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光催化氧化降解垃圾渗滤液中溶解性有机物

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贾陈忠, 刘松, 张彩香, 秦巧燕. 光催化氧化降解垃圾渗滤液中溶解性有机物[J]. 环境工程学报, 2013, 7(2): 451-456.
引用本文: 贾陈忠, 刘松, 张彩香, 秦巧燕. 光催化氧化降解垃圾渗滤液中溶解性有机物[J]. 环境工程学报, 2013, 7(2): 451-456.
shu
Jia Chenzhong, Liu Song, Zhang Caixiang, Qin Qiaoyan. Degradation of dissolved organic matter in landfill leachate during photocatalytic treatment process[J]. Chinese Journal of Environmental Engineering, 2013, 7(2): 451-456.
Citation: Jia Chenzhong, Liu Song, Zhang Caixiang, Qin Qiaoyan. Degradation of dissolved organic matter in landfill leachate during photocatalytic treatment process[J]. Chinese Journal of Environmental Engineering, 2013, 7(2): 451-456.
shu

光催化氧化降解垃圾渗滤液中溶解性有机物

  • 1.

    长江大学化学与环境工程学院,荆州434023

  • 2.

    荆州市环境监测中心站,荆州 434108

  • 3.

    中国地质大学环境学院,武汉430074

  • 基金项目:

    国家自然科学基金资助项目(40972156)

    中国地质大学(武汉)生物地质与环境地质国家重点实验室开放项目资助(BGEGF200820)

    长江大学博士科研启动基金项目资助

  • 中图分类号: X703

Degradation of dissolved organic matter in landfill leachate during photocatalytic treatment process

  • 1.

    College of Chemical and Environmental Engineering, Yangtze University, Jingzhou 434023, China

  • 2.

    Jingzhou Municipal Environmental Monitoring Centre, Jingzhou 434108, China

  • 3.

    School of Environmental Studies, China University of Geosciences, Wuhan 430074, China

  • Fund Project:

