| 三维电极/电Fenton法去除垃圾渗滤液中的COD |
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| 引用本文： | 石岩,王启山,岳琳,何士忠.三维电极/电Fenton法去除垃圾渗滤液中的COD[J].中国给水排水,2008,24(19). |
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| 作者姓名： | 石岩 王启山 岳琳 何士忠 |
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| 作者单位： | 南开大学环境科学与工程学院,天津,300071 |
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| 摘 要： | 考察了三维电极／电Fenton法对垃圾渗滤液中COD的去除效果及其影响因素，并探讨了COD的降解动力学。结果表明，在涂膜炭填充率为20％、炭水比为0．5、极板间距为10cm、电流密度为57．1mA／cm^2、曝气量为0．2m^3／h、Fe^2＋浓度为1mmoL／L、pH值为4的最佳条件下，电解180min后，对COD的去除率为80．8％，明显高于电Fenton法（58．83％）和三维电极法（69．64％）；三维电杉电Fenton法对垃圾渗滤液中COD的降解符合拟三级反应动力学方程，当原水COD为1634mg／L时，动力学常数k=2．197×10^-8L^2／（mg^2·min）。
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| 关 键 词： | 三维电杉电Fenton法 垃圾渗滤液 COD 动力学 |
Study on COD Removal from Landfill Leachate by Three-dimensional Electrode/Electro-Fenton Process |
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| SHI Yan,WANG Qi-shan,YUE Lin,HE Shi-zhong.Study on COD Removal from Landfill Leachate by Three-dimensional Electrode/Electro-Fenton Process[J].China Water & Wastewater,2008,24(19). |
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| Authors: | SHI Yan WANG Qi-shan YUE Lin HE Shi-zhong |
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| Affiliation: | SHI Yan,WANG Qi-shan,YUE Lin,HE Shi-zhong(College of Environmental Science , Engineering,Nankai University,Tianjin 300071,China) |
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| Abstract: | COD removal effect and its influencing factors in the landfill leachate by three-dimensional electrode/electro-Fenton process were investigated,and the degradation kinetics of COD was explored.The results show that under the optimum conditions of insulating carbon content 20%,ratio of activated carbon to water 0.5,electrode distance 10 cm,current density 57.1 mA/cm2,air flow rate 0.2 m3/h,Fe2+ concentration 1 mmol/L and pH 4,the removal rate of COD is 80.8% after 180 min,which is higher than that of electro... |
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| Keywords: | COD |
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