在盐度应激下通过生物增量硫胺的增强自营性脱化:性能评估,微生物群落和反应机制
Liang Cui1, Shasha Wang1, Xiaxing Cao1
1State Key Laboratory Breeding Base of Marine Genetic Resources, Third Institute of Oceanography, MNR, Xiamen, PR China.
Bioresource technology
|July 13, 2025
概括
使用耐盐硫菌株进行生物增量,可显著增强高盐度废水中硫自脱 (SADN) 的作用. 这种方法提高了除效率超过98.50%,即使增加盐度.
科学领域:
- 环境微生物学 环境微生物学
- 废水处理工程 废水处理工程
- 生物技术是生物技术.
背景情况:
- 硫自脱 (SADN) 是工业废水处理的一个关键过程.
- 高盐度通常会抑制SADN的性能,限制其应用.
- 开发耐盐微生物溶液对于在盐水环境中有效去除至关重要.
研究的目的:
- 为了提高在高盐度废水中硫自无化 (SADN) 的性能.
- 通过使用孤立的耐盐 Sulfurimonas 菌株来研究生物增强的有效性.
- 分析微生物社区动态和基因表达在盐度增加的情况下.
主要方法:
- 使用测序批量生物膜反应器 (SBBR) 进行增强的SADN.
- 生物增强了反应堆与隔离的盐耐受性Sulfurimonas菌株.
- 监测了去除效率,微生物群体组成 (16S rRNA测序) 和在不同盐度水平 (1-4%) 下的基因丰度.
主要成果:
- 生物增量提高了脱效率,从70.21%提高到98.79%.
- 尽管盐度从1%增加到4%,但去除效率仍然稳定在98.50%以上.
- 随着盐度的增加,硫化的丰度增加,成为占主导地位的分类体,并与其他微生物展现竞争性相互作用.
结论:
- 使用耐盐硫的生物增量是一种有效的策略,用于SADN在高盐度废水中.
- 这种方法在具有挑战性的工业废水条件下确保了高除效率.
- 该研究为碳有限,高盐度的环境中酸盐去除提供了可行的替代方案.
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