使用太阳能芬顿技术优化,动力学和制药污染物降解的途径
Ravi Anjali1, Subramainam Shanthakumar2
1Department of Environmental and Water Resources Engineering, School of Civil Engineering, Vellore Institute of Technology (VIT), Vellore, 632014, India.
Environmental monitoring and assessment
|June 28, 2024
概括
太阳能芬顿工艺有效降解混合制药污染物,在水溶液中达到99%以上的去除率. 这种先进的氧化过程对处理真正的废水具有前景,证明了阿莫西西林,乙氨基和西普罗夫洛克萨的高消除率.
科学领域:
- 环境化学环境化学
- 水处理技术水处理技术
- 先进的氧化过程 先进的氧化过程
背景情况:
- 制药污染物对水生生态系统和人类健康构成重大威胁.
- 先进的氧化过程 (AOP) 对于降解持久有机污染物至关重要.
- 太阳能芬顿是一个广泛认可的AOP用于制药污染物补救.
研究的目的:
- 使用太阳能芬顿工艺评估混合制药污染物的同时降解 (阿莫西西林,乙氨基,西普罗夫洛克萨).
- 为了确定最佳的操作条件,以有效地去除污染物.
- 在真实的废水矩阵上评估太阳能芬顿工艺的有效性.
主要方法:
- 在水溶液中同时降解阿莫西西林,乙氨基和西普罗夫洛克萨.
- 参数的优化:pH,铁 (Fe2+) 剂量,过氧化 (H2O2) 剂量,初始污染物度和反应时间.
- 使用伪第一阶模型的动力分析.
- 使用LC-ESI-MS和ECOSAR进行降解副产品的分析.
主要成果:
- 确定了最佳条件:pH 3,0.04 mM Fe2+,4 mM H2O2,5 mg/L混合污染物,400 W/m2的太阳辐射,10分钟的反应时间.
- 在水溶液中混合污染物的降解效率达到>99%.
- 观察到高达63%的矿化,并分析了基的清除效应.
- 在的城市废水 (65-89%) 和医院废水 (76-92%) 中表现出高的消除率.
结论:
- 太阳能芬顿工艺对于同时从水溶液中去除混合制药污染物非常有效.
- 该工艺显示出在处理实际废水,包括市政和医院废水方面的应用潜力很大.
- 对转化产品和矿化进行进一步的研究是有必要的,以便全面了解该过程对环境的影响.
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