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[期刊论文]

Triclocarban shifted the microbial communities and promoted the spread of antibiotic resistance genes in nitrifying granular sludge system

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作者:

Wang, Zhiqi (Wang, Zhiqi.) | Gao, Jingfeng (Gao, Jingfeng.) (学者:高景峰) | Wang, Shijie (Wang, Shijie.) | 展开

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EI Scopus SCIE

摘要:

Triclocarban (TCC) is in great market demand especially after the outbreak of COVID-19 pandemic, becoming an emerging pollutant. However, the impacts of TCC on the performance of nitrifying granular sludge system and the occurrence of antibiotic resistance genes (ARGs) were still unknown. This work explored the impacts of different concentrations of TCC on nitrifying granular sludge. Results showed that TCC suppressed the activities of ammonia-oxidizing microorganisms and decreased the abundance of Nitrospira. Adsorption was the main way for the removal of TCC and the biodegradation efficiency of TCC increased to 28.00% under 19.70 mg/L TCC addition. TCC enriched the ARGs and promoted the risks of their transferring in microorganisms. Pseudomonas might not only have strong resistance to TCC, but also propagate ARGs. The removal process of TCC and bacterial communities were important factors to promote the spread of ARGs. Thus, the existence of TCC presented a great environmental risk.

关键词:

Antibiotic resistance genes Nitrifying granular sludge performance Bacterial community structure Triclocarban

作者机构:

  • [ 1 ] [Wang, Zhiqi]Beijing Univ Technol, Fac Environm & Life, Natl Engn Lab Adv Municipal Wastewater Treatment, Beijing 100124, Peoples R China
  • [ 2 ] [Gao, Jingfeng]Beijing Univ Technol, Fac Environm & Life, Natl Engn Lab Adv Municipal Wastewater Treatment, Beijing 100124, Peoples R China
  • [ 3 ] [Wang, Shijie]Beijing Univ Technol, Fac Environm & Life, Natl Engn Lab Adv Municipal Wastewater Treatment, Beijing 100124, Peoples R China
  • [ 4 ] [Zhao, Yifan]Beijing Univ Technol, Fac Environm & Life, Natl Engn Lab Adv Municipal Wastewater Treatment, Beijing 100124, Peoples R China
  • [ 5 ] [Dai, Huihui]Beijing Univ Technol, Fac Environm & Life, Natl Engn Lab Adv Municipal Wastewater Treatment, Beijing 100124, Peoples R China
  • [ 6 ] [Li, Dingchang]Beijing Univ Technol, Fac Environm & Life, Natl Engn Lab Adv Municipal Wastewater Treatment, Beijing 100124, Peoples R China
  • [ 7 ] [Cui, Yingchao]Beijing Univ Technol, Fac Environm & Life, Natl Engn Lab Adv Municipal Wastewater Treatment, Beijing 100124, Peoples R China
  • [ 8 ] [Li, Ziqiao]Beijing Univ Technol, Fac Environm & Life, Natl Engn Lab Adv Municipal Wastewater Treatment, Beijing 100124, Peoples R China

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来源 :

BIORESOURCE TECHNOLOGY

ISSN: 0960-8524

年份: 2022

卷: 347

1 1 . 4

JCR@2022

1 1 . 4 0 0

JCR@2022

ESI学科: BIOLOGY & BIOCHEMISTRY;

ESI高被引阀值:43

JCR分区:1

中科院分区:1

被引次数:

WoS核心集被引频次: 25

SCOPUS被引频次: 29

近30日浏览量: 0

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