Recent advances in partial denitrification in biological nitrogen removal: From enrichment to application.
Recent advances in partial denitrification in biological nitrogen removal: From enrichment to application.
复制标题
DOI：
10.1016/j.biortech.2019.122444
复制
发表时间：
2019-11
影响因子：
11.4
通讯作者：
Zhengzhe Zhang;Yu Zhang;Yinguang Chen
中科院分区：
文献类型：
--
作者：
Zhengzhe Zhang;Yu Zhang;Yinguang Chen
为了最大限度地回收能源，碳捕集后短程脱氮成为生物污水处理中最有前途的路线。亚硝酸盐作为微生物反硝化的中间产物，可以作为厌氧氨氧化菌的底物，而N2O作为燃烧促进剂，可以使CH4释放的能量比O2增加37%。本文综述了以亚硝酸盐或N2O为主要产物的无机或有机电子给体部分反硝化的研究进展。具体而言，通过分析这些微生物的选择压力、代谢、生理和微生物学，获得PD微生物的富集策略。最后，对PD微生物的应用前景和目前应用的瓶颈进行了讨论。所获得的知识将提供新的见解升级目前的污水处理厂涉及的承诺，实现从废水中去除氮更经济和环境友好。
To maximize energy recovery, carbon capture followed by shortcut nitrogen removal is becoming the most promising route in biological wastewater treatment. As the intermediate of microbial denitrification, nitrite could serve as a substrate for anammox bacteria, while N2O is a combustion promoter that can increase 37% energy release from CH4than O2. Therefore, the important advances in partial denitrification (PD) that produces nitrite or N2O as the main product using inorganic or organic electron donors were critically reviewed. Specifically, the enrichment strategies of PD microorganisms were obtained by analyzing the selection pressures, metabolism, physiology, and microbiology of these microorganisms. Furthermore, some prospective and promising processes integrating PD microorganisms and the bottlenecks of current applications were discussed. The obtained knowledge would provide new insights into the upgrading of current WWTPs involving commitment to achieve nitrogen removal from wastewaters more economically and environmentally friendly.