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为了实现低碳需求和高效的营养物质去除:在无氧/无毒/有氧+化系统中建立脱的去除

Meng Bai¹, Weihua Zhao¹, Yanyan Wang¹

¹School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao 266525, PR China.

Bioresource technology

|January 28, 2024

概括

这项研究改进了废水处理,使用双泥系统同时去除和. 该系统实现了优异的营养去除效率,即使在低碳比下,也证明了它的有效性.

科学领域:

环境工程环境工程
微生物学微生物学
水处理技术水处理技术

背景情况:

传统的废水处理系统在与同时去除和作斗争.
低强度废水需要有效地去除营养物质,以防止过度缩.
优化生物营养去除过程对于环境保护至关重要.

研究的目的:

为了研究一个双泥无氧/无毒/有氧 (A2O) +化系统的有效性,以提高低强度废水处理.
为了评估在低碳/比下同时去除和.
为了确定微生物群落,负责营养物质的去除.

主要方法:

采用了两个泥系统,包括一个无氧/无毒/有氧测序批量反应堆 (A2-SBR) 和一个化测序批量反应堆 (N-SBR).
在158天内运行该系统以实现稳定的性能.
使用高通量测序来分析微生物种群.

主要成果:

取得了优异的去除效率:NH4+-N的99.0%,COD的90.0%,PO43--P的92.0%.
废水中的度显著降低:NH4+-N的0.3 mg/L,COD的30.0 mg/L和PO43--P的0.5 mg/L.
丰富的特定微生物:用于去除的A2-SBR中的Dechloromonas和Tetrasphaera,以及用于化的N-SBR中的Nitrosomonas和Nitrospira.

结论:

A2-SBR和N-SBR系统有效地实现了从低强度废水中同时去除和.
确定脱化是主要的代谢途径.
该系统展示了一个有希望的方法,用于高效的营养物质去除与低碳输入.

关键词:

脱化酸盐积聚生物体.这就是 MiSeq 测序.微生物社区的结构和功能.在A前(2) NSBRBR 同时去除和.

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