(2+))/peroxymonosulfate(PMS)/ultrafiltration(UF)on the removal of pollutants and ultrafiltration membrane fouling were studied.The results showed that the removal rates of DOC and UV;by Fe^(2+)/PMS/UF system were 97.5%and 98.48%and the effluent Mn^(2+) concentration was 0.015μg/L.The presence of Mn^(2+) could enhance the removal of protein organics,enhance the hydrophilicity of ultrafiltration membrane,and improve the reversible and irreversible pollution of ultrafiltration membrane.XDLVO theory was used to analyze membrane fouling.The negative value of total interaction energy was minimum in the presence of Mn^(2+),and oxidation could effectively alleviate ultrafiltration membrane fouling.
作者 陶辉 顾颖 林涛 蒋福春 张雪 TAO Hui;GU Ying;LIN Tao;JIANG Fu-chun;ZHANG Xue(Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakers,Ministry of Education,Hohai University,Nanjing 210098,China;College of Environment Hohai Vniversity,Nanjing 210098,China;Suzhou Water Supply Co.,Ltd.,Suzhou 215124,China)
出处 《环境科技》 2022年第2期8-12,16,共6页 Environmental Science and Technology
基金 国家重点研发计划(2018YFC1508704) 苏州市科技发展计划(SS201846).
关键词 亚铁离子 过氧单硫酸盐 超滤 膜污染 Manganese Ferrousion Peroxymonosulfate Ultrafiltration Membrane fouling
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