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Assessment of Heavy Metals in Landfill Leachate: A Case Study of Thohoyandou Landfill, Limpopo Province, South Africa

In: Heavy Metals

Author

Listed:
  • Joshua Edokpayi
  • Olatunde Samod Durowoju
  • John Odiyo

Abstract

Landfilling of solid wastes has gained increasing acceptance due to the ease of disposal. However, such activity has consequences if the landfill site is not designed according to specification or does not have a leachate liner and collection system. Leachate possesses potential risk to surface and groundwater aquifer within the area surrounding the landfill site. The aim of this chapter is to assess the physicochemical parameters and heavy metal levels in leachate generated from a periurban landfill site situated in Thohoyandou, Limpopo Province, South Africa. Physicochemical parameters were measured onsite using standard methods, while heavy metals were analyzed with flame atomic absorption spectrometer (FAAS) after nitric acid digestion. pH, conductivity and turbidity values ranged from 6.97 to 7.68, 426 to 2288 ?S/cm and 12.78 to 295.5 NTU, respectively. Most levels of the determined heavy metals exceeded the effluent discharge guideline limit of South African Department of Water Affairs. This could potentially spike their levels in surface and groundwater. Adequate measures should be put in place to manage the leachate generated from landfill sites.

Suggested Citation

  • Joshua Edokpayi & Olatunde Samod Durowoju & John Odiyo, 2018. "Assessment of Heavy Metals in Landfill Leachate: A Case Study of Thohoyandou Landfill, Limpopo Province, South Africa," Chapters, in: Hosam M. Saleh & Refaat Fekry Eid Sayed (ed.), Heavy Metals, IntechOpen.
    • Handle: RePEc:ito:pchaps:134427
    DOI: 10.5772/intechopen.74009
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    More about this item

    Keywords

    groundwater; heavy metals; landfill; leachate; potential risk; surface water;
    All these keywords.

    JEL classification:

    • Q55 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Environmental Economics - - - Environmental Economics: Technological Innovation

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