Physico-chemical characterization of landfill leachates: A comparison case between Tangier and Agadir(Morocco)

Leachate,the liquid percolating through solid waste,remains a major concern for managers of the new controlled landfills in morocco,especially those built under european standards i.e.,with waterproof membrane and leachate collecting systems. the center of urban waste disposal of agadir is one of these controlled landfills. after a few years of operation,the involved stakeholders are now facing the major challenge,which is dealing with the quantitative and qualitative issues of the subsequent leachate,. the aim of this study is to characterize and compare two different leachate; one from the controlled landfill of agadir,where the analysis of the composition of heavy metals revealed a significant iron load of these effluents (36.01 mg / l),whereas,the other from the uncontrolled waste disposal of tangier,where analyzes shows a heavy load of the leachate tss,chlorides and iron probably due to industrial activities. leachate samples were collected,quarterly between january 2012 and february 2013,and analyzed for various physico-chemical parameters to estimate its pollution potential. monitoring the variation over time of the relevant physico-chemical parameters of leachate in a storage center of urban waste is an important tool for controlling the nature of the waste flow,which allows the detection of abnormalities not normally seen by visual inspection.