Potential use of algae for heavy metal bioremediation, a critical review.

Autor: Zeraatkar AK; Department of Chemistry, Ferdowsi University of Mashhad, Mashhad, 1436-91779, Iran., Ahmadzadeh H; Department of Chemistry, Ferdowsi University of Mashhad, Mashhad, 1436-91779, Iran. Electronic address: h.ahmadzadeh@um.ac.ir., Talebi AF; Genetic Department, Faculty of Biotechnology, Semnan University, Semnan, 35131-19111, Iran., Moheimani NR; Algae R&D Centre, School of Veterinary and Life Sciences, Murdoch University, Australia., McHenry MP; School of Engineering and Information Technology, Murdoch University, Australia.
Jazyk: angličtina
Zdroj: Journal of environmental management [J Environ Manage] 2016 Oct 01; Vol. 181, pp. 817-831. Date of Electronic Publication: 2016 Jul 05.
DOI: 10.1016/j.jenvman.2016.06.059
Abstrakt: Algae have several industrial applications that can lower the cost of biofuel co-production. Among these co-production applications, environmental and wastewater bioremediation are increasingly important. Heavy metal pollution and its implications for public health and the environment have led to increased interest in developing environmental biotechnology approaches. We review the potential for algal biosorption and/or neutralization of the toxic effects of heavy metal ions, primarily focusing on their cellular structure, pretreatment, modification, as well as potential application of genetic engineering in biosorption performance. We evaluate pretreatment, immobilization, and factors affecting biosorption capacity, such as initial metal ion concentration, biomass concentration, initial pH, time, temperature, and interference of multi metal ions and introduce molecular tools to develop engineered algal strains with higher biosorption capacity and selectivity. We conclude that consideration of these parameters can lead to the development of low-cost micro and macroalgae cultivation with high bioremediation potential.
(Copyright © 2016 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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