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混凝+芬顿法对中晚期垃圾渗滤液色度去除

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孙翼虎, 孙铁刚, 李小明, 杨麒, 柳娴, 杨大卜. 混凝+芬顿法对中晚期垃圾渗滤液色度去除[J]. 环境工程学报, 2013, 7(6): 2116-2120.
引用本文: 孙翼虎, 孙铁刚, 李小明, 杨麒, 柳娴, 杨大卜. 混凝+芬顿法对中晚期垃圾渗滤液色度去除[J]. 环境工程学报, 2013, 7(6): 2116-2120.
shu
Sun Yihu, Sun Tiegang, Li Xiaoming, Yang Qi, Liu Xian, Yang Dabo. Color removal in aged landfill leachate by process of coagulation-flocculation and Fenton[J]. Chinese Journal of Environmental Engineering, 2013, 7(6): 2116-2120.
Citation: Sun Yihu, Sun Tiegang, Li Xiaoming, Yang Qi, Liu Xian, Yang Dabo. Color removal in aged landfill leachate by process of coagulation-flocculation and Fenton[J]. Chinese Journal of Environmental Engineering, 2013, 7(6): 2116-2120.
shu

混凝+芬顿法对中晚期垃圾渗滤液色度去除

  • 1.

    湖南大学环境科学与工程学院, 长沙 410082

  • 2.

    湖南迪亚环境工程有限公司, 长沙 410011

  • 基金项目:

    国家自然科学基金资助项目(51078128)

  • 中图分类号: X703.1

Color removal in aged landfill leachate by process of coagulation-flocculation and Fenton

  • 1.

    College of Environmental Science and Engineering, Hunan University, Changsha 410082, China

  • 2.

    Hunan Deeya Environmental Engineering Co. Ltd., 410011, China

  • Fund Project:

