화학공학소재연구정보센터
Journal of Applied Electrochemistry, Vol.42, No.9, 809-817, 2012
Heavy metal removal by means of electrocoagulation using aluminum electrodes for drinking water purification
The present study has investigated the performance of electrocoagulation, to produce drinking water, using aluminum electrodes to remove nickel (Ni) and chromium (Cr) from two different water well samples from the north of Italy. Different experimental parameters, such as stirring and distance between the electrodes and current density, have been examined for both water samples. The series of experiments carried out on these two water samples has shown that the removal process of Ni is faster than that of Cr. In the case of water poisoned by Ni, a final concentration of 5 ppb was achieved starting from 41 ppb, while the Cr case showed a final concentration of 10 ppb compared to an initial 20 ppb. The electrocoagulation treatment presented in this study has shown very promising results and a high potential to remove very low amounts of heavy metals from water for drinking water production purposes.