分区颗粒型污泥合与膜气化生物膜反应器,以有效的自营去除
Ning Mei1, Fangxu Jia1, Hui Wang2
1Beijing Key Laboratory of Aqueous Typical Pollutants Control and Water Quality Safeguard, School of Environment, Beijing Jiaotong University, Beijing 100044, China.
Bioresource technology
|October 5, 2024
概括
一种新的分离颗粒污泥与膜气化生物膜反应器 (G-MABR) 相结合,有效地消除了化学氧气需求和. 这种配置抑制了酸盐氧化细菌 (NOB),并增强了关键微生物群体之间的协同作用,以有效处理废水.
科学领域:
- 环境科学 环境科学
- 微生物学 微生物学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 膜气化生物膜反应器 (MABR) 中的部分化-安纳摩克斯过程面临诸多挑战,包括化氧化细菌 (NOB) 的增殖,高废水酸盐和脱化和安纳摩克斯细菌之间的协同作用较差.
- 这些局限性阻碍了废水处理中的生物除效率和稳定性.
研究的目的:
- 开发和评估一种新的分区颗粒型污泥合与MABR (G-MABR) 系统.
- 为了克服传统MABR系统在部分化-anammox过程中的局限性.
- 为了提高和化学氧需求 (COD) 的去除效率和微生物协同作用.
主要方法:
- 用MABR (G-MABR) 结合的分离颗粒污泥的建造.
- 操作G-MABR系统,同时去除COD和.
- 分析不同反应堆区内的微生物社区相互作用和基质竞争.
- 监测关键绩效指标,包括COD和去除效率.
主要成果:
- 该G-MABR系统实现了高COD去除效率的88.8±1.8%到92.6±1.2%,和去除效率的88.8±1.5%到93.6±0.7%.
- 污染物去除主要局限于颗粒性污泥区域,而去除主要发生在MABR区域.
- 由于基质竞争,在MABR区观察到NOB的显著抑制,而降低的C/N比率促进了自的自移除.
- 通过部分化和脱化实现了对颗粒性污泥和膜生物膜anammox细菌的有效化物供应.
结论:
- 分区式G-MABR配置是有效的废水处理的有希望的方法.
- 这种新的设计有效地解决了与MABR系统中NOB抑制和微生物协同作用相关的挑战.
- 在COD和除方面,G-MABR系统表现出卓越的性能,为废水管理提供了可持续的解决方案.
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