Biological nitrogen and phosphorus removal by a phosphorus-accumulating bacteria Acinetobacter sp. strain C-13 with the ability of heterotrophic nitrification-aerobic denitrification

文献类型： 外文期刊

第一作者： Chen, Huanjun

作者： Chen, Huanjun;Zhou, Weizheng;Zhu, Shunni;Liu, Fen;Qin, Lei;Wang, Zhongming;Chen, Huanjun;Zhou, Weizheng;Zhu, Shunni;Liu, Fen;Qin, Lei;Wang, Zhongming;Chen, Huanjun;Zhou, Weizheng;Zhu, Shunni;Liu, Fen;Qin, Lei;Wang, Zhongming;Liu, Fen;Xu, Chao

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关键词： Acinetobacter; SNDPR; Nitrogen balance analysis; Phosphorus content; Anaerobic/aerobic

期刊名称：BIORESOURCE TECHNOLOGY （ 影响因子：9.642； 五年影响因子：9.237 ）

ISSN： 0960-8524

年卷期： 2021 年 322 卷

页码：

收录情况： SCI

摘要： Strain C-13, identified as an Acinetobacter sp. by homology searches, exhibited efficient simultaneous hetemtrophic nitrification-aerobic denitrification phosphorus removal (SNDPR) abilities by nitrogen balance analysis and further confirmation of successful amplification of functional genes ppk, napA, and nirS. In addition, strain C-13 could utilize NH4-N, NO3-, and NO2--N as nitrogen sources, among which NH4-N was indicated to be an excellent nitrogen source for assimilation and heterotrophic nitrification. Besides, the optimum conditions for nutrient removal were determined as follows: sodium acetate as the sole carbon source, C/N/P ratio of 100/10/2, pH = 7.5, and temperature of 30 degrees C. Meanwhile, the strain also showed the traditional features, such as release and the excess uptake of phosphate under anaerobic/aerobic conditions, with the highest phosphorus content of 5.01% after cultivation. Strain C-13 presents promising prospects for application in biological nutrient removal in wastewater treatment.

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