%0 Journal Article
%A TANG Ding-ding
%A QIAO Wei
%A SHI De-liang
%A LI Ya-long
%A YAO Fu-qi
%T Technical Issues in Treating Polychlorinated Biphenyls by Molten Salt Electrochemistry
%D 2018
%R 10.11988/ckyyb.20170451
%J Journal of Yangtze River Scientific Research Institute
%P 30-35
%V 35
%N 7
%X In this study, alkali molten salt electrochemical method was applied to degrade polychlorinated biphenyls (PCBs). Oxidizers and reductants can be generated in situ by this method by electrolyzing and promoting decomposition reaction due to high temperature and alkali molten salt. The optimum technical conditions for PCBs treatment were explored by examining the influences of technical parameters including PCBs concentration, molten salt system, reaction temperature, reaction time, electrolysis voltage on   treatment efficiency. Research result indicated that the PCBs removal efficiency was improved with the climbing  of reaction temperature and electrolysis voltage, but inhibited with the increase  of   PCBs concentration and reaction time. Moreover, the composition of molten salt system also observably affected the PCBs removal efficiency. In optimized conditions, the removal rates of PCBs reached 99% after pre-electrolysis for one hour. This study offers a novel approach for the treatment of chlorination aromatic hydrocarbons such as PCBs.
%U http://ckyyb.crsri.cn/EN/10.11988/ckyyb.20170451