The nitrogen removal performance and microbial community on mixotrophic denitrification process

被引：46

作者：

Zheng, Shaohong ^{[1
]}

Liu, Xiangyin ^{[1
]}

Yang, Xiangjing ^{[1
]}

Zhou, Hongen ^{[1
]}

Fang, Jin ^{[1
]}

Gong, Siyuan ^{[1
]}

Yang, Junfeng ^{[1
]}

Chen, Jiannv ^{[1
]}

Lu, Tiansheng ^{[1
]}

Zeng, Ming ^{[1
]}

Qin, Yujie ^{[1
,2
]}

机构：

[1] South China Univ Technol, Guangzhou Higher Educ Mega Ctr, Sch Environm & Energy, Guangzhou 510006, Peoples R China

[2] South China Univ Technol, Guangzhou Higher Educ Mega Ctr, Key Lab Pollut Control & Ecosyst Restorat Ind Clus, Guangzhou, Peoples R China

来源：

BIORESOURCE TECHNOLOGY | 2022年 / 363卷

基金：

中国国家自然科学基金;

关键词：

Heterotrophic denitrifiersf; Autotrophic denitrifiers; Mixotrophic denitrification; Extracellular polymeric substances;

D O I：

10.1016/j.biortech.2022.127901

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

Sulfur autotrophic denitrifiers and heterotrophic denitrifiers widely exist in aquatic ecosystem, however, the response of sulfide to the microbial community structure in mixotrophic denitrification ecosystem is unknown yet. In this study, the denitrification performance and microbial community were explored by changing the molar ratio of influent C/N/S. From the level of genus, the joint action of Thauera, Pacacoccus, Fusibacter Pseudoxanthomonas, Thiobacillus, Sulfurovum and Sulfurimonas brought about the efficient denitrification performance in the mixotrophic system. Thauera increased from from 0.97% to more than 13%, and the relative abundances of Thiobacillus and Sulfurimonas were about 4.14% and 3.89% separately after adding S2-. The re-sults of this study showed that the denitrification performance could be indeed intensified in the mixotrophic system, among which provided a theoretical basis for establishing an efficient biological nitrogen removal system.

引用

页数：9

共 39 条

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