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电催化还原脱毒预处理丙烯酸盐废水

王红 宋玉栋 余丽娜 周岳溪 朱书全

王红, 宋玉栋, 余丽娜, 周岳溪, 朱书全. 电催化还原脱毒预处理丙烯酸盐废水[J]. 环境科学研究, 2016, 29(4): 573-578.
引用本文: 王红, 宋玉栋, 余丽娜, 周岳溪, 朱书全. 电催化还原脱毒预处理丙烯酸盐废水[J]. 环境科学研究, 2016, 29(4): 573-578.
WANG Hong, SONG Yudong, YU Lina, ZHOU Yuexi, ZHU Shuquan. Detoxification Pretreatment of Acrylate Wastewater by Electrocatalytic Reduction Process[J]. Research of Environmental Sciences, 2016, 29(4): 573-578.
Citation: WANG Hong, SONG Yudong, YU Lina, ZHOU Yuexi, ZHU Shuquan. Detoxification Pretreatment of Acrylate Wastewater by Electrocatalytic Reduction Process[J]. Research of Environmental Sciences, 2016, 29(4): 573-578.

电催化还原脱毒预处理丙烯酸盐废水

基金项目: 国家水体污染控制与治理科技重大专项(2012ZX07201-005,8ZX07201-004)

Detoxification Pretreatment of Acrylate Wastewater by Electrocatalytic Reduction Process

  • 摘要: 丙烯酸盐生物降解性好,但毒性较高,为解决含丙烯酸盐废水难以进行高负荷厌氧生物处理的问题,采用电催化还原技术预处理高浓度丙烯酸盐废水,考察了初始ρ(丙烯酸盐)、电流、废水pH、温度、ρ(对甲基苯磺酸盐)等对丙烯酸盐转化的影响. 结果表明:初始ρ(丙烯酸盐)、废水pH、电流对丙烯酸盐电催化还原为丙酸盐的过程影响较大,而废水温度和ρ(对甲基苯磺酸盐)的影响较小. 当废水初始ρ(丙烯酸盐)由5.0 g/L升至20.0~60.0 g/L时,丙烯酸盐转化速率由30.1 g/(L·h)升至51.9~54.6 g/(L·h),能耗下降近50%;随着操作电流从0.25 A升至2.00 A,丙烯酸盐转化速率由9.5 g/(L·h)线性增至85.1 g/(L·h),电流效率略有降低,能耗由2.0 W·h/g增至5.2 W·h/g;pH由2升至4时,能耗由6.6 W·h/g降至3.4 W·h/g;废水温度在30~50 ℃范围内、ρ(对甲基苯磺酸盐)在0~8.0 g/L范围内时,对丙烯酸盐的转化影响较小. 研究显示,在优化工艺条件(电流为1.00 A、废水pH为5、温度为30 ℃)下,电催化还原处理实际丙烯酸丁酯废水,电流效率达90%以上.

     

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出版历程
  • 收稿日期:  2015-05-17
  • 修回日期:  2016-01-13
  • 刊出日期:  2016-04-25

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