从低C/N污水中通过插头流动的无氧/氧/无氧 (AOA) 工艺提升N去除:通过部分化,内源性脱化,部分脱化和anammox (PNEnD/A) 强化

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Updated: Jun 12, 2025

Measurement of the Potential Rates of Dissimilatory Nitrate Reduction to Ammonium Based on 14NH4+/15NH4+ Analyses via Sequential Conversion to N2O

Measurement of the Potential Rates of Dissimilatory Nitrate Reduction to Ammonium Based on 14NH4+/15NH4+ Analyses via Sequential Conversion to N2O

Published on: October 7, 2020

Huaguang Liu¹, Jie Liu², Liang Zhang²

¹School of Civil and Environmental Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China.

|September 20, 2024

概括

在废水处理中实现先进的去除具有挑战性. 这项研究介绍了一种新的无氧/有氧/无氧系统,具有混合绕道,增强内源碳脱和无氧氧化,以有效去除.

科学领域:

环境工程环境工程
微生物学微生物学
废水处理技术废水处理技术

背景情况:

从市政废水处理厂 (WWTPs) 进行低成本的先进的除是一个重大的环境挑战.
现有的方法往往在WWTP中常见的低C/N比率影响下扎.

研究的目的:

开发和评估一个新的插头流动无氧/氧/无氧 (AOA) 系统,集成混合绕道 (MBP).
通过生物过程的组合,从低C/N比率的城市污水中有效地去除总无机 (TIN).

主要方法:

使用MBP构建一个AOA系统,旨在整合部分化 (PN),内源碳脱化 (EnD),部分脱化 (PD) 和无氧氨氧化 (Anammox).
在稳定的运行条件下处理实际的市政污水,其C/N比率较低.
质量平衡分析以量化不同去除途径的贡献.

主要成果:

该系统实现了93.1 ± 2.0%的高总无机 (TIN) 清除效率,废水度为2.9 ± 0.9 mg/L.
内源性碳脱 (EnD) 和无氧氨氧化 (Anammox) 被确定为主要去除途径,分别贡献了40.8%和48.2%.
稳定的部分化 (PN) 达到92.6%的化物积累,由载体和胺添加物促进.

结论:

在AOA系统中与MBP集成的PNEnD/A过程提供了一种创新和有效的方法,用于低成本的WWTP中先进的去除.
该系统的成功依赖于多种细菌群体的协同作用,包括氨氧化细菌,脱细菌,糖原积聚生物和无氧氨氧化细菌.
MBP 战略通过促进聚氨基酸的利用来增强 EnD,并促进 PD 和 Anammox 的合.

关键词:

在AOA过程中,AOA的过程是AOA.亚纳姆莫克斯 (Anammox) 是一个内源性碳脱化是一种内源性碳脱化.部分脱化部分脱化部分化部分化

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