Journal ArticleDOI
Biosorption: critical review of scientific rationale, environmental importance and significance for pollution treatment
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TLDR
Biosorption is a physico-chemical process and includes such mechanisms as absorption, adsorption, ion exchange, surface complexation and precipitation as discussed by the authors, which has been heralded as a promising biotechnology for pollutant removal from solution, and/or pollutant recovery.Abstract:
Biosorption may be simply defined as the removal of substances from solution by biological material. Such substances can be organic and inorganic, and in gaseous, soluble or insoluble forms. Biosorption is a physico-chemical process and includes such mechanisms as absorption, adsorption, ion exchange, surface complexation and precipitation. Biosorption is a property of both living and dead organisms (and their components) and has been heralded as a promising biotechnology for pollutant removal from solution, and/or pollutant recovery, for a number of years, because of its efficiency, simplicity, analogous operation to conventional ion exchange technology, and availability of biomass. Most biosorption studies have carried out on microbial systems, chiefly bacteria, microalgae and fungi, and with toxic metals and radionuclides, including actinides like uranium and thorium. However, practically all biological material has an affinity for metal species and a considerable amount of other research exists with macroalgae (seaweeds) as well as plant and animal biomass, waste organic sludges, and many other wastes or derived bio-products. While most biosorption research concerns metals and related substances, including radionuclides, the term is now applied to particulates and all manner of organic substances as well. However, despite continuing dramatic increases in published research on biosorption, there has been little or no exploitation in an industrial context. This article critically reviews aspects of biosorption research regarding the benefits, disadvantages, and future potential of biosorption as an industrial process, the rationale, scope and scientific value of biosorption research, and the significance of biosorption in other waste treatment processes and in the environment. Copyright © 2008 Society of Chemical Industryread more
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Metals, minerals and microbes: geomicrobiology and bioremediation
TL;DR: The ubiquity and importance of microbes in biosphere processes make geomicrobiology one of the most important concepts within microbiology, and one requiring an interdisciplinary approach to define environmental and applied significance and underpin exploitation in biotechnology.
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Efficient techniques for the removal of toxic heavy metals from aquatic environment: A review
TL;DR: In this article, the authors provide a sketch about treatment technologies followed by their heavy metal capture capacity from industrial effluent, the treatment performance, their remediation capacity and probable environmental and health impacts were deliberated in this review article.
Journal ArticleDOI
A New Strategy for Heavy Metal Polluted Environments: A Review of Microbial Biosorbents
TL;DR: The sources of toxic heavy metals are discussed, the groups of microorganisms with biosorbent potential for heavy metal removal are described and the use of microbial biosorbents is eco-friendly and cost effective.
Journal ArticleDOI
Algae as nutritional and functional food sources: revisiting our understanding
Mark L. Wells,Philippe Potin,James S. Craigie,John A. Raven,Sabeeha S. Merchant,Katherine E. Helliwell,Alison G. Smith,Mary Ellen Camire,Susan H. Brawley +8 more
TL;DR: This work highlights this rapidly advancing area of algal science with a particular focus on the key research required to assess better the health benefits of an alga or algal product.
Journal ArticleDOI
Biosorption: current perspectives on concept, definition and application
Marina Fomina,Geoffrey M. Gadd +1 more
TL;DR: Existing knowledge on various aspects of the fundamentals and applications of biosorption are summarized and the obstacles to commercial success and future perspectives are critically reviewed.
References
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Journal ArticleDOI
Copper adsorption by Rhizopus arrhizus, Cladosporium resinae and Penicillium italicum
Louise de Rome,Geoffrey M. Gadd +1 more
TL;DR: Copper adsorption by Rhizopus arrhizus, Cladosporium resinae and Penicillium italicum was studied using a copper-selective electrode.
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Biosorption of lead(II), chromium(III) and copper(II) by R. opacus: Equilibrium and kinetic studies
TL;DR: In this article, the authors evaluated the fundamental aspects of the biosorption of Pb(II), Cr(III) and Cu(II) metal species using Rhodococcus opacus strain.
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Biosorption of Pb(II) and Ni(II) from aqueous solution by lichen (Cladonia furcata) biomass
TL;DR: In this article, the authors applied the Langmuir, Freundlich and Dubinin-Radushkevich (D-R) isotherm models to describe the biosorption of the metal ions onto C. furcata biomass.
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Metal speciation and pH effect on Pb, Cu, Zn and Cd biosorption onto Sphaerotilus natans: Langmuir-type empirical model.
TL;DR: Experimental results outlined the positive effect of pH increase on pollutant uptake and also the biomass affinity series (Pb > Cu > Zn > Cd) reflecting the hydrolytic properties of metals.
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Different Interactions of Fungi with Toxic Metals
TL;DR: In this paper, the metal phytotoxicity by mychorrizal fungi pointing at land reclamation and at the detoxification of metal/radionuclides-containing industrial effluents was investigated.