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生物电化学系统去除:基本原理,当前状态,趋势和挑战
Kamonwan Khanthong1, Heewon Jang1, Rahul Kadam1
1Department of Advanced Energy Engineering, Chosun University, Gwangju, 61457, Republic of Korea.
Chemosphere
|August 11, 2023
概括
生物电化学除 (BENR) 为传统废水处理提供了一种有效的替代方案. 这项技术显示出有望恢复有价值的气,同时去除气,旨在实现碳和能源中立.
科学领域:
- 环境科学 环境科学
- 环境工程 环境工程
- 电化学 电化学 电化学
背景情况:
- 生物除 (BNR) 对于处理富含的废水至关重要,但面临着空气化成本和温室气体排放等挑战.
- 传统的BNR过程需要外部碳来源,增加运营成本和环境影响.
研究的目的:
- 探索生物电化学除 (BENR) 作为传统BNR的可持续替代方案.
- 调查生物电化学-ANAMMOX (BE-ANAMMOX) 对有效的去除和回收的潜力.
- 确定优化 BENR 流程的关键挑战和未来方向.
主要方法:
- 审查生物电化学途径去除,包括化,脱化,ANAMMOX和有机碳氧化.
- 专注于BE-ANAMMOX,使用电极作为电子接受器,直接将转化为气和气.
- 对替代电子接受器的分析以及与电子供体要求和微生物效率相关的挑战.
主要成果:
- BE-ANAMMOX证明了同时去除和生产高价值的潜力.
- 电极可以作为有效的电子接受器,取代传统的通风方法.
- 障碍包括在酸盐减少中需要电子捐赠者,低氨去除效率和微生物限制.
结论:
- BENR,特别是BE-ANAMMOX,为可持续的废水处理提供了一个有希望的多功能技术.
- 未来的研究应该专注于实现完全无氧氧化和最大限度地提高的选择性.
- 进一步研究生物电化学途径对于废水处理中的碳和能源中立性至关重要.
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