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在硫驱动的自营性脱系统中,对热生成生物炭的机制进行元分析可以增强去除性能:来自元转录学学的证据

Wen-Jie Ma¹, Han-Min Zhang¹, Zi-Shang Ma¹

¹Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education, MOE), School of Environmental Science and Technology, Dalian University of Technology, No.2 Linggong Road, Dalian 116024, PR China.

|February 17, 2024

概括

将生物炭 (BC300) 添加到硫驱动的自无化 (SAD) 中,通过增强电子转移和微生物活动,显著增加了去除. 这种具有成本效益的方法提高了废水处理效率.

科学领域:

环境微生物学环境微生物学
生物技术是生物技术.
废水处理废水处理

背景情况:

硫驱动的自脱 (SAD) 对于低碳/低废水是有效的.
在SAD过程中提高去除效率仍然是一个关键的挑战.

研究的目的:

调查生物炭添加在改善SAD中提取的有效性.
阐明生物炭增强SAD表现的潜在机制.

主要方法:

在300°C (BC300) 准备的生物炭添加到SAD系统中.
对去除效率,电子产生和电子转移系统活动的分析.
基因表达分析 (NADH脱酶,脱酶,Clp,定数感应).
生物炭性质的表征 (O%,H%,分子O/C,芳香度).

主要成果:

BC300 提高了 31.60% 的去除效率.
BC300增强了电子产生,细胞外聚合物物质电活性和细胞内电子转移.
提高NADH/NAD+比率,NAD(P) H脱酶和与脱相关的基因 (nar, nir, nor, nos) 的调节.
观察到Clp和定数感应系统的激活.

结论:

生物炭 (BC300) 是一个有希望的,环保的添加剂,用于增强SAD中的去除.
关键的生物炭特性 (O%,H%,分子O/C,芳香度) 对于性能至关重要.
生物炭通过改善电子转移,微生物活动和基因表达来增强SAD.

关键词:

生物炭是一种生物炭.电子传输系统的电子传输系统.低碳/低废水的废水.转录基因组学 (Metatranscriptomics) 是一种转录基因组学.硫驱动的自性脱化.

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