石油炼油厂废水处理的电化学过程,使用微生物电解细胞产生电力和气
Anwar Ahmad1, Alaya Said Senaidi1, Sajjala Sreedhar Reddy1
1Civil and Environmental Engineering Department, College of Engineering and Architecture, University of Nizwa, PO 33, Nizwa City, 616 Oman.
Journal of environmental health science & engineering
|October 23, 2023
概括
微生物电解电池 (MEC) 有效地处理石油炼油厂废水 (PRW),产生大量的生物电和. 这项技术展示了高化学氧需求 (COD) 清除效率,展示了其可持续废水管理的潜力.
科学领域:
- 环境科学 环境科学
- 电化学 电化学 电化学
- 微生物学 微生物学
背景情况:
- 由于其复杂的有机成分,石油炼油厂废水 (PRW) 带来了重大的环境挑战.
- 传统的治疗方法经常与PRW的固性质作斗争,需要先进的解决方案.
- 微生物电解电池 (MEC) 为废水处理和资源回收提供了一个有前途的生物电化学方法.
研究的目的:
- 评估微生物电解细胞 (MEC) 在处理石油炼油厂废水 (PRW) 的性能.
- 评估MEC的发电和生物电化学气生产能力.
- 确定MEC在消除PRW的化学氧需求 (COD) 的效率.
主要方法:
- 微生物电解电池 (MEC) 的运行,供应石油炼油厂废水 (PRW).
- 监测生物电力发电,功率密度和电流密度.
- 评估微生物生物膜的生长及其在污染物氧化中的作用.
- 测量化学氧气需求 (COD) 的去除效率.
- 量化气生产的量化.
主要成果:
- 在17000 mg/L的COD负载下,MEC实现了21.4 mA的最大生物电力和1200123.90 W/m2的功率密度.
- 观察到显著的微生物生物膜生长,催化了PRW中复杂有机化合物的氧化.
- 由于微生物膜尺寸增加和电子生成,记录了5890mA/m2的增强电流密度.
- 该MEC显示了高的COD去除效率,达到89.9%.
- 在130天后的COD为17500mg/L时,MEC产生了24.5mA的生物电和19.2L的.
结论:
- 在处理石油炼油厂废水方面,MEC技术非常有效.
- 微生物生物膜的开发对于提高MECs的电化学性能至关重要.
- MEC技术提供了一种可持续和高效的方法,可以同时处理废水和从PRW中回收能量.
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