阳极材料,应用电流和反应器配置在电氧化过程中对阿诺洛尔毒性的影响
M T Montañés1, M García-Gabaldón1, J J Giner-Sanz1
1IEC Group, ISIRYM, Universitat Politècnica de València, Camí de Vera s/n, 46022, València, P.O. Box 22012, E-46071, Spain.
Heliyon
|March 7, 2024
概括
研究了使用电化学高级氧化过程 (EAOPs) 进行阿诺醇 (ATL) 清除. 虽然EAOPs可以降解ATL,但硫酸盐的存在会增加由于硫酸盐的形成而引起的生态毒性,特别是在特定的反应堆配置中.
科学领域:
- 环境化学环境化学
- 生态毒理学 生态毒理学
- 电化学 电化学 电化学
背景情况:
- 阿提诺洛 (ATL) 是一种β抑制剂,在水生环境中具有持久性,并带来生态风险.
- 电化学高级氧化工艺 (EAOPs) 显示出由于其低生物降解率而有可能去除ATL.
研究的目的:
- 分析ATL在存在硫酸 (Na2SO4) 的生态毒性,硫酸是EAOP中常见的电解质.
- 评估EAOPs在处理ATL污染溶液中的有效性,并评估由此产生的生态毒性.
主要方法:
- 使用*Lactuca sativa*种子 (根延长抑制) 和*Vibrio fischeri*细菌进行生态毒性测试.
- 使用不同阳极材料,电流和反应器配置的EAOP处理ATL和Na2SO4溶液.
- 分析Na2SO4度对ATL生态毒性的影响.
主要成果:
- 仅ATL就显示了1377毫克L-1的EC50 ((5天) 对*Lactuca sativa*.
- 增加Na2SO4度增加了ATL生态毒性,EC50达到0毫克L-1在4克L-1Na2SO4.4.
- 由于硫酸盐的形成,EAOP处理增加了溶液生态毒性,但最终的样本对*Vibrio fischeri*无毒.
- 在最佳的处理条件下 (两反应堆,BDD阳极,0.6A) 实现了低毒性 (3TU) 与完全矿化.
结论:
- 存在的Na2SO4显著影响ATL生态毒性,EAOPs可以产生有毒的副产品,如硫酸盐.
- 精心选择EAOP参数 (反应堆设计,阳极,电流) 对于有效的ATL处理至关重要,同时最大限度地减少二次污染.
- 该研究强调了在电解质的存在下用EAOP处理制药污染物的复杂性.
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