  • 摘要: 垃圾渗滤液经一般生化处理后色度很大。对混凝和芬顿法结合深度处理垃圾渗滤液对色度去除进行了研究。混凝段通过中心复合设计(简称CCD)和响应面方法(简称RSM)分析了混凝的色度去除率的响应特征,建立了实际因素的最终方程模型:Y(色度去除率,%)=-553.40+73.74A+229.06B+0.38AB-34.16A2-22.67B2,(Y、A、B分别代表色度去除率、投加量和pH)并对絮凝条件进行优化,得到混凝反应的最佳优化条件:投加量1.11 g/L,pH 5.06,及在此条件下的去除率67.2%。在芬顿段,将芬顿反应对水中亲水性有机物相对含量(UV254)与对色度的去除特征相结合进行了研究,证明色度的去除跟该类有机物的去除有关,色度去除率最优值条件选择为H2O2/COD=1.0,Fe2+/H2O2=0.35:1,而初始pH=2.5时对色度的去除达到99%以上。整个工艺出水可达到达标排放标(GB16889-2008)。
    Abstract: Older landfill leachate is characterized by high color after general biological treatment. In the present study, the advanced treatment coagulation-flocculation combined with Fenton oxidation to remove color from landfill leachate was investigated. In the coagulation unit, color removal rate as a response was analyzed and process conditions were optimized via response surface methodology (RSM) using central composite design (CCD). The final equation in terms of actual factors was established: Y=-553.40+73.74A+229.06B+0.38AB-34.16A2-22.67B2 (Y,A,B for color removal rate, dosage and pH, respectively), and the optimum conditions were dosage of 1.11 g/L,pH of 5.06, and the color remove rate of effluent was 67.2%. Then, the removal features of the color accompanied with the removal features of hydrophilic organic matter(indicated by UV254) in Fenton unit was researched, and it was proved there should be a certain relationship between color removal and hydrophilic organic matter removal. The optimum conditions in Fenton unit were H2O2/COD=1.0,Fe2+/H2O2=0.35:1,and the color removal rate could be achieved above 99% when initial pH=2.5.The final effluent of the whole process met the standard for discharge (GB16889-2008).
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  • [1] Anastasios I. Zouboulis, Chai Xiaoli, Ioannis A. Katsoyiannis., et al. The application of bioflocculant for the removal of humic acids from stabilized landfill leachates. Journal of Environmental Management, 2004,70(1):35-41
    [2] Ahmedna M., Marshall W. E., Rao R. M., et al. Production of granular activated carbons from select agricultural by-products and evaluation of their physical, chemical and adsorption properties. Bioresource Technology, 2000,71(2):113-123
    [3] Manu B.,Sanjeev Chaudhari. Anaerobic decolorization of simulated textile wastewater containing azo dyes. Bioresource Technology, 2002,82(3):225-231
    [4] Hamidi Abdul Aziz, Salina Alias, Mohd. Nordin Adlan, et al. Colour removal from landfill leachate by coagulation and flocculation processes. Bioresource Technology,2007,98(1): 218-220
    [5] 李军,王磊,彭锋,等.Fenton法深度处理垃圾渗滤液的试验.北京工业大学学报,2008,34(3):24-29 Li J., Wang L., Peng F., et al. Advanced treatment of landfill leachte by Fenton oxidation-coagulatian process. Journal of Beijing University Technology, 2008,34(3):24-29(in Chinese)
    [6] 李军,王磊,陈萍,等.Fenton氧化/混凝法后续处理垃圾渗滤液研究.中国给水排水,2008,24(3):64-67 Li J., Wang L.,Chen P., et al. Experimental study on Fenton oxidation/coagulation process in subsequent treatment of landfill leachate. China Water and Wastewater, 2008, 24(3):64-67(in Chinese)
    [7] 尹军,蒋宝军,吴晓燕,等.混凝与Fenton联用处理垃圾渗滤液的效能及成本.环境工程学报,2010,4(5):988-992 Yin J., Jiang B.J., Wu X.X., et al. Effect and cost of coagulation combined with Fenton for leachate treatment. Chinese Journal of Environmental Engineering, 2010, 4(5): 988-992(in Chinese)
    [8] 林星杰,杨慧芬,宋存义,等.UV254在水质监测中的应用研究.能源与环境,2006,(1):22-24 Lin X. J.,Yang H. F.,Song C. Y., et al. The application of UV254 in water quality monitoring. Energy and Environment, 2006,(1):22-24(in Chinese)
    [9] 蒙哥马利(美).实验设计与分析(第6版).北京:人民邮电出版社,2009.349-354
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    [11] 王宝贞,王琳.城市固体废物渗滤液处理与处置.北京:化学工业出版社,2005.253-254
    [12] Nordin M. Y., Venkatesh V. C., Sharif S., et al.Application of response surface methodology in describingthe performance of coated carbide tools when turning AISI 1045 steel. Journal of Materials Processing Technology, 2004,145(1):46-58
    [13] 阮复昌,莫炳禄,徐国想,等.铁系净水剂混凝过程的计算机模拟.化学反应工程与工艺,1998,(1):66-70 Ruan F. C., Mo B. L., Xu G. X., et al. Computer simulation for the coagulation of iron-based water clarifying agent. Chemical Reaction Engineering and Technology, 1998,(1):66-70(in Chinese)
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出版历程
  • 收稿日期:  2012-08-23
  • 刊出日期:  2013-06-11
孙翼虎, 孙铁刚, 李小明, 杨麒, 柳娴, 杨大卜. 混凝+芬顿法对中晚期垃圾渗滤液色度去除[J]. 环境工程学报, 2013, 7(6): 2116-2120.
引用本文: 孙翼虎, 孙铁刚, 李小明, 杨麒, 柳娴, 杨大卜. 混凝+芬顿法对中晚期垃圾渗滤液色度去除[J]. 环境工程学报, 2013, 7(6): 2116-2120.
shu
Sun Yihu, Sun Tiegang, Li Xiaoming, Yang Qi, Liu Xian, Yang Dabo. Color removal in aged landfill leachate by process of coagulation-flocculation and Fenton[J]. Chinese Journal of Environmental Engineering, 2013, 7(6): 2116-2120.
Citation: Sun Yihu, Sun Tiegang, Li Xiaoming, Yang Qi, Liu Xian, Yang Dabo. Color removal in aged landfill leachate by process of coagulation-flocculation and Fenton[J]. Chinese Journal of Environmental Engineering, 2013, 7(6): 2116-2120.
shu

混凝+芬顿法对中晚期垃圾渗滤液色度去除

  • 1. 湖南大学环境科学与工程学院, 长沙 410082
  • 2. 湖南迪亚环境工程有限公司, 长沙 410011
  • 收稿日期:  2012-08-23
基金项目:

国家自然科学基金资助项目(51078128)

摘要: 垃圾渗滤液经一般生化处理后色度很大。对混凝和芬顿法结合深度处理垃圾渗滤液对色度去除进行了研究。混凝段通过中心复合设计(简称CCD)和响应面方法(简称RSM)分析了混凝的色度去除率的响应特征,建立了实际因素的最终方程模型:Y(色度去除率,%)=-553.40+73.74A+229.06B+0.38AB-34.16A2-22.67B2,(Y、A、B分别代表色度去除率、投加量和pH)并对絮凝条件进行优化,得到混凝反应的最佳优化条件:投加量1.11 g/L,pH 5.06,及在此条件下的去除率67.2%。在芬顿段,将芬顿反应对水中亲水性有机物相对含量(UV254)与对色度的去除特征相结合进行了研究,证明色度的去除跟该类有机物的去除有关,色度去除率最优值条件选择为H2O2/COD=1.0,Fe2+/H2O2=0.35:1,而初始pH=2.5时对色度的去除达到99%以上。整个工艺出水可达到达标排放标(GB16889-2008)。

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