Containment and attenuating layers: An affordable strategy that preserves soil and water from landfill pollution

Waste Management
Mercedes RegadíoJaime Cuevas

Abstract

The performance of a widely distributed natural clay to attenuate contaminants released from an old landfill was investigated. The objective is to evaluate its potential use as a barrier for waste containment systems. Core samples of the natural clay were collected below the landfill and their parameters distribution with depth was determined. Partition coefficients, retardation factors and percentage values of pollutants concentrations, revealed a rapid decrease of contaminants with depth. The background values of the pollutants were below the maximum limits for drinking and irrigation water and with no need of reactors, collectors, aeration or recirculation systems. Impermeable waste capping is discouraged in order to decrease leachate toxicity, decomposition time and conservative species, and in order to avoid high-reducing conditions that would mobilize redox-sensitive contaminants. A review on leachate-composition evolution and on natural-attenuation processes was undertaken to understand the interactions leachate-substratum, which is essential to properly estimate the leachate transport and implement the attenuation strategy. This strategy complements the traditional containment one regarding (1) the susceptibility of eng...Continue Reading

References

Aug 30, 2001·Waste Management & Research : the Journal of the International Solid Wastes and Public Cleansing Association, ISWA·S F ThorntonJ H Tellam
Nov 9, 2001·Waste Management & Research : the Journal of the International Solid Wastes and Public Cleansing Association, ISWA·P Kjeldsen, M Christophersen
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Jun 10, 2006·Environmental Monitoring and Assessment·Müfide BanarMine Kürkçüoğlu
Jan 30, 2007·Journal of Hazardous Materials·Dong JunHong Mei
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Dec 7, 2007·Bioresource Technology·Dorota Kulikowska, Ewa Klimiuk
Jun 26, 2008·Journal of Environmental Sciences (China)·Shouliang HuoHongliang Liu
Mar 23, 2011·Journal of Environmental Management·Jaime CuevasSantiago Leguey
Jul 13, 2011·Waste Management & Research : the Journal of the International Solid Wastes and Public Cleansing Association, ISWA·Remziye YaziciM Sinan Bilgili
Jul 31, 2013·The Science of the Total Environment·M RegadíoJ Cuevas

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Citations

Jan 29, 2019·Environmental Monitoring and Assessment·Mehdi VahabianSafar Marofi
Sep 11, 2019·Water Environment Research : a Research Publication of the Water Environment Federation·Lina M RouidiOuafia Balamane
Mar 2, 2019·Waste Management & Research : the Journal of the International Solid Wastes and Public Cleansing Association, ISWA·Faisal A Osra, George W Kajjumba

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