Balarak,D , , Mahdavi,Y , , Gharibi,F , and Sadeghi,S . "Removal of hexavalent chromium from aqueous solution using canola biomass: Isotherms and kinetics studies", Journal of Advances in Environmental Health Research, 2, 4, 2014, 234-241. doi: 10.22102/jaehr.2014.40174