uranium thorium biosorption

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  • Radionuclide Biosorption by Bacterial Biomass

    biosorption was selected for further study on biosorption of uranium (VI) and thorium (IV). Effect of growth medium, culture age, energy source and metabolic inhibitor on uranium biosorption Metal and radionuclide biosorption by microbes is strongly influenced by the nature, availability and arrangements of various cellular binding ligands ...

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  • Competitive biosorption of thorium and uranium by ...

    Uranium Biosorption Thorium Corynebacterium Glutamicum Langmuir Adsorption Isotherm These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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  • State of the Art for the Biosorption Process—a Review

    In an invention, Volesky et al. (1981) described removal of radioactive heavy metal ions, like uranium and thorium, using genus Rhizopus (, Rhizopus arrhizus) . However, due to the economic importance of precious metal ion gold, several inventions are focused on gold recovery by using biosorption …

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  • Bioremediation of radioactive waste Wikipedia

    Bioremediation of radioactive waste or bioremediation of radionuclides is an application of bioremediation based on the use of biological ... They are also habitual in building materials radionuclides of uranium, thorium and potassium ... in the case of uranium, biosorption may vary within a range between 45 and 615 milligrams per gram of cell ...

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  • Nuclear Waste Bioremediation Robert B. Laughlin

    In yet another study on uranium bioremediation, Kazy et al. describe the study of a Pseudomonas strain capable of intracellularly sequestering uranium and thorium ions (a phenomenon known as biosorption), radioactive species commonly found in waste generated by nuclear energy and nuclear weapon testing. [9] Through transmission electron ...

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  • Biosorption:criticalreviewofscientific rationale ...

    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.

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  • The mechanism of uranium biosorption by Rhizopus arrhizus ...

    Biosorption isotherms have been used for the evaluation of biosorptive uptake capacity of the biomass which was also compared to an activated carbon and the ion exchange resin currently used in uranium production processes. Determined uranium and thorium biosorption isotherms were independent of the initial U or Th solution concentration.

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  • Biosorption of uranium and thorium | Request PDF

    Biosorption of uranium and thorium. ... Determined uranium and thorium biosorption isotherms were independent of the initial U or Th solution concentration. Solution pH affected the exhibited uptake.

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  • Biosorbents for Metal Ions NTUA

    The mechanism of thorium biosorption by the same organism is different (Tsezos and Volesky, 1982a). Thorium is retained primarily by adsorption on the external surface of the mycellial cell wall. Chitin involvement in thorium biosorption is of substantially reduced significance as compared to its role during uranium biosorption.

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  • Microscopic Investigations on the Biosorption of Heavy ...

    Microscopic Investigations on the Biosorption of Heavy Metals by Bacterial Cells: A Review Duraisamy Ramya and A. Joseph Thatheyus ... metabolism independent accumulation of uranium and thorium which may find a potential application in the removal and recovery of …

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  • Biosorption of radioactive thorium by Springer Link ...

    Biosorption of uranium and thorium by Marine micro algae NOPR . Feb 1, 2011 40(1), February 2011, pp 121124. Biosorption of uranium and thorium by Marine micro algae. , C. S. Siva Prasath S. Prakash. Biosorption of uranium in radioactive liquid organic waste by coconut .

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  • Biosorption of thorium from aqueous solution by Ca ...

    3. Biosorption Experiments All thorium solutions were prepared by diluting stock of 1,000 mg/L thorium obtained from dissolving thorium nitrate pentahydrate (Th(NO3)4 ·5H2 O, Merck supplied) in distilled water. Uranium (VI), nickel (II) and copper (II) solutions were also prepared by dissolving their nitrate salts (Merck) in distilled water.

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  • Biosorption of uranium and thorium. [Rhizopus arrhizus ...

    Biosorption isotherms have been used for the evaluation of biosorptive uptake capacity of the biomass which was also compared to an activated carbon and the ion exchange resin currently used in uranium production processes. Determined uranium and thorium biosorption isotherms were independent of the initial U or Th solution concentration.

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  • Biosorption of Uranium and Thorium

    Biosorption isotherms have been used for the evaluation of biosorptive uptake capacity of the biomass which was also compared to an activated carbon and the ion exchange resin currently used in uranium production processes. Determined uranium and thorium biosorption isotherms were inde pendent of the initial U or Th solution concentration.

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  • Uranium (VI) Biosorption on Marine Sponge, Sarcotragus ...

    The biosorption of heavy metals, radionuclides, uranium and thorium for the recovery or removal from aqueous systems using various microorganisms and biological substances has been investigated by several groups of workers.

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  • Biosorption of heavy metals ERNET

    9. T. Sakaguchi and A. Nakajima, Accumulation of heavy metals such as uranium and thorium by microorganisms In : Smith and M. Misra (Editors), Mineral Bioprocessing. The Minerals, Metals and Materials Society (1991) 10. M. Tsezos et aI., The mechanism of uranium biosorption by Rhizopus arrhizus. Biotechnol.

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  • (PDF) Biosorption of Uranium and Thorium. thesis

    Determined uranium and thorium biosorption isotherms were inde pendent . of . the initial U or Th solution concentration. ... The study of biosorption of uranium and thorium is the sub

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  • Journal of Hazardous Materials

    Biosorption experiments Except where otherwise described, for all biosorption experi ments, 50 mg (dry wt.) of lyophilized biomass was contacted with 100 mL of a 100 mg uranium or thorium L−1 solution (as nitrate, UO2(NO3)2·6H2O or Th(NO3)2·5H2O, Merck, Germany).

