Results 181 to 190 of about 41,678 (206)

The mechanism of cobalt biosorption

Biotechnology and Bioengineering, 1989
AbstractNonliving biomass of the common seaweed Ascophyllum nodosum is capable of accumulating cobalt from aqueous solutions to the extent of 160 mg Co2+/g. Successful desorption of cobalt from the biomass by acidic CaCl2 solutions revealed that the metal uptake phenomenon is reversible, implying physical sorption of cobalt.
N, Kuyucak, B, Volesky
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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
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Biosorption: Mechanistic Aspects

2010
The complex structure of plant materials and microorganisms implies that there are many ways for the metal to be taken by the biosorbent. Numerous chemical groups have been suggested to contribute to biosorption metal binding by either whole organisms or molecules.
Shalini Srivastava, Pritee Goyal
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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
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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
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Algal Biosorption and Biosorbents

2011
Algae belong to the kingdom Protista which contains all the Eucaryotes organisms that cannot be classified within other eucaryotic kingdoms: Fungi, Animalia or Plantae. They are autotrophic organisms that carry out an oxygenic photosynthesis. Maybe the most well-known use of algae since ancient times is in food, especially in the Asian coast.
Felisa González, Esther Romera, Antonio Ballester, María Luisa Blázquez, Jesús Ángel Muñoz, Camino García-Balboa   +5 more
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Bacterial Biosorption and Biosorbents

2011
Water pollution due to presence of metals has become one of the most serious environmental problems today. Biosorption, using inactive/dead biomaterials such as bacteria, fungi, algae and industrial/agricultural wastes, is regarded as cost-effective technology for the treatment of metal-bearing wastewaters.
Yeoung-Sang Yun, Kuppusamy Vijayaraghavan, Sung Wook Won   +2 more
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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
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Modeling of Biosorption Processes

2010
Biosorption entails the use of microbial or plant biomass, usually inactivated, to remove toxic metal ions in aqueous solutions. It is particularly effective in dealing with low concentration, high volume metal waste streams. Although biosorption processes have not yet been commercialized to any significant extent, they offer a promising area for ...
Khim Hoong Chu, Yung-Tse Hung
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Potential of Biosorption Technology

2011
Heavy metal removal from inorganic effluent can be achieved by conventional treatment such as chemical precipitation, ion exchane or flotation, however each treatment has its limitation. Recently, sorption, namely biosorption has become one of the alternative treatments. Basically, sorption is a mass transfer process by which a substance is transferred
Tomas Macek, Martina Mackova
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