游离亚硝酸主导的短程硝化调控策略研究进展

吕雪儿; 李玥; 唐睿; 吴钧; 周振

doi:10.13205/j.hjgc.202512005

游离亚硝酸主导的短程硝化调控策略研究进展

doi: 10.13205/j.hjgc.202512005

吕雪儿¹,
李玥²,
唐睿^1, ,,
吴钧²,
周振¹

1. 上海电力大学环境与化学工程学院, 上海 200090;
2. 上海城投污水处理有限公司, 上海 201203

基金项目:

国家自然科学基金青年科学基金项目（52400050）

详细信息

作者简介:
吕雪儿（1999—），女，研究生，主要研究方向为污水资源化。lvxueer1026@163.com

通讯作者:
唐睿（1991—），男，博士，主要研究方向为污水低碳处理与资源化。tangrui@shiep.edu.cn

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出版历程
- 收稿日期: 2025-01-01
- 录用日期: 2025-04-23
- 修回日期: 2025-03-23
- 网络出版日期: 2026-01-09

Research advancements in free nitrous acid-mediated strategies for partial nitrification regulation

LÜ Xueer¹,
LI Yue²,
TANG Rui^{1
, ,},
WU Jun²,
ZHOU Zhen¹

1. College of Environmental and Chemical Engineering, Shanghai University of Electric Power, Shanghai 200090, China;
2. Shanghai Chengtou Wastewater Treatment Co. Ltd., Shanghai 201203, China

摘要

摘要: 短程硝化（PN）是在“双碳”战略目标与日趋严格的污水排放要求下实现低碳高效脱氮的重要途径。对基于游离亚硝酸（FNA）抑制实现PN的研究进行了总结与梳理；分析了FNA的抑菌机制，主要包括降低胞内pH和裂解成具有强烈抑菌效能的活性物种；总结了氨氧化菌（AOB）与亚硝酸盐氧化菌（NOB）的分异响应规律，指出耐FNA的NOB（Candidatus Nitrotoga）的富集是FNA介导的PN失稳的关键之一；分析了FNA单一抑制下PN仍然存在难以长效稳定运行的问题，与耐酸型AOB结合构建酸性PN和与抑制机制互异的其他因子联合抑制，是应对NOB适应性的有效方法；对比分析了FNA抑制策略的应用方式，包括主流原位抑制和侧流污泥处理两种，分析其技术特点和适用范围。同时，展望了FNA主导的PN调控策略的未来发展，旨在为基于FNA调控的低碳高效脱氮技术的研究与应用提供参考。
- 游离亚硝酸 /
- 短程硝化 /
- NOB抑制 /
- 耐酸型AOB /
- 联合策略
Abstract: Partial nitrification （PN） is an important avenue to achieve low-carbon and efficient nitrogen removal under the Dual-Carbon goals， and increasingly stringent wastewater discharge requirements. This paper reviews and summarizes studies on achieving PN through the inhibition of free nitrous acid （FNA）. The antibacterial mechanisms of FNA， which primarily include reducing intracellular pH and decomposing into active species with strong antibacterial effects， are analysed. The differential responses of ammonia-oxidizing bacteria （AOB） and nitrite-oxidizing bacteria （NOB） are summarized， with emphasis on the enrichment of FNA-tolerant NOB （Candidatus Nitrotoga）， as a key factor causing a failure in FNA-mediated PN. Challenges in achieving long-term stable operation of PN under FNA inhibition are analysed， and combining FNA inhibition with acid-tolerant AOB to construct acidic PN， or integrating FNA with other inhibitory factors with different mechanisms are identified as effective approaches to counteract NOB adaptability. FNA inhibition strategies， including mainstream in-situ inhibition and sidestream sludge pretreatment， are comprehensively analysed， highlighting their technical characteristics and applicable scopes. Finally， the future development of FNA-driven PN regulation strategies is discussed. This paper can provide a valuable reference for the research and application of low-carbon and efficient nitrogen removal technologies regulated by FNA.
- free nitrous acid /
- partial nitrification /
- NOB inhibition /
- acid-tolerant AOB /
- combined strategy

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