Microalgae - A promising tool for heavy metal remediation
- Authors
- Kumar, K. Suresh; Dahms, Hans-Uwe; Won, Eun-Ji; Lee, Jae-Seong; Shin, Kyung-Hoon
- Issue Date
- Mar-2015
- Publisher
- Academic Press
- Keywords
- Microalgae; Heavy metals; Bioremediation; Mechanism
- Citation
- Ecotoxicology and Environmental Safety, v.113, pp.329 - 352
- Indexed
- SCIE
SCOPUS
- Journal Title
- Ecotoxicology and Environmental Safety
- Volume
- 113
- Start Page
- 329
- End Page
- 352
- URI
- https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/18809
- DOI
- 10.1016/j.ecoenv.2014.12.019
- ISSN
- 0147-6513
- Abstract
- Biotechnology of microalgae has gained popularity due to the growing need for novel environmental technologies and the development of innovative mass-production. Inexpensive growth requirements (solar light and CO2), and, the advantage of being utilized simultaneously for multiple technologies (e.g. carbon mitigation, biofuel production, and bioremediation) make microalgae suitable candidates for several ecofriendly technologies. Microalgae have developed an extensive spectrum of mechanisms (extracellular and intracellular) to cope with heavy metal toxicity. Their wide-spread occurrence along with their ability to grow and concentrate heavy metals, ascertains their suitability in practical applications of waste-water bioremediation. Heavy metal uptake by microalgae is affirmed to be superior to the prevalent physicochemical processes employed in the removal of toxic heavy metals. In order to evaluate their potential and to fill in the loopholes, it is essential to carry out a critical assessment of the existing microalgal technologies, and realize the need for development of commercially viable technologies involving strategic multidisciplinary approaches. This review summarizes several areas of heavy metal remediation from a microalgal perspective and provides an overview of various practical avenues of this technology. It particularly details heavy metals and microalgae which have been extensively studied, and provides a schematic representation of the mechanisms of heavy metal remediation in microalgae. (C) 2014 Elsevier Inc. All rights reserved.
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