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生物促进剂驱动的4-二醇转化为可利用的碳来源:增强电子供应-消费,减轻生物毒性
Qian Wang1, Enlei Liang2, Xuezhuang Liu2
1School of Environmental and Municipal Engineering, Tianjin Chengjian University, Tianjin, 300384, China; Tianjin Key Laboratory of Aquatic Science and Technology, Tianjin 300384, China.
Water research
|July 6, 2025
概括
这项研究引入了一种复合生物促进剂,将有毒的4-二醇转化为可用的碳来源,显著提高了废水脱和去除效率.
科学领域:
- 环境科学 环境科学
- 生物技术是生物技术.
- 微生物学 微生物学
背景情况:
- 4-二醇 (4-CP) 是一种有毒的污染物,阻碍了生物废水处理,特别是脱.
- 4-CP抑制了像酸盐减少酶 (NAR) 和酸盐减少酶 (NIR) 这样的关键酶,并通过诱导氧化应激而损害了微生物代谢.
研究的目的:
- 开发一种复合生物促进剂,将4-CP转化为可用的碳源.
- 为了增强电子供应,减弱4-CP的生物毒性,并改善废水处理中的去除.
主要方法:
- 合成了一种复合生物促进剂,将一种基本的生物促进剂 (生长因子,解毒剂) 与聚酸 (PMo12) 结合起来.
- 评估了4-CP和生物促进剂对去除,酶活性,脂质过氧化和基因表达的影响.
主要成果:
- 复合生物促进剂恢复了去除96.43%,比自我恢复提高53.20%,在33T内.
- 它增强了生物质的1.63倍,改善了氧化-抗氧化剂平衡,并调节了关键的脱基因 (napA,narG,nirS).
- 介导的电子穿和增加的黄胺二核酸水平促进了增强的电子转移和减少细胞损伤.
结论:
- 复合生物促进剂有效地将4-CP转化为可用的碳来源,减轻其毒性并促进脱.
- 基本生物促进剂和PMo12的协同作用提高了微生物代谢和去除效率.
- 像Acidovorax这样的特定细菌在4-CP的结合代谢和脱过程中起着至关重要的作用.
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