Efficient removal of tetracycline using U-type continuous-flow bioelectrochemical system without ion exchange membrane or cathodic catalyst

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Guodong Zhang
  • Xiaoyu Sui
  • Yangyang Xu
  • Yan Jiao
  • Jo-Shu Chang

Related Research Unit(s)

Detail(s)

Original languageEnglish
Article number126677
Journal / PublicationBioresource Technology
Volume346
Online published6 Jan 2022
Publication statusPublished - Feb 2022

Abstract

A U-type membraneless continuous-flow bioelectrochemical system was developed to efficiently remove tetracycline and antibiotic resistance genes from synthetic wastewaters at hydraulic retention time of only eight hours. At the TC concentration of 20–80 mgL-1 in feed, the removals of tetracycline all exceeded 95%, over 60–1200 mgL-1 chemical oxygen demand, 30–150 mgL-1 NH4+-N, and at 5–25 °C, superior to the performances reported in literature. The maximum power of the BES system peaked at 0.416 Wm−3 at 20 mgL-1 TC feeding, corresponding to open circle voltage of 0.90 V and internal resistance of 799.8 Ω. The community analysis showed that the elevated TC loadings forced the predominate population to be evolved to TC-degrading consortium. The relative abundances of tetA, tetC, tetO, tetQ, and tetW in treated effluent ranged 1.20 × 10-6 to 2.60 × 10-4, revealing that the present BES reactor has superior removal efficiency of antibiotic resistance genes.

Research Area(s)

  • Antibiotic resistance genes, Bioelectrochemical system, Continuous-flow, Membrane-less, Removal, Tetracycline

Citation Format(s)

Efficient removal of tetracycline using U-type continuous-flow bioelectrochemical system without ion exchange membrane or cathodic catalyst. / Zhang, Guodong; Sui, Xiaoyu; Xu, Yangyang; Jiao, Yan; Chang, Jo-Shu; Lee, Duu-Jong.

In: Bioresource Technology, Vol. 346, 126677, 02.2022.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review