在废水处理系统中减轻基质抑制的战略
Beiying Li1, Conghe Liu1, Jingjing Bai1
1Key Laboratory of Agro-Forestry Environmental Processes and Ecological Regulation of Hainan Province, School of Environmental Science and Engineering, Hainan University, Haikou, 570228, China.
Nature communications
|September 10, 2024
概括
这项研究通过将细菌群体暴露在高水平的非致命基质中,提高了对酸盐等抑制剂的耐受性,从而提高了废水处理的稳定性. 这种方法提高了系统的弹性,并确保了稳定的废水质量.
科学领域:
- 环境科学 环境科学
- 微生物学 微生物学
- 生物技术是生物技术.
背景情况:
- 城市化增加了废水处理需求.
- 微生物过程中的基质抑制导致不稳定的废水排放.
- 提高微生物耐受性对于可持续的废水处理至关重要.
研究的目的:
- 通过非致命的高基板环境来研究增强细菌社区耐受性.
- 为了评估这种方法的可行性,使用被酸盐抑制的anammox工艺.
- 提高生物废水处理系统的稳定性和抗脆弱性.
主要方法:
- 人工创建一个非致命的高基板环境.
- 将anammox细菌群体暴露在高度的酸盐中.
- 测量特定的anammox活性和系统对酸盐冲击的抵抗力.
主要成果:
- 非致命的高基质环境显著提高了anammox细菌中的酸盐耐受性.
- 在高酸盐水平下,特定的anammox活性增加了高达24.71倍.
- 耐受性系统表现出对酸盐冲击的两倍抵抗力,增强了抗脆弱性,并将主导属转移到Candidatus Jettenia.
结论:
- 提出的方法有效地提高了微生物对抑制基质的耐受性.
- 这种方法提高了废水处理系统的稳定性和弹性,特别是anammox工艺.
- 该战略为实现稳定的生物废水处理和满足环境标准提供了一个有希望的解决方案.
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