在不确定的影响参数下,在市政废水处理中整合碳捕获和基于anammox的过程的环境影响和优化策略
Rui Zhou1, Ying Zhu1, Qian Li2
1Key Lab of Environmental Engineering, Shaanxi Province, Xi'an University of Architecture and Technology, No.13 Yanta Road, Xi'an 710055, PR China.
Bioresource technology
|September 14, 2025
概括
将无氧膜生物反应器 (AnMBR) 与anammox过程和无氧消化 (AD) 集成,可显著减少30-50%的碳足迹,并促进能量回收. 这种废水处理方法为市政系统提供了可持续的解决方案.
科学领域:
- 环境工程 环境工程
- 生物技术是生物技术.
- 废水处理技术 废水处理技术
背景情况:
- 传统的活性污泥工艺是能源密集型的,有助于碳排放.
- 无氧氨氧化 (anammox) 为可持续的废水处理提供了一个有希望的替代方案.
- 优化污泥处理方法对于最大限度地提高环境效益至关重要.
研究的目的:
- 评估Anammox与AnMBR或HRAS系统集成的环境影响.
- 为了比较无氧消化 (AD) 与这些配置中的污泥处理焚烧的有效性.
- 在能源消耗和碳足迹方面确定基于Anammox的废水处理的最佳条件.
主要方法:
- 利用蒙特卡洛模拟,进行1万次代,以进行可靠的环境影响评估.
- 模拟的集成系统将Anammox与AnMBR和HRAS结合起来.
- 评估污泥处理选项,包括无氧消化 (AD) 和焚烧.
主要成果:
- 与Anammox和AD相结合的AnMBR减少了30%-50%的碳足迹,并增加了146.8%-320%的能量回收.
- AnMBR场景显示了低排放和能源使用,特别是在高COD度 (>200 mg/L) 的情况下,由于生物气的能量回收.
- 发现HRAS方案适用于高度 (>40 mg/L) 和低COD (<150 mg/L) 的废水.
结论:
- 通过将AnMBR与Anammox和AD集成,可以大幅减少碳足迹,并为市政废水处理提供大量的能量回收.
- 对于高COD废水,AnMBR技术是有利的,而HRAS更适合用于高,低COD条件.
- 在市政废水处理中与anammox工艺一起实施碳捕获是实现碳和能源中立的可行策略.
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