第 49 卷第 5 期 Vol. 49 No. 5 2019 年 10 月 Oct 2019

所属栏目：安全与环保 催化超临界水氧化技术处理核电站废阴离子交换树脂的研究

兰树仁，柴 涛*，刘雯雯，张新宇，陈瑞华 （中北大学 环境与安全工程学院，山西 太原 030051）

摘　要：为高效处理核电站废阴离子交换树脂，采用催化超临界水氧化技术，探究不同的均相和非均相催化剂对其NH3-N和CODCr的影响，并在此基础上，研究非均相催化剂的稳定性和复合催化剂的最佳配比。结果表明：均相催化效果顺序为CuSO4>Cu（NO3）3>MnSO4>ZnSO4>Mn（NO3）2>ZnCl2>Zn（NO3）2>Fe（NO3）3。CuSO4使阴离子树脂CODCr的去除率达99.93%，出水NH3-N达21.93 mg·L-1。CeO2、CuO、TiO2反应后没有新物质生成，MnO2反应后有Mn2O3生成。非均相催化剂中MnO2-CeO2催化效果最佳。优化配比为n（MnO2）∶n（CeO2）=2∶3，使阴离子树脂CODCr的去除率达99.91%。

关键词：超临水氧化技术；阴离子交换树脂；催化剂

中图分类号：X703.1　　文献标识码：A　　文章编号：1009-9212（2019）05-0054-05

Treatment of Waste Anion Exchange Resin of Nuclear Power Plant by Catalytic Supercritical Water Oxidation Technology

LAN Shu-ren, CHAI Tao*, LIU Wen-wen, ZHANG Xin-yu, CHEN Rui-hua (College of Environmental and Safety Engineering, North University of China, Taiyuan 030051, China)

Abstract：Aiming at the treatment of waste anion exchange resin in nuclear power plants, the effects of different homogeneous and heterogeneous catalysts on NH3-N and CODCr were investigated by catalytic supercritical water oxidation technology. Based on this, the stability composition of heterogeneous catalysts were studied. The results showed that the order of homogeneous catalytic efficiency was CuSO4>Cu(NO3)3>MnSO4>ZnSO4>Mn(NO3)2>ZnCl2>Zn(NO3)2>Fe(NO3)3. CuSO4 removed the anion resin CODCr by 99.93%; and the effluent NH3-N reached 21.93 mg·L-1. No new substances were formed after the reaction of CeO2, CuO and TiO2, and Mn2O3 was formed after the reaction of MnO2. The best catalytic effect of MnO2-CeO2 as heterogeneous catalyst was achieved. The optimal ratio was of 2∶3(n(MnO2)∶n(CeO2)）, which had a removal rate of 99.91% for anionic resin CODCr.

Key words：super water oxidation technology; anion exchange resin; catalyst

基金项目：山西省重点研发计划项目（201603D321019）。

作者简介：兰树仁（1994-），男，山西吕梁人，硕士研究生，研究方向：超临界水氧化技术（E-mail：1512679602@qq.com）。

联 系 人：柴涛，教授，研究方向：超临界水氧化技术、微生物技术等（E-mail：lyc2ct@sina.com）。

收稿日期：2019-10-10