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将Electro Fenton与吸附过程相结合,用于处理石油炼油厂的废水
Ali N Kassob1, Ali H Abbar2, Abdullah Y Ghjeer1
1Chemical Engineering Department, College of Engineering, University of Al-Qadisiyah, Al-Diwaniyah, Iraq.
概括
这项研究结合了电-芬顿 (EF) 和活性炭 (AC) 吸附来处理石油炼油厂废水,实现了高化学氧气需求 (COD) 的去除. 与单独使用EF相比,EF+AC过程显示出更高的效率和更低的能耗.
科学领域:
- 环境化学环境化学
- 水处理技术水处理技术
- 化学工程是化学工程的重要组成部分.
背景情况:
- 由于高化学氧气需求 (COD),石油炼油厂的废水给环境带来了重大挑战.
- 传统的治疗方法可能不足以完全消除COD,需要先进的氧化过程.
- 电-芬顿 (EF) 工艺和活性炭 (AC) 吸附是废水整治的有希望的技术.
研究的目的:
- 研究Fenton电气和活性炭吸附 (EF+AC) 过程的组合,以消除石油炼油厂废水中的COD.
- 使用响应表面方法 (RSM) 优化EF过程参数,采用盒式设计 (BBD).
- 使用中央复合设计 (CCD) 来优化EF+AC过程参数.
主要方法:
- 电-芬顿 (EF) 工艺使用RSM-BBD优化了FeSO4度,电流密度和电解时间.
- 结合EF+AC过程被优化为活性炭 (AC) 包装水平和时间在恒定的EF参数使用RSM-CCD.
- 差异分析 (ANOVA) 用于确定过程参数的意义.
主要成果:
- 在最佳条件下,EF工艺实现了99.06%的COD去除:85.12分钟的电解,25mA/cm2的电流密度和1.335mM FeSO4.4.
- EF+AC工艺实现了98.77%的COD去除,92%的AC包装和85分钟的工艺时间,仅消耗0.91千瓦时/千克COD.
- 与单独使用EF工艺相比,EF+AC工艺的能耗显著降低,硫酸铁剂量减少.
结论:
- 结合的EF+AC工艺在去除石油炼油厂废水中的COD方面非常有效.
- EF+AC流程为独立的EF流程提供了一个更节能,更节约资源的替代方案.
- 这种综合方法为工业废水处理提供了可行和可持续的解决方案.
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