WUYan-cheng,LENGJun-tong,ZHANGKai,et al.Research Progress of Heterotrophic Nitrification-Aerobic Denitrification Bacteria[J].China Water & Wastewater,2023,39(22):37-45.
异养硝化好氧反硝化菌的研究进展
- Title:
- Research Progress of Heterotrophic Nitrification-Aerobic Denitrification Bacteria
- Keywords:
- biological nitrogen removal; heterotrophic nitrification-aerobic denitrification bacteria; influential factor; denitrification pathwa
- 摘要:
- 异养硝化好氧反硝化（Heterotrophic nitrification-aerobic denitrification， HNAD）菌因其能同时进行异养硝化和好氧反硝化过程，在单一好氧条件下完成生物脱氮，具有自养硝化微生物（Autotrophic nitrifying organisms， ANOs）和普通异养微生物（Ordinary heterotrophic organisms， OHOs）不具有的优势而备受关注。对HNAD菌的种属分布、脱氮性能的影响因素，与HNAD过程有关的酶、功能基因和脱氮途径进了综述，并讨论了HNAD菌与ANOs和OHOs脱氮过程的差异，对未来HNAD过程的发展前景进行了展望。
- Abstract:
- Heterotrophic nitrification-aerobic denitrification (HNAD) bacteria have drawn more and more attention as possessing the advantages that autotrophic nitrifying organisms (ANOs) and ordinary heterotrophic organisms (OHOs) do not have, such as, conducting the nitrification and denitrification processes simultaneously, and fulfilling the biological denitrification process under completely aerobic conditions. The distribution of HNAD bacteria, the factors affecting the denitrification performance, related enzymes and functional genes, and denitrification pathways were summarized. In addition, the differences among the HNAD, ANOs and OHOs bacteria were also discussed. Eventually, the future development of the HNAD was prospected.
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