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Updated: Jun 12, 2025

Electrochemically and Bioelectrochemically Induced Ammonium Recovery
Published on: January 22, 2015
通过防止徒劳的碳氧化和增强anammox来提高低C/N废水的提升除能力
Song Chen1,2,3, Qing-Pei Zhang3, Jin-Song Zhang3
1Key Laboratory of Northwest Water Resource, Environment, and Ecology, MOE, School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China.
本研究介绍了一种无氧/氧/无氧系统,可以有效地在内部储存碳,防止浪费并增强低C/N废水中的生物去除. 这种创新方法实现了高的去除率,同时最大限度地减少了化学氧气需求损失.
科学领域:
- 环境微生物学 环境微生物学
- 废水处理工程 废水处理工程
背景情况:
- 有效的生物去除对于废水处理至关重要,但传统的有氧过程往往导致碳源浪费,导致碳缺乏.
- 由于有限的可用碳来源,低C/N (碳-) 比率的废水对有效的除具有重大挑战.
研究的目的:
- 研究一种无氧/氧/无氧 (A/O/A) 系统的有效性,该系统具有污泥双循环,用于提高低C/N废水中的去除.
- 评估系统提高碳利用效率和尽量减少碳无用的氧化的能力.
主要方法:
- 实施A/O/A系统,将细胞内碳储存纳入无氧单元中的糖原积聚生物 (DGAO) 的脱化.
- 通过有氧化,然后通过无氧脱和Anammox过程分离碳和代谢.
- 微生物社区分析以确定关键的功能细菌,包括DGAO和Anammox物种.
主要成果:
- 达到91.02±7.01%的化学氧需求 (COD) 转化为细胞内碳,显著减少有氧单位中徒劳的氧化.
- 已证明的高去除效率:总 (TN) 的81.3±3.3%,氨的98.5±0.9%.
- 在经过处理的低C/N废水中保持低废水COD度 (17.2±9.1 mg/L) (影响C/N=4.18).
结论:
- 具有污泥双循环的A/O/A系统通过促进细胞内碳储存,有效地解决了低C/N废水中的碳缺乏问题.
- 这种方法通过防止徒劳的COD氧化和利用DGAO和Anammox细菌 (例如, *Candidatus Brocadia*) 的联合活性来增强去除.
- 该研究为废水处理厂 (WWTP) 提供了一种可持续和节能的解决方案,以满足严格的排放标准.
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