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Author:

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

Indexed by:

EI Scopus SCIE PubMed

Abstract:

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.

Keyword:

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

Author Community:

  • [ 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

Reprint Author's Address:

  • 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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Source :

BIORESOURCE TECHNOLOGY

ISSN: 0960-8524

Year: 2020

Volume: 311

1 1 . 4 0 0

JCR@2022

ESI Discipline: BIOLOGY & BIOCHEMISTRY;

ESI HC Threshold:136

Cited Count:

WoS CC Cited Count: 33

SCOPUS Cited Count: 34

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 4

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