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使用葡萄糖去除有氧颗粒污泥中的酸盐

Ali Elahinik¹, Linghang Li¹, Martin Pabst¹

¹Department of Biotechnology, Delft University of Technology, van der Maasweg 9, Delft 2629HZ, the Netherlands.

|October 28, 2023

概括

有氧颗粒污泥有效地使用可发酵基质葡萄糖去除酸盐. 这项研究证明了葡萄糖的存在.

科学领域:

环境生物技术环境生物技术
废水处理废水处理
微生物生态学微生物生态学

背景情况:

有氧颗粒污泥 (AGS) 对于增强的生物酸盐去除 (EBPR) 是至关重要的.
脂肪酸是EBPR的常见基质,但像葡萄糖这样的可发酵基质研究较少.
有限的研究存在于AGS的葡萄糖转化及其对酸盐去除效率的影响.

研究的目的:

为了研究有氧颗粒污泥的葡萄糖转化.
评估葡萄糖作为基质对生物酸盐去除的影响.
描述在AGS中参与葡萄糖代谢的微生物群体和代谢途径.

主要方法:

使用有氧颗粒污泥作为唯一碳来源的葡萄糖进行长期实验.
监测酸盐的吸收/释放,基质消耗和副产品的形成.
定量光现场杂交 (qFISH) 和元基因组分析以确定微生物种群 (例如,PAO,Micropruina,Ca. 积聚的细菌).

主要成果:

使用葡萄糖实现了稳定的酸盐去除和成功的有氧颗粒化.
葡萄糖迅速无氧消耗,导致酸盐的释放和随后的吸收.
乳酸是主要的发酵产物,与酸盐释放直接相关;观察到多基酸盐和糖原储存.

结论:

有氧颗粒污泥技术对于处理含有葡萄糖的废水是有效的,葡萄糖支持有效的酸盐去除.
在可发酵基质条件下,由发酵生物和聚酸盐积累生物 (PAO) 组成的微生物群体会发展.
该研究证实葡萄糖是AGS系统中EBPR的合适基质,强调了微生物联盟的适应性.

关键词:

有氧颗粒污泥的有氧颗粒污泥这是因为. 积累了一些细菌.增强了生物去除的功能.发酵性GAO是一种GAO.微型蛋白质 (Micropruina) 是一种微型蛋白质.蛋白质组学是指蛋白质组学.

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