Hostname: page-component-848d4c4894-2pzkn Total loading time: 0 Render date: 2024-04-30T12:43:19.369Z Has data issue: false hasContentIssue false
  • English
  • Français

Treatment of Municipal Landfill Leachate with Organically Modified Bentonite

Published online by Cambridge University Press:  01 January 2024

Hui Ling ,
Anhuai Lu ,
Changqiu Wang ,
Yan Li ,
Peng Chen ,
Jiangong Zhou  and
Jian Wang
Hui Ling
Affiliation:
Orogenic Belts and Crustal Evolution Key Laboratory, School of Earth and Space Sciences, Peking University, Beijing 100871, China
Anhuai Lu*
Affiliation:
Orogenic Belts and Crustal Evolution Key Laboratory, School of Earth and Space Sciences, Peking University, Beijing 100871, China
Changqiu Wang
Affiliation:
Orogenic Belts and Crustal Evolution Key Laboratory, School of Earth and Space Sciences, Peking University, Beijing 100871, China
Yan Li
Affiliation:
Orogenic Belts and Crustal Evolution Key Laboratory, School of Earth and Space Sciences, Peking University, Beijing 100871, China
Peng Chen
Affiliation:
Beijing Environment Sanitation Engineering Group Co., Ltd., Beijing 100067, China
Jiangong Zhou
Affiliation:
Orogenic Belts and Crustal Evolution Key Laboratory, School of Earth and Space Sciences, Peking University, Beijing 100871, China
Jian Wang
Affiliation:
Orogenic Belts and Crustal Evolution Key Laboratory, School of Earth and Space Sciences, Peking University, Beijing 100871, China
*
* E-mail address of corresponding author: anlu@pku.edu.cn
Get access Rights & Permissions [Opens in a new window]

Abstract

Landfill leachate is one of the most difficult effluents with which to deal from an environmental perspective because of its concentration and complex composition, including refractory and toxic components such as heavy metals or xenobiotic organic compounds. The objective of the present study was to use organically modified bentonite (OMB) to dispose of landfill leachate >10 y old. The OMB was synthesized using a new method, which removed four steps (filtering, washing, drying, and grinding) from the traditional process. After treatment using OMB, the chemical oxygen demand concentration (COD concentration, an index of the organic pollutants in the landfill leachate, was determined using the potassium dichromate method) of the landfill leachate sample decreased from 2400 to 245 mg/L in 5 h, i.e. the organic pollutants reduction efficiency was as high as 90%. Gas chromatography-mass spectrometry results indicated that most of the organic compounds were removed during the process. The modified and unmodified bentonite contained in the OMB deal with the hydrophobic and hydrophilic organic pollutants, respectively, resulting in significant degradation of the leachate. The study results have provided a new cost-effective method for treatment of landfill leachate.

Keywords

HydrophilicityHydrophobicityLandfill LeachateOrganic PollutantsOrganically Modified Bentonite (OMB)
Type
Article
Information
Clays and Clay Minerals , Volume 59 , Issue 5 , October 2011 , pp. 518 - 524
Copyright
Copyright © Clay Minerals Society 2011

