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含有尿素甲和胺甲的废水进行电化学处理

Tamt Ul Nisa¹, Waheed Ali Khokhar¹, Uzma Imran¹

¹US - Pakistan Center for Advanced Studies in Water, Mehran University of Engineering and Technology (USPCAS-W), Jamshoro, 76062, Sindh, Pakistan.

|July 21, 2023

概括

电化学处理有效地从工业废水中去除尿素甲和胺甲. 这项研究优化了污染物减少的条件,为受污染的水提供了新的解决方案.

科学领域:

环境工程环境工程
水处理技术水处理技术
电化学电化学电化学

背景情况:

中密纤维板 (MDF) 工厂的废水含有尿素甲 (UF) 和胺甲 (MF).
这种未经处理的废水排放对人类健康和水生生态系统构成风险.
对于这些特定的污染物,现有的处理方法是不够的或未被探索的.

研究的目的:

调查电化学 (EC) 处理UF和MF污染废水的有效性.
为最大限度地去除污染物优化EC过程参数.
评估开发的处理过程的电极和能源消耗.

主要方法:

使用电极进行批量电化学处理.
反应时间,电流密度,电极间距离和混合速度的系统变化.
污染物去除的分析包括化学氧气需求 (COD),总有机碳 (TOC),甲 (FA) 和总 (TN).

主要成果:

在优化条件下 (150分钟,43.28mA/cm2,1.5厘米,80rpm) 实现了高清除率:81.1%的TOC,61.5%的COD,76.7%的TN和55.2%的FA.
亚酸盐 (NO3-N) 的去除达到了28.3%.
电极和能量消耗分别为2.367g/L和0.18kWh/L.

结论:

电化学处理是从工业废水中去除UF和MF污染物的可行方法.
伪第一阶动力模型准确地描述了TOC和FA的去除趋势.
该研究为EC在废水处理中的实际应用提供了优化的参数和消耗数据.

关键词:

合金合金合金电化学电化学电化学甲甲是一种形式的甲.动力学研究动力学研究废水是废水,废水就是废水.

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Factors Affecting Solubility

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Compared with pure water, the solubility of an ionic compound is less in aqueous solutions containing a common ion (one also produced by dissolution of the ionic compound). This is an example of a phenomenon known as the common ion effect, which is a consequence of the law of mass action that may be explained using Le Chȃtelier’s principle. Consider the dissolution of silver iodide: