光催化合电-芬顿工艺处理烯胺废水:一项优化研究
Lei Xie1, Liya Wang2, Shuyi Zhu1
1Institute of Ecology & Health, HANGZHOU VOCATIONAL & TECHNICAL COLLEGE, Hangzhou, People's Republic of China.
Environmental technology
|October 28, 2024
概括
这项研究将光催化与电扇 (EF) 结合起来,用于处理烯胺废水,大大降低了能源消耗. 这种新方法有效地消除了化学氧需求 (COD) 和氨 (NH3-N).
科学领域:
- 环境化学环境化学
- 废水处理技术 废水处理技术
- 应用电化学 应用电化学
背景情况:
- 电动芬顿 (EF) 对于废水处理是有效的,但能源密集型.
- 将EF与太阳能或光催化剂相结合可能会降低电力需求.
- 烯胺 (AM) 废水带来了环境挑战,需要有效的降解方法.
研究的目的:
- 为了研究光催化和三维电-芬顿 (3D-EF) 对烯胺废水处理的联合作用.
- 优化操作参数,以改善污染物清除和减少能源消耗.
- 评估合系统在消除化学氧气需求 (COD),氨 (NH3-N) 和总有机碳 (TOC) 的效率.
主要方法:
- 开发了一种混合系统,将光催化与三维电-芬顿相结合.
- 使用响应表面方法 (RSM) 来优化关键操作参数.
- 优化的参数包括电流密度,铁粉剂量,板间距和光催化剂剂量.
主要成果:
- 与单个EF或光催化相比,合光催化-3D-EF系统显示能耗降低.
- 优化条件实现了高的去除率:COD的82.444%,NH3-N的92.810%.
- 即使在低度的催化剂中也观察到有机污染物的有效降解.
结论:
- 光催化与3D-EF的整合为AM废水处理提供了一个有希望的低能耗解决方案.
- 优化的混合系统可以有效地去除COD和NH3-N等关键污染物.
- 这种方法为工业废水整治提供了一种可持续且具有成本效益的方法.
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