合硫酸盐驱动的脱和anammox去除实际废水中的
Suqin Wang1, Ying Yuan1, Feng Liu2
1School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, PR China.
Bioresource technology
|November 19, 2024
概括
一种新的硫酸盐驱动的脱和anammox (TDDA) 工艺有效地从废水中去除. 这种合系统通过优化微生物群落和基因表达来提高anammox活动,实现了高的去除效率.
科学领域:
- 环境科学 环境科学
- 微生物学 微生物学
- 环境工程 环境工程
背景情况:
- 废水中的污染给环境带来了重大挑战.
- 传统的除方法可能耗费大量能源,并产生不必要的副产品.
- 开发高效和可持续的生物除过程至关重要.
研究的目的:
- 建立和优化合硫酸盐驱动的脱和anammox (TDDA) 过程,以从废水中去除.
- 在TDDA系统中调查微生物社区结构和功能基因丰度.
- 阐明在TDDA过程中有效去除的机制.
主要方法:
- 在使用合成和真实废水的上游无氧污泥毯 (UASB) 反应堆中优化TDDA过程.
- 分析物种 (酸盐,酸盐,) 的去除效率.
- 16S rRNA基因测序和定量PCR (qPCR) 用于评估微生物群落和功能基因丰度 (例如napA,nirS,hzs,soxXA,soxYZ).
主要成果:
- 在TDDA过程中实现了对酸盐,酸盐和的协同去除.
- 在1.39kgN/m3·d的负载下,达到97.8%的最大总去除效率.
- 亚纳莫克斯细菌 (Candidatus Brocadia) 是关键的参与者,得到了硫氧化细菌 (Thiobacillus,Rhodanobacter) 的支持.
- 优化条件导致关键功能基因和微生物物种的丰度增加.
结论:
- 结合的TDDA工艺是从废水中去除生物的高效方法.
- 微生物交叉养和自我适应对于TDDA系统的成功至关重要.
- 该研究强调了工程微生物联盟在先进废水处理方面的潜力.
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