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预涂膜工艺应用于超滤膜系统

白永刚 涂 勇 刘伟京 陈 勇 唐 敏 张耀辉 徐 军

白永刚, 涂 勇, 刘伟京, 陈 勇, 唐 敏, 张耀辉, 徐 军. 预涂膜工艺应用于超滤膜系统[J]. 环境科学研究, 2014, 27(7): 763-767.
引用本文: 白永刚, 涂 勇, 刘伟京, 陈 勇, 唐 敏, 张耀辉, 徐 军. 预涂膜工艺应用于超滤膜系统[J]. 环境科学研究, 2014, 27(7): 763-767.
BAI Yong-gang, TU Yong, LIU Wei-jing, CHEN Yong, TANG Min, ZHANG Yao-hui, XU Jun. Study of Pre-Coating Film Process Applied on Ultrafiltration Membrane System[J]. Research of Environmental Sciences, 2014, 27(7): 763-767.
Citation: BAI Yong-gang, TU Yong, LIU Wei-jing, CHEN Yong, TANG Min, ZHANG Yao-hui, XU Jun. Study of Pre-Coating Film Process Applied on Ultrafiltration Membrane System[J]. Research of Environmental Sciences, 2014, 27(7): 763-767.

预涂膜工艺应用于超滤膜系统

基金项目: 国家水体污染控制与治理科技重大专项(2012ZX07101);江苏省环保科研课题(2013036)

Study of Pre-Coating Film Process Applied on Ultrafiltration Membrane System

  • 摘要: 为提高超滤膜系统对污水处理厂二级出水中有机物和TN的去除效果,并降低超滤膜污染速率,改善超滤膜性能,分析了沸石粉、硅藻土2种预涂膜工艺在超滤膜系统中的应用效果. 结果表明:沸石粉/超滤工艺对超滤膜系统的膜通量恢复良好,反冲洗后能恢复到原来的膜通量;而硅藻土/超滤工艺中膜通量较初期下降0.01 L/(m2·h),对照组下降0.04 L/(m2·h). 沸石粉/超滤工艺对污水处理厂二级出水中CODCr、UV254和TN的去除率分别为17.5%、13.5%和11.7%,相比对照组均有较大程度提高. 通过电镜扫描分析发现,沸石粉能够在超滤膜表面有效形成一层保护膜,降低有机物在膜表面的沉积,保障膜系统的高效率及长期稳定运行. 通过比较各实际运行工况效果并进行筛选,确定沸石粉为预涂膜工艺的最佳材料.

     

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出版历程
  • 收稿日期:  2013-10-15
  • 修回日期:  2014-03-12
  • 刊出日期:  2014-07-25

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