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作者:

Duan, Wan-Jun (Duan, Wan-Jun.) | Gao, Jing-Feng (Gao, Jing-Feng.) (学者:高景峰) | Zhang, Wen-Zhi (Zhang, Wen-Zhi.) | Wang, Yu-Wei (Wang, Yu-Wei.) | Liu, Jie (Liu, Jie.)

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摘要:

Two sludge conditioning modes (nanoscale zero valent iron modified by Ginkgo biloba L. leaf (G-nZVI)/sodium persulfate (PS) conditioning with different ratios (1:0, 1:0.1, 1:1 and 1:10) and G-nZVI/PS conditioning with continuous addition) in reducing the specific resistance of filtration (SRF) and removing antibiotic resistant genes (ARGs) were investigated. After 3 min, the SRF values decreased in following order: 2.45 x 10(8) m/kg (1:10) > 5.95 x 10(6) m/kg (1:0.1) > 3.72 x 10(6) m/kg (1:0) > 4.92 x 10(5) m/kg (1:1). In the continuous addition (1:1), the SRF value decreased from 1.04 x 10(8) m/kg to 6.47 x 10(6) m/kg at 9 min. Removal efficiency of ARGs was 2-6 orders of magnitude and no regeneration of ARGs was observed in sludge and water phase. When treated samples were incubated for 36 h, dominant microflora was negatively correlated with ARGs. This study revealed persulfate treatment could achieve dewatering and remove ARGs, simultaneously.

关键词:

Regeneration Ginkgo biloba L. leaf modified nanoscale zero-valent iron Bacterial community structure Dewatering of waste activated sludge Persulfate treatment Antibiotic resistance genes

作者机构:

  • [ 1 ] [Duan, Wan-Jun]Beijing Univ Technol, Natl Engn Lab Adv Municipal Wastewater Treatment, Beijing 100124, Peoples R China
  • [ 2 ] [Gao, Jing-Feng]Beijing Univ Technol, Natl Engn Lab Adv Municipal Wastewater Treatment, Beijing 100124, Peoples R China
  • [ 3 ] [Zhang, Wen-Zhi]Beijing Univ Technol, Natl Engn Lab Adv Municipal Wastewater Treatment, Beijing 100124, Peoples R China
  • [ 4 ] [Wang, Yu-Wei]Beijing Univ Technol, Natl Engn Lab Adv Municipal Wastewater Treatment, Beijing 100124, Peoples R China
  • [ 5 ] [Liu, Jie]Beijing Univ Technol, Natl Engn Lab Adv Municipal Wastewater Treatment, Beijing 100124, Peoples R China

通讯作者信息:

  • 高景峰

    [Gao, Jing-Feng]Beijing Univ Technol, 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: 2020

卷: 311

1 1 . 4 0 0

JCR@2022

ESI学科: BIOLOGY & BIOCHEMISTRY;

ESI高被引阀值:136

被引次数:

WoS核心集被引频次: 31

SCOPUS被引频次: 29

ESI高被引论文在榜: 0 展开所有

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