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超声/Fenton法处理毒死蜱中间体废水的工艺优化

许晓毅 蔡 岚 吉芳英 幸秀丽 程 谣 张婷婷

许晓毅, 蔡 岚, 吉芳英, 幸秀丽, 程 谣, 张婷婷. 超声/Fenton法处理毒死蜱中间体废水的工艺优化[J]. 环境科学研究, 2015, 28(11): 1755-1763.
引用本文: 许晓毅, 蔡 岚, 吉芳英, 幸秀丽, 程 谣, 张婷婷. 超声/Fenton法处理毒死蜱中间体废水的工艺优化[J]. 环境科学研究, 2015, 28(11): 1755-1763.
XU Xiaoyi, CAI Lan, JI Fangying, XING Xiuli, CHENG Yao, ZHANG Tingting. Process Optimization of Chlorpyrifos Intermittent Wastewater Treatment by Ultrasonic-Combined Fenton Reaction[J]. Research of Environmental Sciences, 2015, 28(11): 1755-1763.
Citation: XU Xiaoyi, CAI Lan, JI Fangying, XING Xiuli, CHENG Yao, ZHANG Tingting. Process Optimization of Chlorpyrifos Intermittent Wastewater Treatment by Ultrasonic-Combined Fenton Reaction[J]. Research of Environmental Sciences, 2015, 28(11): 1755-1763.

超声/Fenton法处理毒死蜱中间体废水的工艺优化

基金项目: 国家水体污染控制与治理科技重大专项(2013ZX07314)

Process Optimization of Chlorpyrifos Intermittent Wastewater Treatment by Ultrasonic-Combined Fenton Reaction

  • 摘要: 针对毒死蜱中间体生产的化工废水有机物浓度高、生物抑制性强的特点,以实际生产废水为研究对象,基于响应曲面法,进行了超声/Fenton法降解有机物效能研究与运行参数的优化. 结果表明:①通过单因素试验确定响应曲面设计的自变量中心点为H2O2投加量0.5 mol/L、Fe2+投加量0.93 g/L、反应时间90 min. ②采用Box-Behnken试验设计,建立了以H2O2及Fe2+投加量、反应时间为自变量的回归模型,经方差分析,模型显著(P<0.000 1);对有机物去除率影响最大的因素为Fe2+投加量,其与反应时间的交互作用显著. ③最优工况为H2O2投加量0.7 mol/L、Fe2+投加量1.36 g/L、反应时间96 min,该条件下模型预测CODCr去除率为96.63%,试验值与模型预测值的相对误差为1.36%,出水水质指标远低于GB 8978—1996《污水综合排放标准》三级标准,ρ(BOD5)/ρ(CODCr)从0.09升至0.22,CODCr单位去除负荷的H2O2及Fe2+用量相对较低,分别为0.14 mmol/mg和0.28 mg/mg. 研究显示,采用超声/Fenton法处理高浓度难降解有机废水可有效提高CODCr去除率及其可生化性.

     

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出版历程
  • 收稿日期:  2015-03-17
  • 修回日期:  2015-08-03
  • 刊出日期:  2015-11-25

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