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电絮凝过程处理含铬废水的工艺及机理

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刘玉玲, 陆君, 马晓云, 李艳, 林生岭. 电絮凝过程处理含铬废水的工艺及机理[J]. 环境工程学报, 2014, 8(9): 3640-3644.
引用本文: 刘玉玲, 陆君, 马晓云, 李艳, 林生岭. 电絮凝过程处理含铬废水的工艺及机理[J]. 环境工程学报, 2014, 8(9): 3640-3644.
shu
Liu Yuling, Lu Jun, Ma Xiaoyun, Li Yan, Lin Shengling. Technique and mechanism of electrocoagulation process for treatment of wastewater containing chromium[J]. Chinese Journal of Environmental Engineering, 2014, 8(9): 3640-3644.
Citation: Liu Yuling, Lu Jun, Ma Xiaoyun, Li Yan, Lin Shengling. Technique and mechanism of electrocoagulation process for treatment of wastewater containing chromium[J]. Chinese Journal of Environmental Engineering, 2014, 8(9): 3640-3644.
shu

电絮凝过程处理含铬废水的工艺及机理

  • 1.

    江苏科技大学环境与化学工程学院, 镇江 212003

  • 基金项目:

    国家自然科学基金资助项目（51208233）

    江苏省自然科学基金资助项目（BK2012079）

  • 中图分类号: O646;X703

Technique and mechanism of electrocoagulation process for treatment of wastewater containing chromium

  • 1.

    School of Environmental and Chemical Engineering, Jiangsu University of Science & Technology, Zhenjiang 212003, China

  • Fund Project:

