Synergistic bioreduction of Te(Ⅳ) using S(0) as electron donor

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

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Author(s)

  • Chunshuang Liu
  • Wei Li
  • Haitong Yu
  • Lihong Liu
  • Dongfeng Zhao

Related Research Unit(s)

Detail(s)

Original languageEnglish
Article number125896
Journal / PublicationBioresource Technology
Volume343
Online published8 Sep 2021
Publication statusPublished - Jan 2022

Abstract

This study for the first time bioreduced Te(IV) using elemental sulfur (S0) as electron donor, achieving 91.17%±0.8% conversion with reaction rate of 0.77 ± 0.01 mg/L/h in a 60-day cultivation. Characterization using X-ray photoelectron spectroscopy and X-ray power diffraction analyses confirmed that most removed Te(IV) was reduced to elemental Te(0) deposits, while ion chromatogram analysis showed that most S(0) was oxidized to sulfite and sulfate. High-throughput 16S rRNA gene sequencing indicated that the Te(IV) reduction coupled to S(0) oxidation was mediated synergistically by a microbial consortia with S(0)-oxidizing bacteria (Thiobacillus) to generate volatile fatty acids as metabolites and Te(IV)-reducing bacteria (Rhodobacter) to consume formed volatile fatty acids to yield Te(0). The synergy between these two strains presents a novel bioremediation consortium to efficiently treat Te(IV) wastewaters.

Research Area(s)

  • Elemental Sulfur, Groundwater, Microbial reduction, Te(IV)

Citation Format(s)

Synergistic bioreduction of Te(Ⅳ) using S(0) as electron donor. / Liu, Chunshuang; Li, Wei; Yu, Haitong; Liu, Lihong; Zhao, Dongfeng; Lee, Duu-Jong.

In: Bioresource Technology, Vol. 343, 125896, 01.2022.

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