Induction of Microbial Oxidative Stress as a New Strategy to Enhance the Enzymatic Degradation of Organic Micropollutants in Synthetic Wastewater.

Show simple item record Bains, Amrita Perez-Garcia, Octavio Lear, Gavin Greenwood, David Swift, Simon Middleditch, Martin Kolodziej, Edward P Singhal, Naresh
dc.coverage.spatial United States 2022-05-25T03:11:12Z 2022-05-25T03:11:12Z 2019-08-07
dc.identifier.citation (2019). Environmental Science and Technology, 53(16), 9553-9563.
dc.identifier.issn 0013-936X
dc.description.abstract Organic micropollutants (OMPs) are pervasive anthropogenic contaminants of receiving waters where they can induce various adverse effects to aquatic life. Their ubiquitous environmental occurrence is primarily attributed to discharge from wastewater treatment plants due to incomplete removal by common biological wastewater treatment processes. Here, we assess a new strategy for promoting the degradation of six representative OMPs (i.e., sulfamethoxazole, carbamazepine, tylosin, atrazine, naproxen, and ibuprofen) by intentionally stimulating the production of microbial oxidoreductases to counter oxidative stress caused by oxygen perturbations. Mixed microbial cultures from a dairy farm wastewater were subjected to cyclic perturbations of dissolved oxygen (DO). A distance-based redundancy analysis was used to show that DO perturbations correlate with the abundance of <i>Pseudomonadaceae</i> and <i>Rhodocyclaceae</i> families, activities of peroxidases and cytochromes, and the degradation of OMPs. DO perturbation of 0.25 and 0.5 cycles/h led to most abundance of <i>Pseudomonadaceae</i> and <i>Rhodocyclaceae</i> families, showed higher activity of peroxidase and cytochrome, and gave largest removal of OMPs (removal of 92 ± 3% for sulfamethoxazole, 84 ± 3% for naproxen, 82 ± 3% for ibuprofen, 66 ± 2% for carbamazepine, 57 ± 15% for tylosin, and 88 ± 1% for atrazine).
dc.format.medium Print-Electronic
dc.language eng
dc.publisher American Chemical Society (ACS)
dc.relation.ispartofseries Environmental science & technology
dc.rights Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Previously published items are made available in accordance with the copyright policy of the publisher.
dc.subject Sulfamethoxazole
dc.subject Water Pollutants, Chemical
dc.subject Waste Disposal, Fluid
dc.subject Oxidative Stress
dc.subject Waste Water
dc.subject Science & Technology
dc.subject Technology
dc.subject Life Sciences & Biomedicine
dc.subject Engineering, Environmental
dc.subject Environmental Sciences
dc.subject Engineering
dc.subject Environmental Sciences & Ecology
dc.subject REMOVAL
dc.subject ENZYMES
dc.subject LACCASE
dc.subject SYSTEM
dc.subject DIVERSITY
dc.subject EVOLUTION
dc.subject 0605 Microbiology
dc.subject 0907 Environmental Engineering
dc.title Induction of Microbial Oxidative Stress as a New Strategy to Enhance the Enzymatic Degradation of Organic Micropollutants in Synthetic Wastewater.
dc.type Journal Article
dc.identifier.doi 10.1021/acs.est.9b02219
pubs.issue 16
pubs.begin-page 9553
pubs.volume 53 2022-04-11T22:10:37Z
dc.rights.holder Copyright: The author en
dc.identifier.pmid 31356060 (pubmed)
pubs.end-page 9563
pubs.publication-status Published
dc.rights.accessrights en
pubs.subtype Journal Article
pubs.elements-id 779283 Engineering Medical and Health Sciences Science Biological Sciences Medical Sciences Molecular Medicine Civil and Environmental Eng
dc.identifier.eissn 1520-5851
pubs.record-created-at-source-date 2022-04-12 2019-07-29

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