An overview on heavy metal resistant microorganisms for simultaneous treatment of multiple chemical pollutants at co-contaminated sites, and their multipurpose application

• Published in: Journal of hazardous materials Vol. 396; p. 122682
• Main Author: Rahman, Zeeshanur
• Format: Journal Article
• Language: English
• Published: Netherlands Elsevier B.V 05.09.2020
• Subjects: Biodegradation, Environmental; bioremediation; Chemical pollutants; cost effectiveness; ecological function; Ecosystem; Environmental Pollutants - toxicity; Heavy metal resistant microorganisms; Heavy metals; metal tolerance; Metals, Heavy - analysis; Metals, Heavy - toxicity; microorganisms; Multipurpose microorganisms; pollution; Simultaneous treatment; Soil Pollutants - analysis; Soil Pollutants - toxicity; wastes; Chemical pollutants; Heavy metal resistant microorganisms; Multipurpose microorganisms; Heavy metals; Simultaneous treatment
• ISSN: 0304-3894; 1873-3336; 1873-3336
• DOI: 10.1016/j.jhazmat.2020.122682

[Display omitted] •Co-occurrence of multiple pollutants at contaminated sites is a raised concern.•Heavy metal resistant microbes can be used for the treatment of pollutants.•Simultaneous biotreatment of multiple pollutants using microbes is reviewed.•Multipurpose application of heavy metal resistant microbes is discussed. Anthropogenic imbalance of chemical pollutants in environment raises serious threat to all life forms. Contaminated sites often possess multiple heavy metals and other types of pollutants. Elimination of chemical pollutants at co-contaminated sites is imperative for the safe ecosystem functions, and simultaneous removal approach is an attractive scheme for their remediation. Different conventional techniques have been applied as concomitant treatment solution but fall short at various parameters. In parallel, use of microorganisms offers an innovative, cost effective and ecofriendly approach for simultaneous treatment of various chemical pollutants. However, microbiostasis due to harmful effects of heavy metals or other contaminants is a serious bottleneck facing remediation practices in co-contaminated sites. But certain microorganisms have unique mechanisms to resist heavy metals, and can act on different noxious wastes. Considering this significant, my review provides information on different heavy metal resistant microorganisms for bioremediation of different chemical pollutants, and other assistance. In this favour, the integrated approach of simultaneous treatment of multiple heavy metals and other environmental contaminants using different heavy metal resistant microorganisms is summarized. Further, the discussion also intends toward the use of heavy metal resistant microorganisms associated with industrial and environmental applications, and healthcare. Simultaneous treatment of multiple chemical pollutants using microorganisms is relatively a new approach. Therefore, this subject was not well received for review before. Also, multipurpose application of heavy metal microorganisms has certainly not considered for review. In this regard, this review attempts to gather information on recent progress on studies on different heavy metal resistant microorganisms for their potential of treatment of co-contaminated sites, and multipurpose application.