硫化对anammox和依赖酸盐/酸盐的厌氧甲氧化合技术的影响
Xueming Chen1, Siying Chen1, Xinyan Chen1
1College of Environment and Safety Engineering, Fuzhou University, Fuzhou 350116, PR China.
Water research
|May 10, 2024
概括
生物气中的硫化 (H2S) 不会影响膜生物膜反应器中的去除,但会损害颗粒生物反应器. 避免在颗粒式生物反应器中使用H2S,以实现可持续的去除.
科学领域:
- 环境生物技术环境生物技术
- 污水处理 污水处理 污水处理
- 生物地质化学循环 生物地质化学循环
背景情况:
- 亚纳莫克斯和依赖酸盐/酸盐的无氧甲氧化 (n-DAMO) 提供从废水中可持续的去除.
- 这些过程可以在膜生物膜反应器 (MBfR) 和颗粒生物反应器中实现.
- 无氧消化 (AD) 生物气中的硫化 (H2S) 对这些系统的影响尚不清楚.
研究的目的:
- 研究H2S对MBfR和颗粒生物反应器中anammox/n-DAMO过程的影响.
- 开发和验证模拟碳,和硫生物工艺的模型.
- 评估使用含有H2S的AD生物气去除的可行性.
主要方法:
- 构建一个整合C/N/S循环的生物工艺模型.
- 使用实验数据进行模型校准和验证.
- 在各种运行条件下对MBfR和颗粒生物反应器的H2S影响的模拟.
主要成果:
- 在研究的条件下,生物气中的H2S并没有显著影响MBfR中的总去除.
- 在高NH4+-N/NO2-N比率 (>1.0) 的情况下,H2S损害了颗粒生物反应器的性能.
- 在低NH4+-N/NO2--N比率 (<0.7) 的颗粒生物反应器中,H2S增加了去除的能源需求.
结论:
- 在不影响性能的情况下,MBfR可以利用含有H2S的AD生物气去除.
- 颗粒生物反应器对H2S敏感,需要去除它以有效地去除,特别是在不同的影响比率下.
- 在anammox/n-DAMO系统中的颗粒生物反应器应用中,H2S缓解至关重要.
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