电凝/浮动过程用于从水环境中去除铜
Giti Kashi1,2
1Department of Environmental Health Engineering, Faculty of Health, Tehran Medical Sciences Branch, Islamic Azad University, Khaghani St., Shariati Ave, Tehran, Iran. g.kashi@yahoo.com.
Scientific reports
|August 16, 2023
概括
电凝/浮动 (ECF) 有效地从饮用水中去除铜. 在最佳条件下实现了100%的铜减少,证明了ECF.
科学领域:
- 环境化学环境化学
- 水处理技术水处理技术
- 分析化学 分析化学
背景情况:
- 饮用水中的铜污染带来了环境和美学问题.
- 人类和自然来源导致水中的铜含量升高.
- 有效的铜去除方法对于确保水质至关重要.
研究的目的:
- 通过电凝/浮动 (ECF) 来研究从城市饮用水中去除铜.
- 在各种操作参数下评估使用电极的ECF的效率.
- 确定最佳条件去除铜,并分析去除动力学和成本.
主要方法:
- 批量反应堆电凝/浮动 (ECF) 使用电极.
- 电流密度,初始铜度,pH值和反应时间的系统变化.
- 使用标准程序进行铜度分析 (3500-Cu B在4571nm).
- 应用Taguchi方法来识别显著变量和动力建模.
主要成果:
- ECF实现了95-100%的铜去除效率.
- 在初始度为100mg/L,pH值为7.5,反应时间为30分钟,电流密度为2.4mA/cm2时,达到100%的铜减少.
- 通过塔古奇分析,反应时间被确定为影响铜去除效率的最重要的变量.
- 铜去除遵循二次动力学 (R2 > 0.92) 并涉及氧化还原和吸附机制.
结论:
- 电凝/浮动 (ECF) 是一种高效的方法,可以从水环境中去除铜.
- 该工艺具有成本效益,运营成本在8857到9636里亚尔/公斤去除的之间.
- 优化的ECF参数确保完全去除铜,使其成为水处理的可行解决方案.
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