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利用本土的定量感应细菌来改善anammox生物反应器的启动和去除

Chuhan Gao¹, Fangfang Xu¹, Jialong Liao²

¹Guangdong Provincial Key Laboratory for Plant Epigenetics, Shenzhen Key Laboratory of Marine Bioresources and Ecology, Shenzhen Key Laboratory of Microbial Genetic Engineering, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, China.

Bioresource technology

|June 3, 2025

概括

土著的定数感应 (QS) 细菌加速了anammox生物反应器的启动,并提高了稳定性. 这种具有成本效益的方法改善了去除和污泥颗粒化,克服了常见的操作挑战.

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.
污水处理污水处理污水处理

背景情况:

亚纳莫克斯生物反应器的启动速度缓慢,对环境敏感.
质量检测 (QS) 具有潜力,但通常使用昂贵的N-acyl homoserine lactones.

研究的目的:

探索本土QS细菌作为提高anammox生物反应器性能的经济有效替代品.
评估QS细菌对生物反应器启动和稳定性的影响.

主要方法:

从阿纳莫克斯颗粒中分离土著QS细菌.
固定和引入四个QS分离物 (Ensifer sp. CH9,Brucella sp. 这种菌种的种类. CH10, 伪人种伪人种伪人种 CH11,Burkholderia sp. 这种植物的种类. CH12) 进入anammox生物反应器.
监测去除效率,系统稳定性,细胞外聚合物质 (EPS) 生产和污泥颗粒化.

主要成果:

QS细菌提高了去除效率和系统稳定性,特别是在启动过程中负载率 (NLR) 增加的情况下.
观察到EPS生产的显著增加和污泥颗粒化的增强.
菌候群 (Candidatus Brocadia) 仍然是占主导地位的微生物群体,其结构动态由NLR和时间驱动.

结论:

本地QS细菌代表了一种可行的,具有成本效益的策略,可以加速anammox生物反应器的启动并提高运行稳定性.
这种方法减轻了与传统的质量保证方法和生物反应器性能相关的挑战.

关键词:

无氧氨氧化氧化无氧氨.N-乙类同类氨酸乳.移除的方法移除的方法在QS上,QS就是QS.

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