Journal
SCIENCE OF THE TOTAL ENVIRONMENT
Volume 667, Issue -, Pages 444-454Publisher
ELSEVIER
DOI: 10.1016/j.scitotenv.2019.02.390
Keywords
Environmental pollution; Bioremediation; Microbial biotechnology; Genetically engineered bacteria; Ecological risks
Categories
Funding
- Natural Science Foundation of Jiangsu Province [BK20170459]
- Graduate Research and Innovation Projects of Jiangsu Province [KYLX15-1143]
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Industries are the paramount driving force for the economic and technological development of society. However, the flourishing industrialization and unimpeded growth of current production unit's result in widespread environmental pollution due to increased discharge of wastes loaded with baleful, hazardous, and carcinogenic contaminants. Physicochemical-based remediation means are costly, create a secondary disposal problem and remain inadequate for pollution mitigating because of the continuous emergence of new recalcitrant pollutants. Due to eco-friendly, social acceptance, and lesser health hazards, microbial bioremediation has received considerable global attention for pollution abatement. Moreover, with the recent advancement in biotechnology and microbiology, genetically engineered bacteria with high ability to remove environmental pollutants are widely used in the fields of environmental restoration, resulting in the bioremediation in a more viable and ecofriendly way. This review summarized the advantages of genetically engineered bacteria and their application in the treatment of a wide variety of environmental contaminants such as synthetic dyestuff, heavy metal, petroleum hydrocarbons, polychlorinated biphenyls, phenazines and agricultural chemicals which will include herbicides, pesticides, and fertilizers. Considering the risk of genetic material exchange by using genetically engineered bacteria, the challenges and limitations associated with the application of recombinant bacteria on contaminated sites are also discussed. An integrated microbiological, biological and ecological acquaintance accompanied by field engineering designs are the desired features for effective in situ bioremediation of hazardous waste polluted sites by recombinant bacteria. (C) 2019 Elsevier B.V. All rights reserved.
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