Chromium removal from drinking water by redox-assisted coagulation: Chemical versus electrocoagulation.

•A semi-pilot comprising either of EC or CC was used to remove CrT from water.•EC and CC using Fe as coagulating agent are effective in removing CrT from water.•The best performances were established using a ratio of Fe/CrT > 3.•CrT concentration (C0 = 19.0 mg L−1) could be optimally diminished by up to 99%.•Residual CrT concentrations were below the limiting value recommended (0.05 mg L−1).