在微生物电解细胞试点工厂使用Ni-泡阴极从工业废水中增强生物电化学气生产
Oscar Guerrero-Sodric1, Juan Antonio Baeza1, Albert Guisasola1
1GENOCOV, Department of Chemical, Biological and Environmental Engineering, School of Engineering, Universitat Autònoma de Barcelona, Bellaterra 08193, Spain.
Water research
|April 24, 2024
概括
微生物电解电池 (MEC) 中的-泡阴极显著促进了从工业废水中试点规模的生物生产,实现了创纪录的产量. 这一进步为废水处理和能源发电提供了可持续的解决方案.
科学领域:
- 环境科学与工程环境科学与工程
- 生物技术是生物技术.
- 可持续能源 可持续能源
背景情况:
- 微生物电解细胞 (MEC) 对工业废水处理和生物生产具有前景.
- 高效的阴极对MEC至关重要,但试点规模的性能数据有限.
- 扩展MEC技术需要了解阴极材料对生产的影响.
研究的目的:
- 评估泡和不钢羊毛阴极用于150升MEC试点工厂的气生产.
- 评估MEC在处理基于糖的工业废水方面的表现.
- 确定节能气发电的最佳运行条件.
主要方法:
- 使用了一个150 L MEC试验装置,使用泡和不钢羊毛阴极.
- 连续处理了80多天的基于糖的工业废水.
- 监控气生产,COD去除,能源效率和微生物群落.
主要成果:
- 实现了连续的生产和高达40%的COD去除.
- 泡阴极产生了试点规模的创纪录的气产量 (19.07 L H2 m-2 d-1),比不钢羊毛增加了3.0倍.
- 确定了0.91.0V的最佳应用电位范围,用于能量平衡和生产.
结论:
- 在试点规模上,泡阴极显著提高了MEC气生产和能源效率.
- 多国经济共同体在处理废水的同时显示出作为净能源生产者的潜力.
- 阳极微生物群落,由Geobacter和Bacteroides主导,有效地降解复杂的有机物质.
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