  • 摘要: 以六价铬废水为处理对象，采用电絮凝过程研究了槽电压、初始浓度、初始pH值、电极材料等工艺参数对电絮凝过程分离Cr（Ⅵ）离子效率的影响机理。结果表明，采用Fe/Fe电极，对初始浓度为105 mg/L的Cr（Ⅵ）离子废水，最优槽电压为4 V，初始pH值为6，电解60 min，去除率可达到98.84%。Cr（Ⅵ）的去除率随着槽电压的升高而增大，随着初始浓度以及初始pH值的增加而减小。研究发现，初始pH值决定电絮凝过程中Cr（Ⅵ）的主要去除方式，在偏中性范围内Cr（Ⅵ）主要通过絮体吸附作用去除。对不同电极材料的电絮凝过程电解产生的絮体进行了初步分析，结果表明，絮体成分因电极不同而异，不同絮体对重金属离子吸附能力的差异也较大。
    Abstract: The performance of electrocoagulation (EC) process in the treatment of the wastewater containing Cr(Ⅵ) was investigated. The effects of several parameters such as cell voltage, initial concentration, pH value and electrode materials on removal efficiency of EC were studied. The results showed that the removal efficiency of Cr(Ⅵ) with Fe/Fe electrode could reach up to 98.84% when initial concentration was 105 mg/L, cell voltage was 4 V and pH value was 6 after 60 min electrolysis. The removal efficiency of Cr(Ⅵ) increased with the increment of the cell voltage and decreased with the rise of initial concentration and initial pH values of Cr(Ⅵ). It was found that at neutral pH range, Cr(Ⅵ) was mainly separated by adsorption of Fe hydroxide flocs. The components of flocs produced during EC processes were preliminarily analyzed. The results showed that the components of the flocs varied with the different electrode pairs as well as the adsorption capacities of flocs to Cr(Ⅵ).
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  • [1] Mohan D.,Singh K.P.,Singh V.K. Removal of hexavalent chromium from aqueous solution using low-cost activated carbons derived from agricultural waste materials and activated carbon fabric cloth. Industrial and Engineering Chemistry Research,2005,44(4): 1027-1042
    [2] Mohan D.,Singh K.P.,Singh V.K. Trivalent chromium removal from wastewater using low cost activated carbon derived from agricultural waste material and activated carbon fabric cloth. Journal of Hazardous Materials,2006,135(1-3): 280-295
    [3] Akshaya K.V.,Rajesh R.D.,Puspendu B.,et al. A review on chemical coagulation/flocculation technologies for removal of colour from textile wastewaters. Journal of Environmental Management,2012,93(1): 154-168
    [4] Fu F.L.,Xie L.P.,Tang B.,et al. Application of a novel strategy-Advanced Fenton-chemical precipitation to the treatment of strong stability chelated heavy metal containing wastewater. Chemical Engineering Journal,2012,189: 283-287
    [5] Choi H.D.,Cho J.M.,Baek K.,et al. Influence of cationic surfactant on adsorption of Cr(Ⅵ) onto activated carbon. Journal of Hazardous Materials,2009,161(2-3): 1565-1568
    [6] Ahmed A.T.,Wu Y.N.,Li F.T.,et al. Preparation and application of functionalized cellulose acetate/silica composite nanofibrous membrane via electrospinning for Cr(Ⅵ) ion removal from aqueous solution. Journal of Environmental Management,2012,112: 10-16
    [7] Bhatti M.S.,Reddy A.S.,Thukral A.K.,et al. Modeling and optimization of voltage and treatment time for electrocoagulation removal of hexavalent chromium. Desalination,2011,269(1-3): 157-162
    [8] 李向东,冯启言,宋均轲,等. 电絮凝处理煤层气产出水.环境工程学报,2012,6(3): 744-748 Li X.D.,Feng Q.Y.,Song J.K.,et al. Treatment of water produced with coal-bed methane by electrocoagulation. Chinese Journal of Environmental Engineering,2012,6(3): 744-748(in Chinese)
    [9] 陈斌,王海峰,吴明铂,等. 电絮凝处理油田生化出水.环境工程学报,2012,6(7): 2154-2158 Chen B.,Wang H.F.,Wu M.B.,et al. Electrocoagulation treatment of oilfield biochemical sewage. Chinese Journal of Environmental Engineering,2012,6(7): 2154-2158(in Chinese)
    [10] Divagar L.,Dennisa C.,Gautam S. Ferrous and ferric ion generation during iron electrocoagulation. Environmental Science & Technology,2009,43(10): 3853-3859
    [11] Golder A.K., Samanta A.N.,Ray S.,et al. Removal of Cr(Ⅵ) from aqueous solution: Electrocoagulation vs chemical coagulation. Separation Science and Technology,2007,42(10): 2177-2193
    [12] Tugbaömez. The optimization of Cr(Ⅵ) reduction and removal by electrocoagulation using response surface methodology. Journal of Hazardous Materials,2009,162(2-3):1371-1378
    [13] Golder A.K.,Samanta A.N.,Ray S. Removal of Cr3+ by electrocoagulation with multiple electrodes: Bipolar and monopolar configurations. Journal of Hazardous Materials,2007,141(3):653-661
    [14] Keshmirizadeh E.,Somayeh Y.,Mohammad K. R. An investigation on the new operational parameter effective in Cr(Ⅵ) removal efficiency: A study on electrocoagulation by alternating pulse current. Journal of Hazardous Materials,2011,190(1-3):119-124
    [15] Aber S.,Amani-Ghadim A.R.,Mirzajani V. Removal of Cr(Ⅵ) from polluted solutions by electrocoagulation: Modeling of experimental results using artificial neural network. Journal of Hazardous Materials,2009,171(1-3): 484-490
    [16] Arroyo M.G.,Pérez H.V.,Montanés M.T.,et al. Effect of pH and chloride concentration on the removal of hexavalent chromium in a batch electrocoagulation reactor. Journal of Hazardous Materials,2009,169(1-3): 1127-1133
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  • 收稿日期:  2013-10-22
  • 刊出日期:  2014-09-04
刘玉玲, 陆君, 马晓云, 李艳, 林生岭. 电絮凝过程处理含铬废水的工艺及机理[J]. 环境工程学报, 2014, 8(9): 3640-3644.
引用本文: 刘玉玲, 陆君, 马晓云, 李艳, 林生岭. 电絮凝过程处理含铬废水的工艺及机理[J]. 环境工程学报, 2014, 8(9): 3640-3644.
shu
Liu Yuling, Lu Jun, Ma Xiaoyun, Li Yan, Lin Shengling. Technique and mechanism of electrocoagulation process for treatment of wastewater containing chromium[J]. Chinese Journal of Environmental Engineering, 2014, 8(9): 3640-3644.
Citation: Liu Yuling, Lu Jun, Ma Xiaoyun, Li Yan, Lin Shengling. Technique and mechanism of electrocoagulation process for treatment of wastewater containing chromium[J]. Chinese Journal of Environmental Engineering, 2014, 8(9): 3640-3644.
shu

电絮凝过程处理含铬废水的工艺及机理

  • 1. 江苏科技大学环境与化学工程学院, 镇江 212003
  • 收稿日期:  2013-10-22
基金项目:

国家自然科学基金资助项目（51208233）

江苏省自然科学基金资助项目（BK2012079）

摘要: 以六价铬废水为处理对象，采用电絮凝过程研究了槽电压、初始浓度、初始pH值、电极材料等工艺参数对电絮凝过程分离Cr（Ⅵ）离子效率的影响机理。结果表明，采用Fe/Fe电极，对初始浓度为105 mg/L的Cr（Ⅵ）离子废水，最优槽电压为4 V，初始pH值为6，电解60 min，去除率可达到98.84%。Cr（Ⅵ）的去除率随着槽电压的升高而增大，随着初始浓度以及初始pH值的增加而减小。研究发现，初始pH值决定电絮凝过程中Cr（Ⅵ）的主要去除方式，在偏中性范围内Cr（Ⅵ）主要通过絮体吸附作用去除。对不同电极材料的电絮凝过程电解产生的絮体进行了初步分析，结果表明，絮体成分因电极不同而异，不同絮体对重金属离子吸附能力的差异也较大。

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