在盐应激下Fe(III) 辅助的阿纳莫克斯的防御机制:性能和微生物社区动态
Shuyan Yin1, Xinbai Jiang1, Yuming Wang1
1Key Laboratory of Environmental Remediation and Ecological Health, Ministry of Industry and Information Technology, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China.
Water research X
|September 6, 2023
概括
铁 (III) 的添加有助于anammox细菌在高盐度废水中壮成长. 这一策略通过促进关键物种和改善酶合成以改善能量代谢来增强去除.
科学领域:
- 环境微生物学 环境微生物学
- 废水处理技术 废水处理技术
背景情况:
- 安纳莫克斯工艺有效地去除富含的废水中的.
- 高盐度对Anammox细菌构成挑战,因为它们的敏感性很高.
研究的目的:
- 制定Fe(III) 添加策略,以提高Anammox适应高盐度环境的能力.
- 在盐水条件下阐明Fe (III) 辅助Anammox所涉及的防御机制.
主要方法:
- 在3.5%盐度下研究了Anammox的性能.
- 实施了连续的Fe (III) 添加,以评估其对Anammox细菌的影响.
- 分析了Anammox物种丰度和关键酶合成的变化.
主要成果:
- 在3.5%的盐度 (0.85kg/m3·d) 总去除率下,Anammox的性能显著下降.
- (Fe) 的添加促进了Anammox物种*Candidatus*Kuenenia的丰富,该物种超越了竞争中的*Candidatus*Brocadia.
- 在3.5%的盐度下, *Candidatus* Kuenenia的丰度达到了41.04%.
- 在高盐度下,Fe (III) 改善了Anammox细菌的关键酶合成和能量代谢.
结论:
- (Fe) 添加是一种可行的策略,可以提高Anammox细菌在高度废水中的弹性和性能.
- 这项研究加深了对Anammox细菌在盐水环境中的适应机制的理解.
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