南华大学学报（自然科学版）2023，Vol.37Issue(5)：1-8,27,9.DOI:10.19431/j.cnki.1673-0062.2023.05.001
电极布置对电化学矿化固定废水中低浓度铀的影响研究
Effect of Electrode Layout on the Immobilization of Low-Enriched Uranium in Wastewater by Electrochemical Mineralization
摘要
Abstract
Immobilization of low-enriched uranium from wastewater into the artificial mineral lattice to limit uranium migration and transformation is an effective strategy for ad-dressing uranium radioactive contamination.Rapid,non-polluting,low-energy immobiliza-tion of low-enriched uranium from wastewater into the magnetite lattice for stabilization of mineralization can be achieved through electrochemical methods.This study proposes to improve the crystallization rate of magnetite and uranium removal efficiency by optimizing the electrode layout,with the emphasis on the effects of electrode layout,distance,wastewater flow direction and flow rate on magnetite crystallization and uranium removal,and the physico-chemical characteristics of uranium-doped magnetite were evaluated.The results showed that the electrode layout changed the crystallization rate of the magnetite with respect to the current density;the arrangement of the alternating cathode and anode electrodes was most beneficial for magnetite crystallization;the forward flow of wastewater promotes ionic migration and increases the uranium removal rate,which can be as high as 96.1%at an initial uranium mass concentration of 10 mg/L.关键词
含铀废水/电化学/矿化/磁铁矿/电极布置Key words
uranium-containing wastewater/electrochemistry/mineralization/magnetite/electrode layout分类
资源环境引用本文复制引用
曹澜澜,艾奇伟,李密..电极布置对电化学矿化固定废水中低浓度铀的影响研究[J].南华大学学报（自然科学版）,2023,37(5):1-8,27,9.基金项目
国家自然科学基金资助项目(51874180) （51874180）
湖南省科技计划项目(2019RS2042) （2019RS2042）
