Impact of different zero valent iron-based particles on anaerobic microbial dechlorination of 2,4-dichlorophenol: Comparison of dechlorination performance and the underlying mechanism.

Item request has been placed! ×
Item request cannot be made. ×
loading   Processing Request
Read More Add to Saved list
  • Author(s): Ri C;Ri C;Ri C; Li F; Li F; Mun H; Mun H; Mun H; Liu L; Liu L; Tang J; Tang J
  • Source:
    Journal of hazardous materials [J Hazard Mater] 2023 Sep 15; Vol. 458, pp. 131881. Date of Electronic Publication: 2023 Jun 17.
  • Publication Type:
    Journal Article; Research Support, Non-U.S. Gov't
  • Language:
    English
  • Additional Information
    • Source:
      Publisher: Elsevier Country of Publication: Netherlands NLM ID: 9422688 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1873-3336 (Electronic) Linking ISSN: 03043894 NLM ISO Abbreviation: J Hazard Mater Subsets: MEDLINE
    • Publication Information:
      Original Publication: Amsterdam : Elsevier,
    • Subject Terms:
      Chlorophenols*/metabolism ; Water Pollutants, Chemical*; Anaerobiosis ; Iron ; Biodegradation, Environmental ; Water Purification/methods
    • Abstract:
      The integration of iron-based materials and anaerobic microbial consortia has been extensively studied owing to its potential to enhance pollutant degradation. However, few studies have compared how different iron materials enhance the dechlorination of chlorophenols in coupled microbial systems. This study systematically compared the combined performances of microbial community (MC) and iron materials (Fe 0 /FeS 2 +MC, S-nZVI+MC, n-ZVI+MC, and nFe/Ni+MC) for the dechlorination of 2,4-dichlorophenol (DCP) as one representative of chlorophenols. DCP dechlorination rate was significantly higher in Fe 0 /FeS 2 +MC and S-nZVI+MC (1.92 and 1.67 times, with no significant difference between two groups) than in nZVI+MC and nFe/Ni+MC (1.29 and 1.25 times, with no significant difference between two groups). Fe 0 /FeS 2 had better performance for the reductive dechlorination process as compared with other three iron-based materials via the consumption of any trace amount of oxygen in anoxic condition and accelerated electron transfer. On the other hand, nFe/Ni could induce different dechlorinating bacteria as compared to other iron materials. The enhanced microbial dechlorination was mainly due to some putative dechlorinating bacteria (Pseudomonas, Azotobacter, Propionibacterium), and due to improved electron transfer of sulfidated iron particles. Therefore, Fe 0 /FeS 2 as a biocompatible as well as low-cost sulfidated material can be a good alternative for possible engineering applications in groundwater remediation.
      Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
      (Copyright © 2023 Elsevier B.V. All rights reserved.)
    • Contributed Indexing:
      Keywords: 2,4-dichlorophenol; Anaerobic; Ball-milled Fe(0)/FeS(2); Iron-based particles; Microbial dechlorination
    • Accession Number:
      E1UOL152H7 (Iron)
      R669TG1950 (2,4-dichlorophenol)
      0 (Chlorophenols)
      0 (Water Pollutants, Chemical)
    • Publication Date:
      Date Created: 20230628 Date Completed: 20240214 Latest Revision: 20240214
    • Publication Date:
      20240215
    • Accession Number:
      10.1016/j.jhazmat.2023.131881
    • Accession Number:
      37379603