%0 Journal Article
%A LIU Ye
%A WANG Cun-shi
%A WU Shao-kai
%A SHEN Wen-tao
%A XU Jian-bo
%A BAI Wang-jun
%A ZHU Jian-zhong
%T Effects of Electric Field on Migration and Removal of Cd<sup>2+</sup> in Sediment of High Moisture Content
%D 2023
%R 10.11988/ckyyb.20210960
%J Journal of Yangtze River Scientific Research Institute
%P 60-66
%V 40
%N 2
%X The aim of this research is to verify the effectiveness of electrokinetic remediation technology in removing heavy metal pollution. The adsorption characteristics and the diffusion and migration of Cd<sup>2+</sup> in sediments under electric field were studied by using the low-pressure DC sediment disturbance simulation device. Results manifested that the saturated adsorption of Cd<sup>2+</sup> by silt under electric field increased from 0.438 mg/g to 0.498 mg/g. XRD analysis of sediment confirmed that the change of mineral crystal led to the decrease of Zeta potential and the enhancement of adsorption capacity. The migration of Cd<sup>2+</sup> to solid phase and electrode network increased at 30 V voltage, and the Cd<sup>2+</sup> atom content in cathode electrode network increased from 0.05% to 0.19% mainly due to the electrocoagulation of Cd<sup>2+</sup> in liquid phase. In addition, the adsorption and electrochemical reaction of Cd<sup>2+</sup> can be accelerated under the condition of disturbance.
%U http://ckyyb.crsri.cn/EN/10.11988/ckyyb.20210960