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  • Uranium and thorium sequestration by a Pseudomonas sp ...

    The overall observations suggest that the high uranium and thorium accumulation by the test bacterium could be due to the result of a combined ionexchange–complexation–microprecipitation mechanism, which is a new report for uranium and thorium biosorption by metabolically inactivated bacterial cells.

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  • BIOSORPTION OF URANIUM ON SARGASSUM BIOMASS

    BIOSORPTION OF URANIUM ON SARGASSUM BIOMASS JINBAI YANG and BOHUMIL VOLESKY* ... radium, thorium and uranium has been known for long time (Edgington et al., 1970), the biosorption ... Uranium biosorption on the protonated Sargassum biomass was accompanied by the release

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  • Biosorption of Uranium and Rare Earth Elements Using ...

    Biosorption of Uranium and Rare Earth Elements Using Biomass of Algae. ... Imaizumi H. Determination of rare earth elements, thorium and uranium in seaweed samples on the coast in Niigata Prefecture by inductively coupled plasma mass spectrometry. Applied Geochemistry. 2008; 23 …

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  • Biosorption of uranium and thorium Tsezos 1981 ...

    Determined uranium and thorium biosorption isotherms were independent of the initial U or Th solution concentration. Solution pH affected the exhibited uptake. In general, lower biosorptive uptake was exhibited at pH 2 than at pH 4. No discernible difference in uptake was observed between pH 4 and pH 5 where the optimum pH for biosorption lies.

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  • Selective biosorption of thorium (IV) from aqueous ...

    Bursali EA, Merdivan M, Yurdakoc M. Preconcentration of uranium(VI) and thorium(IV) from aqueous solutions using low–cost abundantly available sorbent: sorption behaviour of uranium(VI) and thorium(IV) on low–cost abundantly available sorbent.

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  • Removal of thorium(IV) from aqueous solution by ...

    Bhainsa KC, D’Souza SF (2009) Thorium biosorption by Aspergillus fumigatus, a filamentous fungal biomass. ... Zeng K, Liu Z, Adesina AA (2016) Biosorption characteristics of uranium (VI) and thorium (IV) ions from aqueous solution using CaCl 2modified Giant Kelp biomass.

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  • Biosorption of uranium and thorium | Marios Tsezos ...

    The study of biosorption of uranium and thorium is the sub ject of the present work. Uranium and Thorium Recovery The increasing demand for uranium has prompted a search for cheaper and more efficient methods for its recovery.

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  • Biosorption of uranium from aqueous solutions by nonliving ...

    Biosorption of uranium from aqueous solutions by nonliving biomass of marinealgae Cystoseira indica Biosorption of heavy metals can be an effective process for the removal and recovery of heavy metal ions from aqueous solutions.

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  • Kinetic, equilibrium and thermodynamic studies on sorption ...

    Kinetic, equilibrium and thermodynamic studies on sorption of uranium and thorium from aqueous solutions by a selective impregnated resin containing carminic acid. Hossein Zarei. ... Equilibrium and Thermodynamic Studies of the Biosorption of Heay Metals by Ceratonia Siliqua Bark Ahlam M. Farhan1, Nidá M. Salem2, Ahmad L. Ahmad2, Akl M. Awwad3 ...

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  • Chapter 11 Biosorption of Uranium for Environmental ...

    The recoveries of nuclear fuel elements, such as uranium (U) and thorium (Th), ... Biosorption of Uranium for Environmental Applications Using Bacteria Isolated from the Uranium Deposits Takehiko Tsuruta . ... 11 Biosorption of Uranium for Environmental Applications 269

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  • Biosorption of Uranium and Thorium by Biopolymers ...

    Thorium biosorption. Thorium commonly exists along with uranium in nature, and from an environmental point of view the biosorption of thorium is of the interest. In general, thorium appears to be sequestered well by microbial biomass (Tsezos and Volesky 1981; Tobin et al. 1994). Although uranium and thorium are retained primarily by the fungal ...

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  • Sorption of uranium and thorium from sulphuric ... Akadà ...

    Biosorption of uranium and thorium . The biomass of Rhizopus arrhizus at pH 4 exhibited the highest uranium and thorium ... tailings.'* All 12 known isotopes of thorium are radioactive and, together. uranium and thorium leached from uranium mill ... Oxford Journals .

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  • Biosorption of thorium from aqueous solution by Ca ...

    Biosorption of thorium from aqueous solution by Capretreated brown algae Cystoseira indica 291 Korean J. Chem. Eng.(Vol. 31, No. 2) uptake at higher pH, shown in , may be due to the formation of

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  • Biosorption of thorium (IV) by a Pseudomonas biomass ...

    Hu MZC, Norman JM, Faison BD Reeves M (1996) Biosorption of uranium by Pseudomonas aeruginosa strain CSU: characterization and comparison studies. Biotechnol. Bioeng. 51 : 237247.

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  • Uranium bioremediation using microbial for mitigating its ...

    Uranium bioremediation using microbial for mitigating its pollution. ... Radium, Thorium and Cesium. Among these, Uranium is the most frequently and naturally occurring radioactive substance and possesses weak radioactivity properties. ... Tsuruta T. Biosorption of Uranium for Environmental Applications Using Bacteria Isolated from the Uranium ...

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