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Removal of heavy metal ions from municipal solid waste leachate using coal fly ash as an adsorbent.
J Hazard Mater. 2009 Sep 30; 169(1-3):351-9.JH

Abstract

The purpose of this study was to investigate the possibility of the utilization of coal fly ash as a low cost adsorbent material for the adsorption of heavy metal ions (Zn, Pb, Cd, Mn and Cu) present in the municipal solid waste leachate. Batch experiments were conducted to determine the effect of contact time and fly ash dosage on adsorption of heavy metals. Experimental data were evaluated to find out kinetic characteristics of the adsorption process. The isothermal data could be well described by the Freundlich adsorption model. Kinetic parameters of adsorption such as the pseudo first-order constant, pseudo second-order constant and the intraparticle diffusion rate constant were determined. The fly ash concentration required to achieve maximum heavy metal removal was found to be 2g/L with the removal efficiencies of 39%, 28%, 74%, 42% and 71% for Cu, Mn, Pb, Zn and Cd respectively. The results of the study demonstrated that the fly ash could be used as an effective low cost adsorbent for the removal of heavy metal ions from municipal solid waste leachate.

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Authors+Show Affiliations

Mohan S
Environmental and Water Resources Engineering Division, Indian Institute of Technology Madras, Chennai 600036, India. smohan@iitm.ac.in
Gandhimathi R
No affiliation info available

MeSH

AdsorptionCarbonCitiesCoalCoal AshKineticsMetals, HeavyParticulate MatterRefuse Disposal

Pub Type(s)

Journal Article

Language

eng

PubMed ID

19395171

Citation

Mohan, S, and R Gandhimathi. "Removal of Heavy Metal Ions From Municipal Solid Waste Leachate Using Coal Fly Ash as an Adsorbent." Journal of Hazardous Materials, vol. 169, no. 1-3, 2009, pp. 351-9.
Mohan S, Gandhimathi R. Removal of heavy metal ions from municipal solid waste leachate using coal fly ash as an adsorbent. J Hazard Mater. 2009;169(1-3):351-9.
Mohan, S., & Gandhimathi, R. (2009). Removal of heavy metal ions from municipal solid waste leachate using coal fly ash as an adsorbent. Journal of Hazardous Materials, 169(1-3), 351-9. https://doi.org/10.1016/j.jhazmat.2009.03.104
Mohan S, Gandhimathi R. Removal of Heavy Metal Ions From Municipal Solid Waste Leachate Using Coal Fly Ash as an Adsorbent. J Hazard Mater. 2009 Sep 30;169(1-3):351-9. PubMed PMID: 19395171.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Removal of heavy metal ions from municipal solid waste leachate using coal fly ash as an adsorbent. AU - Mohan,S, AU - Gandhimathi,R, Y1 - 2009/03/31/ PY - 2008/08/03/received PY - 2009/03/13/revised PY - 2009/03/24/accepted PY - 2009/4/28/entrez PY - 2009/4/28/pubmed PY - 2009/9/29/medline SP - 351 EP - 9 JF - Journal of hazardous materials JO - J Hazard Mater VL - 169 IS - 1-3 N2 - The purpose of this study was to investigate the possibility of the utilization of coal fly ash as a low cost adsorbent material for the adsorption of heavy metal ions (Zn, Pb, Cd, Mn and Cu) present in the municipal solid waste leachate. Batch experiments were conducted to determine the effect of contact time and fly ash dosage on adsorption of heavy metals. Experimental data were evaluated to find out kinetic characteristics of the adsorption process. The isothermal data could be well described by the Freundlich adsorption model. Kinetic parameters of adsorption such as the pseudo first-order constant, pseudo second-order constant and the intraparticle diffusion rate constant were determined. The fly ash concentration required to achieve maximum heavy metal removal was found to be 2g/L with the removal efficiencies of 39%, 28%, 74%, 42% and 71% for Cu, Mn, Pb, Zn and Cd respectively. The results of the study demonstrated that the fly ash could be used as an effective low cost adsorbent for the removal of heavy metal ions from municipal solid waste leachate. SN - 1873-3336 UR - https://www.unboundmedicine.com/medline/citation/19395171/Removal_of_heavy_metal_ions_from_municipal_solid_waste_leachate_using_coal_fly_ash_as_an_adsorbent_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0304-3894(09)00505-6 DB - PRIME DP - Unbound Medicine ER -