International Journal of
Physical Sciences

  • Abbreviation: Int. J. Phys. Sci.
  • Language: English
  • ISSN: 1992-1950
  • DOI: 10.5897/IJPS
  • Start Year: 2006
  • Published Articles: 2563

Full Length Research Paper

Changes of hydraulic conductivity of silty clayey sand soil under the effects of municipal solid waste leachate

Afshin Asadi1*, Bujang B. K. Huat2, Hossein Moayedi3, Nader Shariatmadari4 and Alireza Parsaie5
1Department of Civil Engineering, Isfahan Sciences and Research Branch, Islamic Azad University, Isfahan, Iran. 2Department of Civil Engineering, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia. 3Department of Civil Engineering, Estahban Branch, Islamic Azad University, Estahban, Iran. 4College of Civil Engineering, Iran University of Science and Technology, Tehran, Iran. 5Department of Civil Engineering, Khorasgan Branch, Islamic Azad University, Isfahan, Iran.
Email: [email protected]

  •  Accepted: 29 April 2011
  •  Published: 18 June 2011

Abstract

Effect of municipal solid waste (MSW) on the hydraulic conductivity of soil is an important factor for designing liner systems. Leachate samples were collected within a landfill and a composting factory leachate lagoon. Soil samples from the bottom of the Esfahan, Iran, landfill were collected. Effects of the leachates on permeability of the soil samples were investigated. The results of study showed that at the highest level of leachate concentration (100%), the soil showed 20% increase in permeability (k) value from compost leachate and 10% reduction in landfill leachates. Compost and landfill leachates had shown contrasting impact on the soil permeability.

 

Key words: Hydraulic conductivity, landfills, leachate.