IntroductionThe contamination of water bodies by toxic heavy metals isa world-wide environmental problem (Tan and Xiao, 2009)due to their non-degradability (Kumar, 2013). Industrial activ-ities have resulted in the accumulation of heavy metals in theenvironment. According to World Health Organization (WHO),cadmium (Cd) is among the metals of immediate concern dueto the fact that Cd as well as other toxic metals can easilyenter into the food chain and impose severe human healthhazards. The drinking water guideline value recommendedfor Cd by WHO and American Water Works Association is∗