Results 181 to 190 of about 18,001 (219)

Biosorption with Algae: A Statistical Review

Critical Reviews in Biotechnology, 2006
The state of the art in the field of biosorption using algae as biomass is reviewed. The available data of maximum sorption uptake (qmax) and biomass-metal affinity (b) for Cd2 +, Cu2 +, Ni2 +, Pb2 + and Zn2 + were statistically analyzed using 37 different algae (20 brown algae, 9 red algae and 8 green algae).
E, Romera, F, González, A, Ballester, M L, Blázquez, J A, Muñoz   +4 more
openaire   +2 more sources

Biosorption of Radionuclides by Fungal Biomass

Journal of Chemical Technology & Biotechnology, 1990
AbstractFour kinds of bioreactor were evaluated for thorium removal by fungal biomass. Static‐bed or stirred‐bed bioreactors did not give satisfactory thorium removal probably because of poor mixing. An air‐lift bioreactor removed approximately 90–95% of the thorium supplied over extended time periods and exhibited a well‐defined breakthrough point ...
White, Christopher, Gadd, Geoffrey M.
openaire   +3 more sources

Removal of humic substances by biosorption

Journal of Environmental Sciences, 2008
Fungal pellets of Aspergillus niger 405, Aspergillus ustus 326, and Stachybotrys sp. 1103 were used for the removal of humic substances from aqueous solutions. Batchwise biosorption, carried out at pH 6 and 25 degrees C, was monitored spectrophotometrically and the process described with Freundlich's model.
Vuković Domanovac, Marija, Domanovac, Tomislav, Briški, Felicita   +2 more
openaire   +4 more sources

Biosorption of Rare Earth Elements

Mineral Processing and Extractive Metallurgy Review, 1998
Abstract By using X-ray microanalysis, the mechanism of sorption of rare earth elements (REE) and their localization in cells of Candida utilis were found to depend on the metal ion speciation in solution, the permeability of the cytoplasmic membrane (CPM), and elemental composition of cells.
A.A. Korenevsky, V.V. Sorokin, G.I. Karavaiko   +2 more
openaire   +1 more source

Biosorption: A Mechanistic Approach

2013
The ability of microbial cells to sequester solutes selectively from aquatic solutions, via nonmetabolically mediated pathways, has been termed biosorption. The mechanism of biosorption has been shown not to be simple and often specific to the biomass-solute pair. The understanding of the mechanism at play, in each biosorption system, is a prerequisite
openaire   +2 more sources

Cadmium removal in a biosorption column

Biotechnology and Bioengineering, 1994
AbstractNew biosorbent material derived from a ubiquitous brown marine alga Ascophyllum nodosum has been examined in packed‐bed flow‐through sorption columns. It effectively removed 10 mg/L of cadmium down to 1.5 ppb levels in the effluent, representing 99.985% removal.
B, Volesky, I, Prasetyo
openaire   +2 more sources

Biosorption of nickel using filamentous fungi

Applied Biochemistry and Biotechnology, 1998
Nickel (Ni) uptake capability from aqueous solutions was studied in a filamentous fungi strains group of Rhizopus sp., Penicillium sp. Aspergillus sp., Trichoderma sp., Byschoclamyss sp., and Mucor sp. The metal uptake of a Rhizopus sp. strain, which has the highest uptake capacity, was corroborated by electron microscopy; no Ni deposits were observed ...
L, Mogollón, R, Rodríguez, W, Larrota, N, Ramirez, R, Torres   +4 more
openaire   +2 more sources

Engineering of membrane biosorption

Desalination, 2002
Membrane biosorption is a new integrated process for xenobiotics removal from a water environment. The mathematical model has been presented in the paper based on biosorption equilibrium and kinetics as well as relevant mass balances of the integrated system.
Andrzej Koltuniewicz, Katarzyna Bezak
openaire   +1 more source

The kinetics of radium biosorption

The Chemical Engineering Journal, 1986
Abstract The intrinsic rate of radium adsorptive uptake by two types of waste inactive microbial biomass was examined. The effects of solution initial radium concentration, pH and ionic composition on the observed rate were also investigated. The results show that radicum uptake rates are reasonably rapid, with equilibrium attained after less than 2 ...
M. Tsezos, M.H.I. Baird, L.W. Shemilt
openaire   +1 more source

Mechanisms of Biosorption

Biosorption is the method to remove heavy metals from the ecosystem, and it has replaced the use of other physical and chemical methods that are used for removal of heavy metals. The main cause of heavy metal pollution is industrialization. The industrial waste that contains heavy metal leads to pollution in aquatic life systems.
Rakesh Dutta, Jayashri Dutta
openaire   +1 more source