“…This permanent contact with landfill leachate leads to a significant water pollution (Ragle et al, 1995;Howard et al, 1996;Jensen et al, 1999;Baun et al, 2000;Khattabi et al, 2002). Here, wastes have been land filled since 1983 that include domestic, industrial and hospital refuse with no preliminary treatment (JICA, 1997;Tazi, 2001).…”