使用电凝和电氧化方法处理和优化高强度的蛋洗废水废水
Pankaj Bhatt1, Bernard A Engel1, Karthik B Shivaram1
1Department of Agricultural & Biological Engineering, Purdue University, West Lafayette, IN, USA.
Chemosphere
|November 15, 2023
概括
电凝和电氧化有效处理蛋洗废水,去除90%以上的污染物,如可溶性化学氧气需求和氨. 这些方法为管理富含营养的蛋洗废水提供了有效的解决方案.
科学领域:
- 环境科学 环境科学
- 水处理工程水处理工程
- 电化学 电化学 电化学
背景情况:
- 洗卵的废水富含营养和有机物质,如果不处理,会给环境带来风险.
- 废水中存在的洗剂和消毒剂可能会加剧污染.
- 有效的处理对于防止环境污染和对水生生态系统的潜在损害至关重要.
研究的目的:
- 评估电凝 (EC) 和电氧化 (EO) 处理蛋洗废水的效率.
- 通过响应表面方法来优化操作参数.
- 评估关键污染物的去除,包括可溶化学氧需求 (sCOD),氨 (NH3-N),酸盐,酸盐,总溶解 (TDN) 和酸盐.
主要方法:
- 使用电凝 (EC) 接着电氧化 (EO) 过程.
- 采用响应表面的方法来优化参数.
- 研究了 (Al) 和铁 (Fe) 电极的使用,并与添加的钻石电极相结合,用于EO.
主要成果:
- 获得了高的去除效率:sCOD (90%),NH3-N (91%),酸盐 (97%),酸盐 (89.3%),TDN (91%) 和酸盐 (90%).
- 结合EC+EO的最佳条件是pH值6.0,电流密度20 mA cm-2和60分钟的电解时间.
- 污染物半衰期显著减少,EC-Al后的EO显示sCOD,酸盐,酸盐和TDN的快速降解.
结论:
- 结合EC和EO工艺在处理蛋洗废水方面非常有效.
- 用添加钻石的Al和Fe电极在去除污染物方面非常有效.
- 该研究提供了一种可行的方法来管理富含营养的废水,减少对环境的影响.
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