NaCl添加剂对Na_3PO_4电解质溶液去污能力的影响

The Effect of NaCl Additive on the Decontamination Ability of Na_3PO_4 Electrolyte

以Na_3PO_4溶液为电解质,探讨了Na Cl添加剂及其浓度对受放射性污染的不锈钢薄板去污效果的影响。结果表明:(1)电解时间越长去污因子越高,且Na_3PO_4+Na Cl电解液的去污因子比Na_3PO_4电解液高;(2)Na_3PO_4+Na Cl电解液中的薄板失重率始终高于Na_3PO_4电解液中的薄板;(3)Na Cl添加剂浓度为200 g/L时去污因子最高,250 g/L时失重率最高。结果说明,一定浓度的Na Cl添加剂能提高Na_3PO_4电解液的去污效果。

Using Na3 PO4 solution as electrolyte, effect of NaCl additive and its concentration on the decontam- ination ability of an electrochemical process for radioactive contaminated stainless steel sheet was investigated. The results indicate that the decontaminate factor increases with the extension of time, and also with the addit- ion of NaCl. The weight loss rate of stainless steel sheets with NaCl additive is always higher. While NaCl con- centrations are 200 g/L and 250 g/L, the decontaminate factor and weight loss rate reach the max of 13.7 and 2.21% respectively. It shows that NaCl with a certain concentration can help improve the decontamination ability of Na3 PO4 electrolyte.