biosorption

biosorption

(1) The removal of metal ions or organic compounds from a solution by microorganisms. The goal of biosorption is the removal of heavy metals from industrial waste water, purification of precious metals such as gold or silver, or removal of soil contaminants.
(2) A physicochemical process in which biomass passively binds environmental toxins.
References in periodicals archive ?
To remove heavy metal ions from various environments, the techniques such as precipitation, adsorption, ion exchange, reverse osmosis, electrochemical treatments, hyperfiltration, membrane separation, evaporation, coagulation, flotation, oxidation, and biosorption processes are widely used [11-16].
The experimental data were also analyzed using the Dubinin-Radushkevich (D-R) isotherm model to determine the nature of biosorption processes as physical or chemical (Baig et al.
He discusses assessing the effluent quality, the biosorption of Cu(II) onto agricultural materials from tropical regions, cyclic sorption and desorption of Cu(II) onto coconut shell and iron oxide coated sand, modeling the kinetics of Cu(II) bisorption onto coconut shell and Morina oleifera seeds from tropical regions, removing Cu(II) by biosorption onto coconut shell in fixed-bed column systems, and treating gold mining effluence in pilot fixed bed sorption systems.
Biosorption of uranium (VI) and thorium (IV) onto Ulva gigantean (Kutzing) bliding: discussion of adsorption isotherms, kinetics and thermodynamic, J Radioanal Nucl Chem, 288: 867-874.
More significantly, biosorption was studied as a property of certain types of biomass to adsorb cations and anions, like heavy metal ion, from even very dilute aqueous solutions.
Biosorption and bioaccumulation of heavy metals by rock oyster Saccostrea cucullata in the Persian Gulf.
However, the most effective and economical technique for heavy metal removal, even at low concentration, is biosorption.
It combines aerobic biosorption and anaerobic treatment to reduce aeration demand and generate enough methane to produce the energy needed to achieve zero net energy.
In addition, since metal biosorption by non-living biomass is a metabolism independent process, it is not ruled by physiological restriction.
Fundamentals and applications of biosorption isotherms, kinetics and thermodynamics.