摘要
EDTA-Cu(Ⅱ)因其长期稳定性和不可生物降解性,对水体环境和人类健康构成了威胁。本文使用钢渣(SS)作为过一硫酸盐(PMS)的活化剂,在溶液中降解并去除EDTA-Cu(Ⅱ)。经过60 min氧化降解后,超过99%的EDTA-Cu(Ⅱ)被去除,比纯PMS工艺高出91%。提高温度和降低pH有利于PMS对EDTA-Cu(Ⅱ)的降解。自由基淬灭实验证实,硫酸根自由基(SO4-·)和羟基自由基(·OH)共同促进了EDTA-Cu(Ⅱ)的降解。该项研究为废弃资源——钢渣在水体污染治理方向提供了研究基础。
EDTA-Cu(II)pose a threat to surface water and human health due to their long-term stability and non-biodegradability.In this study,SS was used as an activator for PMS,which degrades and removes EDTA-Cu(II)in solution.After 60 minutes,over 99%of EDTA-Cu(II)was removed,a 91%increase compared to pure PMS processes.Increasing the temperature and decreasing the pH favor the degradation of EDTA-Cu(II)by PMS.Radical scavenging experiments confirmed that SO4-·and·OH jointly promote the degradation of EDTA-Cu(II).This research provides a foundation for the reuse of SS resources and water pollution control.
作者
冯嘉颖
刘建国
周吉奎
于丽丽
Feng Jiaying;Liu Jianguo;Zhou Jikui;Yu Lili(Institute of Resources Utilization and Rare Earth Development,Guangdong Academy of Sciences,Guangzhou,China;State Key Laboratory of Separation and Comprehensive Utilization of Rare Metals,Guangzhou,China)
出处
《科学技术创新》
2025年第17期83-86,共4页
Scientific and Technological Innovation
基金
广州市基础与应用基础研究项目(202201011599)。