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Bortolotto, T. Bertoldo, J.B. da Silverira, F.Z. Defaveri, T.M. Silvano, J. and Pich, C.T., 2009 Evaluation of the toxic and genotoxic potential of landfill leachate using bioassays Environmental Toxicology and Pharmacology 28 288–293 10.1016/j.etap.2009.05.007.CrossRefGoogle ScholarPubMed
Chen, J.M. Gong, G. Zhao, L.Q. and Sun, X.C., 2000 Determination of cation exchange capacity of expansive soils Rock and mineral analysis 19 152–153.Google Scholar
Chian, E.S.K., 1997 Stability of organic matter in landfill leachate Water Research 11 225–232 10.1016/0043-1354(77)90130-0.CrossRefGoogle Scholar
Chiou, C.T. Peters, L.J. and Freed, V.H., 1979 A physical concept of soil-water equilibria for nonionic organic compounds Science 206 831–832 10.1126/science.206.4420.831.CrossRefGoogle ScholarPubMed
Colomer Mendoza, F.J. and Gallardo Izquierdo, A., 2009 Environmental risk index: A tool to assess the safety of dams for leachate Journal of Hazardous Materials 162 1–9 10.1016/j.jhazmat.2008.05.018.CrossRefGoogle ScholarPubMed
Erdal, E., 2009 Removal of basic dye by modified Unye bentonite Journal of Hazardous Materials 162 1355–1363 10.1016/j.jhazmat.2008.06.016.Google Scholar
Fujita, Y. Ding, W.H. and Reinhard, M., 1996 Identification of wastewater dissolved organic carbon characteristics in reclaimed wastewater and recharged groundwater Water Environment Research 68 867–876 10.2175/106143096X127866.CrossRefGoogle Scholar
Gotvajn, A. Tišler, T. and Končan, J.Z., 2009 Comparison of different treatment strategies for industrial landfill leachate Journal of Hazardous Materials 162 1446–1456 10.1016/j.jhazmat.2008.06.037.CrossRefGoogle ScholarPubMed
Han, L.R. Lu, A.H. and Zheng, H., 2001 The properties for organo-bentonites to adsorb phenol from refuse percolate Environmental Chemistry 20 460–465.Google Scholar
Harmsen, J., 1983 Identification of organic compounds in leachate from a waste tip Water Research 17 699–712 10.1016/0043-1354(83)90239-7.CrossRefGoogle Scholar
Kaufhold, S. Dohrmann, R. and Klinkenberg, M., 2010 Water-uptake capacity of bentonites Clays and Clay Minerals 58 37–43 10.1346/CCMN.2010.0580103.CrossRefGoogle Scholar
Kjeldsen, P. Barlaz, M.A. and Rooker, A.P., 2002 Present and long-term composition of MSW landfill leachate: A review Critical Reviews in Environment Science and technology 32 297–336 10.1080/10643380290813462.CrossRefGoogle Scholar
Lee, J.F. Mortland, M.M. and Boyd, S.A., 1989 Shape selective adsorption of aromatic compounds from water by tetramethylammonium-smectite Journal of the Chemical Society Faraday Transactions 85 2953–2962 10.1039/f19898502953.CrossRefGoogle Scholar
Lee, J.F. Mortland, M.M. and Chiou, C.T., 1990 Adsorption of benzene, toluene, and xylene by two tetramethylammonium—smectites having different charge densities Clays and Clay Minerals 38 113–120 10.1346/CCMN.1990.0380201.CrossRefGoogle Scholar
Leenheer, J.A. and Croue, J.P., 2003 Characterizing aquatic dissolved organic matter Environmental Science & Technology 37 18–26 10.1021/es032333c.CrossRefGoogle ScholarPubMed
Li, J.W. Zhu, L.Z. and Cai, J.W., 2007 Sorption characteristics of surfactant onto bentonite using microwave irradiation Chinese Journal of Environmental Science 28 2642–2645.Google ScholarPubMed
Ling, H. Lu, A.H. and Wang, C.Q., 2011 A new method for the preparation of modified bentonite used in organic wastewater treatment Acta Petrologica et Mineralogica 30 136–137.Google Scholar
Liu, J. Bao, L.F. and Wang, P., 2003 Analyses of organic pollutant components in leachate by combined GC-MS technique Techniques and Equipment for Environmental Pollution Control 4 31–33.Google Scholar
Liu, S. Gao, W.Y. and Jia, J., 2010 Study on the organic compounds of landfill leachate before and after recirculation treatment by GC-MS method Applied Chemical Industry 39 543–548.Google Scholar
Lu, A.H., 2005 Mineralogical method — the fourth category of pollution treatment methods Earth Science Frontiers 12 197–204.Google Scholar
Lu, A.H. Zhou, J.G. and Wang, C.Q., 2007 A method for treating metaphase and late landfill leachate .Google Scholar
Ni, J.R. Shao, S.Y. and Ye, Z.F., 2004 The characteristics and treatment technology of landfill leachate Journal of Basic Science and Engineering 12 148–150.Google Scholar
Ozdemir, A. and Keskin, C.S., 2009 Removal of a binary dye mixture of congo red and malachite green from aqueous solutions using a bentonite adsorbent Clays and Clay Minerals 57 695–705 10.1346/CCMN.2009.0570603.CrossRefGoogle Scholar
Shao, H. Sun, L. and Li, H., 2008 Pretreatment of high strength landfill leachate by modified bentonite Environmental Science & Technology 31 157–159.Google Scholar
Sharmasarkar, S. Jaynes, W.F. and Vance, G.F., 2000 BTEX sorption by montmorillonite organoclays: TMPA, ADAM, HDTMA Water Air and Soil Pollution 119 257–273 10.1023/A:1005167524630.CrossRefGoogle Scholar
Smith, J.A. and Jaffe, P.R., 1994 Benzene transport through landfill liners containing organophilic bentonite Journal of Environmental Engineering 120 1559–1575 10.1061/(ASCE)0733-9372(1994)120:6(1559).CrossRefGoogle Scholar
Wang, J. Wang, C.Q. Lu, A.H. Ling, H. and Fan, C.Z., 2010 Removal of ammonium-nitrogen as struvite crystallization from landfill leachate Acta Mineralogica Sinica 30 27 10.1016/j.chnaes.2009.12.005.Google Scholar
Xu, L.H. and Zhu, L.Z., 2009 Structures of OTMA- and DODMA-bentonite and their sorption characteristics towards organic compounds Journal of Colloid and Interface Science 331 8–14 10.1016/j.jcis.2008.11.030.CrossRefGoogle ScholarPubMed
Yang, L.Y., 2004 Study on Mechanism and Application of Combined Treatment of Organic Contaminants using Organic Montmorillonite and Microorganisms Beijing, China China Environment Science Press 12.Google Scholar
Zhou, J.G., 2007 Experimental study on combined treatment of municipal landfill leachate from Beijing landfill sites by a mineralogical method Beijing, China PhD thesis, Peking University 66–68.Google Scholar
Zhou, J.G. Wang, C.Q. Lu, A.H. and Liu, X.J., 2007 An experimental study of the treatment of biorefractory landfill leachate by combination of natural bentonite and modified bentonite Acta Petrologica et Mineralogica 26 499–504.Google Scholar
Zhu, L.Z. and Chen, B.L., 2006 Organic Bentonite and its Application in Pollution Treatment Beijing, China Science press 13–15.Google Scholar
Zhu, L.Z. and Chen, B.L., 2000 Partition behavior of polycyclic aromatic hydrocarbons between water and organobentonites China Environmental Science 20 119–123.Google Scholar
Zhu, L. Ren, X. and Yu, S., 1998 Use of cetyltrimethylammonium bromide-bentonite to remove organic contaminants of varying polar character from water Environmental Science & Technology 32 3374–3378 10.1021/es980353m.CrossRefGoogle Scholar