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Utilization of Natural Zeolite and Perlite as Landfill Liners for in Situ Leachate Treatment in Landfills

Author

Listed:
  • Ummukulsum Ozel

    (Department of Civil Engineering, Karadeniz Technical University, Trabzon 61080, Turkey)

  • Andaç Akdemir

    (Department of Environmental Engineering, Ondokuz Mayis University, Samsun 55139, Turkey)

  • Osman Nuri Ergun

    (Department of Environmental Engineering, Ondokuz Mayis University, Samsun 55139, Turkey)

Abstract

The potential long term environmental impacts of a landfill on groundwater quality depend on its liner material properties. In case synthetic liner materials are damaged during the construction or operation, many of the original chemical and biological constituents are removed by filtration and the adsorptive action of natural liner materials such as natural zeolite, perlite and bentonite minerals. Before leachate treatment, reduction of these constituents is important not only to leachate percolation, but also treatment cost and efficiency. In this study, the pollutant removal efficiency from the leachate was investigated for natural natural zeolite, expanded perlite and bentonite. Experimental studies was performed in boxes made of glass and with 1:10 sloping. Leachate quantity was determined and pH, electrical conductivity (EC), nitrate (NO 3 -N), ammonium-nitrogen (NH 4 -N), phosphate (PO 4 ), chemical oxygen demand (COD) and organic matter in leachate samples were measured and the measurement was compared with control process (System 4). The results showed that natural zeolite was effective in removing NO 3 , NH 4 , PO 4 , COD and organic matter with removal efficiencies of 91.20, 95.6, 95.5, 83.4 and 87.8%, respectively. Expanded perlite has high efficiency removing of NO 3 , PO 4 and COD 83.2, 91.0 and 62.5%, respectively, but it was unsuccessful in reducing NH 4 (1.5%).

Suggested Citation

  • Ummukulsum Ozel & Andaç Akdemir & Osman Nuri Ergun, 2012. "Utilization of Natural Zeolite and Perlite as Landfill Liners for in Situ Leachate Treatment in Landfills," IJERPH, MDPI, vol. 9(5), pages 1-12, May.
    • Handle: RePEc:gam:jijerp:v:9:y:2012:i:5:p:1581-1592:d:17513
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