  • 摘要: 研究了UV-TiO2光催化氧化降解垃圾渗滤液过程中溶解性有机物(DOM)的变化特征。结果表明:在适宜条件下,UV-TiO2光催化氧化降解垃圾渗滤液的色度、COD和DOC的去除率分别可达97%、72%和60%;紫外光谱分析说明渗滤液DOM中包括多种含有共轭双键、羰基的大分子有机物及多环芳香类化合物,不同光催化处理液中DOM具有基本一致的结构单元和官能团;红外光谱分析说明渗滤液DOM中含有大量包括羟基、羧基、氨基和苯环的芳香族化合物,在光催化处理液中这几种官能团都能被有效降解;GC/MS分析结果表明,渗滤液DOM中含有72种有机污染物,醇类、羧酸和酮类分别为25、14和12种;在光催化72 h处理液中,有机物减少为44种;酯类和醇类较多,分别为12种和16种;酮类8种,羧酸没有检出。
    Abstract: The characteristic of dissolved organic matter (DOM) from landfill leachate was studied during UV-TiO2 photocatalytic degradation. The results showed that the removal rates of color, DOC and COD were up to 97%, 72% and 60%, respectively under optimum photocatalytic conditions. The outcomes of the UV spectrum indicated that the DOM of raw leachate contained a variety of macromolecular organic matters and polynuclear aromatic compounds with conjugated double bonds and carbonyl. After the photocatalytic treatment, the DOM of the effluents through different treatment periods had similar chemical structural units and functional groups. The results of FTIR spectrum suggested that the DOM of raw leachate contained large number of aromatic compounds with hydroxyl, carboxyl, amino groups and benzene rings, which were degraded effectively by photocatalysis. GC/MS results presented that the DOM of raw leachate had 72 sorts of organic compounds, including 25, 14 and 12 kinds of alcohols, carboxylic acids and ketones, respectively; while 44 sorts of organic compounds were detected in the effluents after 72 h treatment, including 12 kinds of esters, 16 kinds of alcohols, 8 kinds of ketones and none of carboxylic acids.
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  • [1] He P.J., Xue J.F., Shao L.M., et al. Dissolved organic matter (DOM) in recycled leachate of bioreactor landfill. Water Research, 2006, 40(7):1465-1473
    [2] Ki H.K., Hyun S. S., Heekyung P. Characterization of humic substances present in landfill leachates with different landfill ages and its implications. Water Research, 2002,36(16):4023-4032
    [3] 张彩香,王焰新,祁士华, 等. 垃圾渗滤液中溶解有机质与内分泌干扰物的吸附机理. 地球科学—中国地质大学学报, 2008, 33(3):399-404 Zhang C.X., Wang Y.X., Qi S.H., et al. Adsorption mechanisms between dissolved organic matter and endocrine disruptors from landfill leachate. Earth Science—Journal of China University of Geosciences, 2008,33(3):399-404(in Chinese)
    [4] Demorals J. L., Zamora P. P. Use of advanced oxidation processes to improve the biodegradability of mature landfill leachates. Journal of Hazardous Materials, 2005,123(1-3):181-186
    [5] Wavg F., Smith D. W., El-Din M. G., et al. Application of advanced oxidation methods for landfill leachate treatment—A review. Journal of Environmental Engineering and Science, 2003,2(6): 413-427
    [6] Lee J. M., Kim M. S., Kim B. W. Photodegradation of bisphenol-A with TiO2 immobilized on the glass tubes including the UV light lamps. Water Research, 2004, 38(16):3605-3613
    [7] Jia C.Z., Zhang C.X., Li M.D., et al. Characteristics of organic pollution in landfill leachate and groundwater around MSW by GC-MS with SPE. The 7th International Conference on Calibration and Reliability in Groundwater Modeling "Managing Groundwater and the Environment". Wuhan: China University of Geosciences, 2009.361-364
    [8] Korshin G. V., Li C. W., Benjamin M. M., et al. Monitoring the properties of natural organic matter through UV spectroscopy: A consistent theory. Water Research, 1997,31(7):1787-1795
    [9] 张军政,杨谦,席北斗,等. 垃圾填埋渗滤液溶解性有机物组分的光谱学特性研究. 光谱学与光谱分析, 2008,28(11): 2583-2587 Zhang J.Z., Yang Q., Xi B.D., et al. Study on spectral characteristic of dissolved organic matter fractions extracted from municipal solid waste landfill leachate. Spectroscopy and Spectral Analysis, 2008,28(11):2583-2587(in Chinese)
    [10] Kang K. H., Shin H. S., Park H. Characterization of humic substances present in landfill leachates with different landfill ages and its implications. Water Research, 2002,36(16):4023-4032
    [11] Christensen J. B., Jensen D. L., Gron C., et al. Characterization of the dissolved organic carbon in landfill leachate-polluted groundwater. Water Research, 1998, 32(1):125-135
    [12] Saintfort R. Fate of municipal refuse deposited in sanitary landfills and leachate treatability. Journal of Environmental Science and Health Part a-Environmental Science and Engineering & Toxic and Hazardous Substance Control,1992,A27(2):369-401
    [13] 张兰英, 韩静磊, 安胜姬, 等. 垃圾渗沥液中有机污染物的污染及去除. 中国环境科学, 1998, 18(2):184-188 Zhang L.Y., Han J.L., An S.J., et al. Detection and removal of organic pollutants in refuse leaching. China Environmental Science, 1998,18(2):184-188(in Chinese)
    [14] Clement B., Thomas O. Application of ultra-violet spectrophotometry and gel-permeation chromatography to the characterization of landfill leachates. Environmental Technology, 1995,16(4):367-377
    [15] 占新华, 周立祥, 杨红, 等. 水溶性有机物与多环芳烃结合特征的红外光谱学研究. 土壤学报, 2007, 44(1):47-53 Zhan X.H., Zhou L.X., Yang H., et al. Infrared spectroscopy of DOM-PAHs complexes. Acta Pedologica Sinic, 2007, 44(1):47-53(in Chinese)
    [16] 周文敏,傅德黔,孙宗光. 中国水中优先控制污染物黑名单的确定. 环境科学研究, 1991,4(6):9-12 Zhou W.M., Fu D.Q., Sun Z.G. Determination of black list of China’s priority pollutants in water. Research of Environmental Sciences,1991, 4(6):9-12(in Chinese)
    [17] Larry H.K., William A.T. Priority pollutants: I.A perspective view. Environmental Science & Technology, 1979,13(4):416-423
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出版历程
  • 收稿日期:  2011-10-23
  • 刊出日期:  2013-02-02

光催化氧化降解垃圾渗滤液中溶解性有机物

  • 1. 长江大学化学与环境工程学院,荆州434023
  • 2. 荆州市环境监测中心站,荆州 434108
  • 3. 中国地质大学环境学院,武汉430074
  • 收稿日期:  2011-10-23
基金项目:

国家自然科学基金资助项目(40972156)

中国地质大学(武汉)生物地质与环境地质国家重点实验室开放项目资助(BGEGF200820)

长江大学博士科研启动基金项目资助

摘要: 研究了UV-TiO2光催化氧化降解垃圾渗滤液过程中溶解性有机物(DOM)的变化特征。结果表明:在适宜条件下,UV-TiO2光催化氧化降解垃圾渗滤液的色度、COD和DOC的去除率分别可达97%、72%和60%;紫外光谱分析说明渗滤液DOM中包括多种含有共轭双键、羰基的大分子有机物及多环芳香类化合物,不同光催化处理液中DOM具有基本一致的结构单元和官能团;红外光谱分析说明渗滤液DOM中含有大量包括羟基、羧基、氨基和苯环的芳香族化合物,在光催化处理液中这几种官能团都能被有效降解;GC/MS分析结果表明,渗滤液DOM中含有72种有机污染物,醇类、羧酸和酮类分别为25、14和12种;在光催化72 h处理液中,有机物减少为44种;酯类和醇类较多,分别为12种和16种;酮类8种,羧酸没有检出。

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