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商业粉状活性炭在低温下通过硫驱动的自无化实现了高效的去除
Wen-Jie Ma1, Zi-Shang Ma1, Zi-Jing An1
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, P. R. China.
Environmental research
|January 29, 2026
概括
添加粉状活性炭 (PAC) 显著提高了冷废水处理中的硫驱动自无化 (SAD) 效率. 这种可持续的方法增强了在低温下去除和微生物的稳定性.
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:
- 硫驱动的自脱 (SAD) 提供可持续的酸盐去除,但在低温下效率降低.
- 低温显著阻碍了SAD过程的性能,限制了它们在寒冷气候中的应用.
研究的目的:
- 为了研究粉状活性炭 (PAC) 在低温下增强SAD期间的去除效果.
- 阐明PAC在寒冷条件下提高脱能力的机制.
主要方法:
- 在10-15°C之间的温度下,对具有或没有添加PAC的SAD反应堆进行比较研究.
- 酶活性测定 (酸盐和酸盐减少酶),细胞外聚合物物质 (EPS) 分析和生物电化学测量.
- 使用16S rRNA测序和元基因组测序进行微生物社区分析.
主要成果:
- 与10-15°C的控制反应堆相比,PAC的添加增加了1.38倍 (80.38%) 的去除效率.
- PAC增强了关键酶的活性,刺激了EPS的产生,并提高了电子转移速率.
- 微生物分析显示,PAC增加了关键的脱细菌 (例如,Ferruginibacter,Dokdonella) 的稳定性,强度和丰富性.
- 甲基因组数据显示了参与新陈代谢,生物合成和与脱和硫氧化相关的特定功能基因相关的途径的丰富.
结论:
- 粉末活性炭 (PAC) 是一种可行的添加剂,用于增强在低温下运行的SAD废水处理过程中的去除.
- 通过优化微生物活动,增强电子转移,并促进有益的脱细菌的生长,PAC提高了SAD的性能.
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