The sequestration of heavy metals contaminating the wonderfonteinspruit catchment area using natural zeolite

P. P. Diale, S. S.L. Mkhize, E. Muzenda, J. Zimba

    Research output: Contribution to journalArticle

    1 Citation (Scopus)

    Abstract

    For more than 120 years, gold mining formed the backbone the South Africa's economy. The consequence of mine closure was observed in large-scale land degradation and widespread pollution of surface water and groundwater. This paper investigates the feasibility of using natural zeolite in removing heavy metals contaminating the Wonderfonteinspruit Catchment Area (WCA), a water stream with high levels of heavy metals and radionuclide pollution. Batch experiments were conducted to study the adsorption behavior of natural zeolite with respect to Fe2+, Mn2+, Ni2+, and Zn2+. The data was analysed using the Langmuir and Freudlich isotherms. Langmuir was found to correlate the adsorption of Fe2+, Mn2+, Ni2+, and Zn2+ better, with the adsorption capacity of 11.9 mg/g, 1.2 mg/g, 1.3 mg/g, and 14.7 mg/g, respectively. Two kinetic models namely, pseudo-first order and pseudo second order were also tested to fit the data. Pseudo-second order equation was found to be the best fit for the adsorption of heavy metals by natural zeolite. Zeolite functionalization with humic acid increased its uptake ability.

    Original languageEnglish
    Pages (from-to)196-202
    Number of pages7
    JournalWorld Academy of Science, Engineering and Technology
    Volume50
    Publication statusPublished - Feb 2011

    Fingerprint

    Catchments
    Heavy metals
    Adsorption
    Pollution
    Gold mines
    Surface waters
    Radioisotopes
    Isotherms
    Groundwater
    Degradation
    Kinetics
    Water
    Experiments

    All Science Journal Classification (ASJC) codes

    • Engineering(all)

    Cite this

    @article{6f81f101946940bda8abf3d626bc8b03,
    title = "The sequestration of heavy metals contaminating the wonderfonteinspruit catchment area using natural zeolite",
    abstract = "For more than 120 years, gold mining formed the backbone the South Africa's economy. The consequence of mine closure was observed in large-scale land degradation and widespread pollution of surface water and groundwater. This paper investigates the feasibility of using natural zeolite in removing heavy metals contaminating the Wonderfonteinspruit Catchment Area (WCA), a water stream with high levels of heavy metals and radionuclide pollution. Batch experiments were conducted to study the adsorption behavior of natural zeolite with respect to Fe2+, Mn2+, Ni2+, and Zn2+. The data was analysed using the Langmuir and Freudlich isotherms. Langmuir was found to correlate the adsorption of Fe2+, Mn2+, Ni2+, and Zn2+ better, with the adsorption capacity of 11.9 mg/g, 1.2 mg/g, 1.3 mg/g, and 14.7 mg/g, respectively. Two kinetic models namely, pseudo-first order and pseudo second order were also tested to fit the data. Pseudo-second order equation was found to be the best fit for the adsorption of heavy metals by natural zeolite. Zeolite functionalization with humic acid increased its uptake ability.",
    author = "Diale, {P. P.} and Mkhize, {S. S.L.} and E. Muzenda and J. Zimba",
    year = "2011",
    month = "2",
    language = "English",
    volume = "50",
    pages = "196--202",
    journal = "World Academy of Science, Engineering and Technology",
    issn = "2010-376X",
    publisher = "World Academy of Science Engineering and Technology",

    }

    The sequestration of heavy metals contaminating the wonderfonteinspruit catchment area using natural zeolite. / Diale, P. P.; Mkhize, S. S.L.; Muzenda, E.; Zimba, J.

    In: World Academy of Science, Engineering and Technology, Vol. 50, 02.2011, p. 196-202.

    Research output: Contribution to journalArticle

    TY - JOUR

    T1 - The sequestration of heavy metals contaminating the wonderfonteinspruit catchment area using natural zeolite

    AU - Diale, P. P.

    AU - Mkhize, S. S.L.

    AU - Muzenda, E.

    AU - Zimba, J.

    PY - 2011/2

    Y1 - 2011/2

    N2 - For more than 120 years, gold mining formed the backbone the South Africa's economy. The consequence of mine closure was observed in large-scale land degradation and widespread pollution of surface water and groundwater. This paper investigates the feasibility of using natural zeolite in removing heavy metals contaminating the Wonderfonteinspruit Catchment Area (WCA), a water stream with high levels of heavy metals and radionuclide pollution. Batch experiments were conducted to study the adsorption behavior of natural zeolite with respect to Fe2+, Mn2+, Ni2+, and Zn2+. The data was analysed using the Langmuir and Freudlich isotherms. Langmuir was found to correlate the adsorption of Fe2+, Mn2+, Ni2+, and Zn2+ better, with the adsorption capacity of 11.9 mg/g, 1.2 mg/g, 1.3 mg/g, and 14.7 mg/g, respectively. Two kinetic models namely, pseudo-first order and pseudo second order were also tested to fit the data. Pseudo-second order equation was found to be the best fit for the adsorption of heavy metals by natural zeolite. Zeolite functionalization with humic acid increased its uptake ability.

    AB - For more than 120 years, gold mining formed the backbone the South Africa's economy. The consequence of mine closure was observed in large-scale land degradation and widespread pollution of surface water and groundwater. This paper investigates the feasibility of using natural zeolite in removing heavy metals contaminating the Wonderfonteinspruit Catchment Area (WCA), a water stream with high levels of heavy metals and radionuclide pollution. Batch experiments were conducted to study the adsorption behavior of natural zeolite with respect to Fe2+, Mn2+, Ni2+, and Zn2+. The data was analysed using the Langmuir and Freudlich isotherms. Langmuir was found to correlate the adsorption of Fe2+, Mn2+, Ni2+, and Zn2+ better, with the adsorption capacity of 11.9 mg/g, 1.2 mg/g, 1.3 mg/g, and 14.7 mg/g, respectively. Two kinetic models namely, pseudo-first order and pseudo second order were also tested to fit the data. Pseudo-second order equation was found to be the best fit for the adsorption of heavy metals by natural zeolite. Zeolite functionalization with humic acid increased its uptake ability.

    UR - http://www.scopus.com/inward/record.url?scp=84871325899&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=84871325899&partnerID=8YFLogxK

    M3 - Article

    VL - 50

    SP - 196

    EP - 202

    JO - World Academy of Science, Engineering and Technology

    JF - World Academy of Science, Engineering and Technology

    SN - 2010-376X

    ER -