在线悬浮电解去污电化学性能和去污效果  

Electrochemical Performance and Decontamination Effect of Online Suspension Electrolysis Decontamination

作　　者：张怡[1] 郑佐西[1] 朱欣研[1] 马梅花[1] ZHANG Yi;ZHENG Zuo xi;ZHU Xin yan;MA Mei hua(China Institute of Atomic Energy,P.O.Box 275（93）,Beijing 102413,China)

机构地区：[1]中国原子能科学研究院放射化学研究所,北京102413

出　　处：《核化学与放射化学》2018年第4期243-249,共7页Journal of Nuclear and Radiochemistry

摘　　要：在悬浮电解去污前期实验研究中,建立了24L实验室在线悬浮电解去污装置,并且确定了悬浮电解去污配方。利用前期的实验结果,对碳钢、不锈钢模拟样品进行电化学去污实验,确定了最优的悬浮电解液配方和去污工艺。同时通过电化学工作站对其去污过程中的电化学性能进行研究,确定了电化学性能和去污效果的关系。在优化的电解液配方即0.6mol/L H2SO4、0.8mol/L Na2SO4、100g/L石墨颗粒、60g/L SiC颗粒,循环流速26mL/s、电解电压8V、传输距离5m等工艺参数和电流密度250A/cm2条件下,对碳钢和不锈钢模拟样片进行1h去污,去污因子为257和191。Based on the preliminary experiment, 24 L laboratory online suspension electroly sis decontamination device was established, and the electrolytic decontamination formulation was determined. The experiments were carried with the simulated carbon steel and stainless steel samples, to determine the optimized suspension electrolysis decontamination formula tion and process parameters. At the same time, through the electrochemical workstation, the electrochemical performance of online suspension electrolysis decontamination device, the relationship of the electrochemical properties and decontamination factors were studied. Under the optimal parameters and conditions, including the 0.6 mol/L H2SO4, 0.8 mol/L NaeSO4, 100 g/L suspension particle, 60 g/L abrasive particle, the 26 mL/s circulating flow, the 8 V electric voltage and the 5 m transmission distance, for the simulated carbon steel and stainless steel samples, after 1 h decontamination, their decontamination factor can reach 257 and 191.

关 键 词：在线悬浮电解 电化学性能 去污因子 

分 类 号：TL944[核科学技术—辐射防护及环境保护]