| 异养硝化―好氧反硝化细菌在海水养殖废水脱氮中的研究进展 |
| Research Progress on Heterotrophic Nitrification-Aerobic Denitrification Bacteria in the Denitrification of Mariculture Wastewater |
| 投稿时间：2022-08-22 修订日期：2022-10-21 |
| DOI：10.15928/j.1674-3075.202208220333 |
| 中文关键词:养殖废水 脱氮菌 生物学机制 环境因子 工艺参数 |
| 英文关键词:mariculture wastewater denitrification bacteria biological mechanism environmental factors process parameter |
| 基金项目:国家自然科学基金项目（32273186）；国家重点研发计划项目（2019YFD0900501）；辽宁省科学技术计划项目（2021JH2/10200012）；大连市支持高层次人才创新创业项目（2020RQ111）；设施渔业教育部重点实验室开放课题项目（202211） |
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| 中文摘要: |
| 异养硝化―好氧反硝化（heterotrophic nitrification-aerobic denitrification, HN-AD）脱氮技术可在好氧条件下同步实现硝化/反硝化过程，在海水养殖废水生物脱氮处理中具有显著的优势。通过梳理海水环境中HN-AD菌的分离筛选研究进展，结合关键功能基因和酶系分析了HN-AD脱氮途径与机制，并归纳了碳源、碳氮比、溶解氧、氮源、温度、pH以及新型污染物等主要环境因子对HN-AD菌脱氮效果的影响。今后需进一步通过常规和分子生物学手段获得高效脱氮菌株，借助多组学手段阐明脱氮途径与机制，厘清环境因素影响HN-AD菌的分子生物机制以获得最优工艺参数。 |
| 英文摘要: |
| Heterotrophic nitrification-aerobic denitrification (HN-AD) technology can simultaneously produce nitrification and denitrification under aerobic conditions, a significant advantage for the biological denitrification of marine aquaculture wastewater. In this study, we reviewed recent research on the isolation and screening HN-AD bacteria in seawater, the denitrification pathway and mechanism of HN-AD bacteria, and the key functional genes and enzymes guiding denitrification. The effects of primary environmental factors (carbon source, carbon-nitrogen ratio, dissolved oxygen, nitrogen source, temperature, pH and emerging contaminants) on nitrogen removal by HN-AD bacteria were also summarized. Finally, prospects for future research were discussed for optimizing the biological denitrification of marine aquaculture wastewater. Promising research directions include obtaining high-efficiency denitrification strains by conventional and molecular methods, elucidating the mechanism of nitrogen removal using a multi-omics approach, and clarifying the molecular mechanism of environmental factors affecting HN-AD bacteria. Our study provides a reference for the practical application of HN-AD bacteria in treating wastewater from mariculture. |
| 周鹏,刘鹰,慕欣廷,苏鑫,吴英海,韩蕊.2023.异养硝化―好氧反硝化细菌在海水养殖废水脱氮中的研究进展[J].水生态学杂志,44(6):148-157. |
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