Development of naturally occurring siliceous material for the preferential removal of thorium from U–Th from aquatic environment

Basu, Hirakendu; Singhal, R. K.; Pimple, Mehzabin Vivek; Manisha, V.; Bassan, M.; Reddy, Α. V. R.; Mukherjee, Tulsi

doi:10.1007/s10967-011-1068-0

Cited by 20 publications

(7 citation statements)

References 19 publications

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“…This particle reactive driving force favor thorium due to its single predominant oxidation state (IV) leading to constant ionic potential. Enrichment of Th(IV) in marine sediment having more than 70 % siliceous matter was also reported by Basu et al [17].…”

Section: Optimization Of Ph For the Sorption Of U And Th On Siliceous Msupporting

confidence: 77%

Development of Natural Sorbent for Decontamination of Drinking Water from Low Level of Transuranic and Other Long-lived Radionuclides

RK¹,

Basu²

2014

J Environ Anal Chem

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Three different types of natural sorbents were developed using natural siliceous material, sodium alginate, and impregnation of goethite in alginate matrix. Experiments were carried out for decontamination of uranium, thorium, americium and plutonium by using siliceous material, Calcium-Alginate (Cal-Alg) and Goethite impregnated CalciumAlginate (Geo-Cal-Alg) respectively. These materials were tested for different conditions by varying their pH in the range of 1-8, 95-98% Am-241 and Pu-239+240 sorbed by Cal-Alg and Geo-Cal-Alg beads respectively and experimental sorption capacity as evaluated were Eu 3+ as a natural analogue for Am-241 and Pu-239+240 is 12.16 mg g -1 . Experimental results clearly showed that Th and U sorption capacity is 1 and 0.3 µg mg -1 (w/w) respectively in case of siliceous material. No change in various physicochemical characteristics of the potable water was observed after decontamination process.

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Section: Optimization Of Ph For the Sorption Of U And Th On Siliceous Msupporting

confidence: 77%

Development of Natural Sorbent for Decontamination of Drinking Water from Low Level of Transuranic and Other Long-lived Radionuclides

RK¹,

Basu²

2014

J Environ Anal Chem

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“…A large number of studies have been carried out by using silica microspheres [32][33][34] for removal of various pollutants from aquatic environments including dyes, heavy metals and radionuclides. [35][36][37][38] They are very effective in removal as they have a large surface area, well-defined and adjustable pore structure, and narrow distribution of the pore size. 39,40 These spheres can be obtained by the synthesis of core-shell type particles.…”

Section: Introductionmentioning

confidence: 99%

Highly efficient removal of TiO₂nanoparticles from aquatic bodies by silica microsphere impregnated Ca-alginate

2016

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“…In view of the extensive usage of uranium and thorium for various industrial purposes and their sub trace level releases through liquid effluents which in turn reflects into the various aquatic medium (Gok and Aytas 2009;Basu et al 2011;Singhal et al 2011a, b). As per the recent works carried out in India (Singh et al 1995;Singh et al 2008), many location in the northern part of India (Punjab and Haryana) elevated levels of U was observed in groundwater.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of silica microsphere and their application in removal of uranium and thorium from water

Basu

Singhal

Pimple

et al. 2014

Int. J. Environ. Sci. Technol.

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Uranium (U) and thorium (Th) are known to cause acute toxicological effects in human, and their compounds are potential occupational carcinogens. During this work, silica microspheres were used to decontaminate the traces of U and Th in different water sources originated from groundwater and lake water. Ultra-filtration technique was used to isolate the microsphere from the water samples. Silica microspheres were synthesized based on a polyvinylpyrrolidone involved emulsion polymerization and subsequent sol-gel process. The microspheres were characterized for their size by using dynamic light scattering, and presence of silicate structure is verified by recording their attenuated total reflectance-Fourier transform infrared spectrum. The surface morphologies of the prepared silica microspheres were studied by using scanning electron microscope. Water samples collected from the groundwater and lake water were spiked with U and Th in the concentration range of 100-1,000 ng mL -1 . The results of batch sorption experiments suggest that silica microsphere is very effective at pH 3, and sorption is more than 99.9 %. Equilibrium sorption follows Langmuir isotherms and the maximum U, and Th uptake is 30 and 36 mg g -1 , respectively. Major physicochemical characteristics of the water were monitored before and after the decontamination process. Experimental results show no significant variations in any of the measured parameters.

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Development of naturally occurring siliceous material for the preferential removal of thorium from U–Th from aquatic environment

Cited by 20 publications

References 19 publications

Development of Natural Sorbent for Decontamination of Drinking Water from Low Level of Transuranic and Other Long-lived Radionuclides

Development of Natural Sorbent for Decontamination of Drinking Water from Low Level of Transuranic and Other Long-lived Radionuclides

Highly efficient removal of TiO₂nanoparticles from aquatic bodies by silica microsphere impregnated Ca-alginate

Synthesis and characterization of silica microsphere and their application in removal of uranium and thorium from water

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Development of naturally occurring siliceous material for the preferential removal of thorium from U–Th from aquatic environment

Cited by 20 publications

References 19 publications

Development of Natural Sorbent for Decontamination of Drinking Water from Low Level of Transuranic and Other Long-lived Radionuclides

Development of Natural Sorbent for Decontamination of Drinking Water from Low Level of Transuranic and Other Long-lived Radionuclides

Highly efficient removal of TiO2nanoparticles from aquatic bodies by silica microsphere impregnated Ca-alginate

Synthesis and characterization of silica microsphere and their application in removal of uranium and thorium from water

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Highly efficient removal of TiO₂nanoparticles from aquatic bodies by silica microsphere impregnated Ca-alginate