Effect of Leachate Penetration on the Chemical and Physical Properties of MSW Landfill Soils (Case Study: Tonekabon Landfill)

Document Type : Research Article


Civil and Environmental Engineering, Babol Noshirvani University of Technology, Babol, I.R. IRAN


In this research the contamination and concentration of various elements were studied by measuring chemical and biological parameters such as chloride and bicarbonate, BOD5, COD, pH, EC, TDS and metals (Cr, Cd, Pb, Zn, Fe, and Mn) in the leachate samples and also moisture, chloride, potassium, bicarbonate  and pH in the various depth of landfill soil samples.The value of BOD5/COD was 0.35, this result shows that this site is old landfill and leachate is biodegradable. Due to composition of organic compounds of leachate in soil and production of organic acids and carbon dioxide, pH of soil initially reduces and liquid limit increases but plastic limit will not change much. As a result plastic range increases but in the depth of the soil more increase occurred.


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