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Int. J. Environ. Res. Public Health 2012, 9(5), 1581-1592; doi:10.3390/ijerph9051581

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

1
Department of Civil Engineering, Karadeniz Technical University, Trabzon 61080, Turkey
2
Department of Environmental Engineering, Ondokuz Mayis University, Samsun 55139, Turkey
*
Author to whom correspondence should be addressed.
Received: 26 March 2012 / Revised: 25 April 2012 / Accepted: 27 April 2012 / Published: 3 May 2012
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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 (NO3-N), ammonium-nitrogen (NH4-N), phosphate (PO4), 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 NO3, NH4, PO4, 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 NO3, PO4 and COD 83.2, 91.0 and 62.5%, respectively, but it was unsuccessful in reducing NH4 (1.5%). View Full-Text
Keywords: landfill liner; leachate treatment; natural zeolite; perlite; bentonite landfill liner; leachate treatment; natural zeolite; perlite; bentonite
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Ozel, U.; Akdemir, A.; Ergun, O.N. Utilization of Natural Zeolite and Perlite as Landfill Liners for in Situ Leachate Treatment in Landfills. Int. J. Environ. Res. Public Health 2012, 9, 1581-1592.

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Int. J. Environ. Res. Public Health EISSN 1660-4601 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
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