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Selenium (Se) recovery for technological applications from environmental matrices based on biotic and abiotic mechanisms

Wang, Zhongli; Wang, Yanming; Gomes, Rachel L.; Gomes, Helena I.

Selenium (Se) recovery for technological applications from environmental matrices based on biotic and abiotic mechanisms Thumbnail


Authors

Zhongli Wang

RACHEL GOMES rachel.gomes@nottingham.ac.uk
Professor of Water & Resource Processing



Abstract

Selenium (Se) is an essential element with application in manufacturing from food to medical industries. Water contamination by Se is of concern due to anthropogenic activities. Recently, Se remediation has received increasing attention. Hence, different types of remediation techniques are listed in this work, and their potential for Se recovery is evaluated. Sorption, co-precipitation, coagulation and precipitation are effective for low-cost Se removal. In photocatalytic, zero-valent iron and electrochemical systems, the above mechanisms occur with reduction as an immobilization and detoxification process. In combination with magnetic separation, the above techniques are promising for Se recovery. Biological Se oxyanions reduction has been widely recognized as a cost-effective method for Se remediation, simultaneously generating biosynthetic Se nanoparticles (BioSeNPs). Increasing the extracellular production of BioSeNPs and controlling their morphology will benefit its recovery. However, the mechanism of the microbial production of BioSeNPs is not well understood. Se containing products from both microbial reduction and abiotic methods need to be refined to obtain pure Se. Eco-friendly and cost-effective Se refinery methods need to be developed. Overall, this review offers insight into the necessity of shifting attention from Se remediation to Se recovery.

Citation

Wang, Z., Wang, Y., Gomes, R. L., & Gomes, H. I. (2022). Selenium (Se) recovery for technological applications from environmental matrices based on biotic and abiotic mechanisms. Journal of Hazardous Materials, 427, Article 128122. https://doi.org/10.1016/j.jhazmat.2021.128122

Journal Article Type Article
Acceptance Date Dec 20, 2021
Online Publication Date Dec 23, 2021
Publication Date Apr 5, 2022
Deposit Date Jan 4, 2022
Publicly Available Date Mar 29, 2024
Journal Journal of Hazardous Materials
Print ISSN 0304-3894
Electronic ISSN 1873-3336
Publisher Elsevier BV
Peer Reviewed Peer Reviewed
Volume 427
Article Number 128122
DOI https://doi.org/10.1016/j.jhazmat.2021.128122
Keywords Health, Toxicology and Mutagenesis; Pollution; Waste Management and Disposal; Environmental Chemistry; Environmental Engineering
Public URL https://nottingham-repository.worktribe.com/output/7162833
Publisher URL https://www.sciencedirect.com/science/article/pii/S0304389421030922
Additional Information This article is maintained by: Elsevier; Article Title: Selenium (Se) recovery for technological applications from environmental matrices based on biotic and abiotic mechanisms; Journal Title: Journal of Hazardous Materials; CrossRef DOI link to publisher maintained version: https://doi.org/10.1016/j.jhazmat.2021.128122; Content Type: article; Copyright: © 2021 Elsevier B.V. All rights reserved.

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