厌氧氨氧化菌
废水
污染物
污水处理
工业废水处理
环境科学
氮气循环
营养污染
细菌
微生物
生物膜
水生生态系统
硝基螺
生物降解
硝化作用
微生物种群生物学
环境化学
化学
蛋白质细菌
生物
污染
基因组
活性污泥
流出物
环境工程
反硝化
氮气
生物修复
微生物生态学
生态学
反硝化细菌
有机化学
作者
Wenning Mai,Jiamin Chen,Hai Liu,Jingtao Liang,Jinfeng Tang,Yongjun Wei
标识
DOI:10.3389/fmicb.2021.746293
摘要
The discharge of excess nitrogenous pollutants in rivers or other water bodies often leads to serious ecological problems and results in the collapse of aquatic ecosystems. Nitrogenous pollutants are often derived from the inefficient treatment of industrial wastewater. The biological treatment of industrial wastewater for the removal of nitrogen pollution is a green and efficient strategy. In the initial stage of the nitrogen removal process, the nitrogenous pollutants are converted to ammonia. Traditionally, nitrification and denitrification processes have been used for nitrogen removal in industrial wastewater; while currently, more efficient processes, such as simultaneous nitrification-denitrification, partial nitrification-anammox, and partial denitrification-anammox processes, are used. The microorganisms participating in nitrogen pollutant removal processes are diverse, but information about them is limited. In this review, we summarize the microbiota participating in nitrogen removal processes, their pathways, and associated functional genes. We have also discussed the design of efficient industrial wastewater treatment processes for the removal of nitrogenous pollutants and the application of microbiome engineering technology and synthetic biology strategies in the modulation of the nitrogen removal process. This review thus provides insights that would help in improving the efficiency of nitrogen pollutant removal from industrial wastewater.
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