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工程稳定部分化/内源部分脱-anammox工艺,以提高从低碳-比废水中提取的效果

Mingchang Gao¹, Shaofang Sun², Changtao Shao³

¹School of Water Conservancy and Environment, University of Jinan, Jinan 250022, China; School of Civil Engineering and Architecture, University of Jinan, Jinan 250022, China.

Bioresource technology

|April 1, 2025

概括

一种新的一级部分化/内源部分脱-亚纳摩克斯 (PN/EPD-A) 工艺克服了低碳化废水处理方面的挑战. 这种方法通过确保稳定的酸盐供应和快速丰富阿纳莫克斯细菌,实现了高的去除效率.

科学领域:

环境生物技术环境生物技术
废水处理工程废水处理工程
微生物生态学微生物生态学

背景情况:

低碳比 (C/N) 的废水处理面临的挑战是酸盐的不稳定性和安纳摩克斯工艺的缓慢启动.
传统方法在这些条件下难以有效地去除,需要创新的方法.

研究的目的:

开发和评估一阶段的部分化/内源部分化-anammox (PN/EPD-A) 工艺.
为了解决低C/N废水在anammox系统中酸盐不稳定性和缓慢启动的局限性.

主要方法:

实施一个测序批量生物膜反应器 (SBBR) 来合部分化 (PN) 和内源部分化-anammox (EPD-A).
使用量身定制的空气化策略和载体材料设计了一种分层生物膜结构.
进行微生物社区分析,以评估细菌种群及其稳定性.

主要成果:

实现了总去除效率为83.3%,anammox贡献了75.8%的去除.
通过PN和EPD的协同合,证明了对anammox的自给自足的化物供应.
证实了关键微生物群体的稳定共存:阿纳莫克斯细菌 (1.36%),氨氧化细菌 (2.19%) 和糖原积聚生物 (9.80%).

结论:

拟议的PN/EPD-A工艺提供了一种强大而有效的战略,用于从低C/N比率的废水中去除.
工程化生物膜结构和合过程克服了传统anammox应用的关键限制.
这种方法在可持续的废水处理中具有更广泛的应用潜力.

关键词:

这种细菌是Anammox细菌.生物膜分层分层是生物膜的分层.间歇性通风间歇性通风微生物的协同作用提供化物供应.

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