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  • Hoang_Rhizorem_HAZMAT

    Rights statement: This is the author’s version of a work that was accepted for publication in Journal of Hazardous Materials. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Journal of Hazardous Materials, 401, 2021 DOI: 10.1016/j.jhazmat.2020.123282

    Accepted author manuscript, 1.05 MB, PDF document

    Embargo ends: 22/06/21

    Available under license: CC BY-NC-ND: Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License

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Rhizoremediation as a green technology for the remediation of petroleum hydrocarbon-contaminated soils

Research output: Contribution to journalJournal articlepeer-review

Published
  • Son A. Hoang
  • Dane Lamb
  • Balaji Seshadri
  • Binoy Sarkar
  • Girish Choppala
  • M. B. Kirkham
  • Nanthi S. Bolan
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Article number123282
<mark>Journal publication date</mark>5/01/2021
<mark>Journal</mark>Journal of Hazardous Materials
Volume401
Number of pages22
Publication StatusPublished
Early online date22/06/20
<mark>Original language</mark>English

Abstract

Rhizoremediation is increasingly becoming a green and sustainable alternative to physico-chemical methods for remediation of contaminated environments through the utilization of symbiotic relationship between plants and their associated soil microorganisms in the root zone. The overall efficiency can be enhanced by identifying suitable plant-microbe combinations for specific contaminants and supporting the process with the application of appropriate soil amendments. This approach not only involves promoting the existing activity of plants and soil microbes, but also introduces an adequate number of microorganisms with specific catabolic activity. Here, we reviewed recent literature on the main mechanisms and key factors in the rhizoremediation process with a particular focus on soils contaminated with total petroleum hydrocarbon (TPH). We then discuss the potential of different soil amendments to accelerate the remediation efficiency based on biostimulation and bioaugmentation processes. Notwithstanding some successes in well-controlled environments, rhizoremediation of TPH under field conditions is still not widespread and considered less attractive than physico-chemical methods. We catalogued the major pitfalls of this remediation approach at the field scale in TPH-contaminated sites and, provide some applicable situations for the future successful use of in situ rhizoremediation of TPH-contaminated soils.

Bibliographic note

This is the author’s version of a work that was accepted for publication in Journal of Hazardous Materials. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Journal of Hazardous Materials, 401, 2021 DOI: 10.1016/j.jhazmat.2020.123282