Search Results - "Mohapatra, P.K."
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A highly efficient solvent system containing TODGA in room temperature ionic liquids for actinide extraction
Published in Separation and purification technology (21-08-2012)“…► Extraction of actinide ions viz. Am3+, Pu4+ and UO22+. ► TODGA in room temperature ionic liquids. ► Ion-exchange mechanism of extraction. ► Significantly…”
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Evaluation of polymer inclusion membranes containing crown ethers for selective cesium separation from nuclear waste solution
Published in Journal of hazardous materials (30-09-2009)“…Transport behaviour of 137Cs from nitric acid feed was investigated using cellulose triacetate plasticized polymer inclusion membrane (PIM) containing several…”
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Extraction of neodymium from nitric acid feed solutions using an emulsion liquid membrane containing TOPO and DNPPA as the carrier extractants
Published in Chemical engineering research & design (01-06-2015)“…•Nd extraction by emulsion liquid membrane was studied.•DNPPA and TOPO mixture was used.•The extraction, demulsification and swelling aspects were studied.•The…”
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Non-dispersive solvent extraction of neodymium using a hollow fiber contactor: Mass transfer and modeling studies
Published in Journal of membrane science (01-11-2013)“…Non-dispersive solvent extraction (NDSX) of Nd(III) from nitric acid feed solutions was carried out for the first time employing a hollow fiber contactor which…”
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Evaluation of two calix-crown-6 ligands for the recovery of radio cesium from nuclear waste solutions: Solvent extraction and liquid membrane studies
Published in Journal of membrane science (15-02-2013)“…Recovery of radio-cesium from high level radioactive waste is one of the major challenges in the back end of fuel cycle. Calix-crown ligands have been found to…”
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Tannase production by Bacillus licheniformis KBR6: Optimization of submerged culture conditions by Taguchi DOE methodology
Published in Food research international (01-05-2009)“…Tannase production by Bacillus licheniformis KBR6 under submerged fermentation was optimized following Taguchi orthogonal array (OA) design of experiment…”
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Comparative dispersion-free solvent extraction of Uranium(VI) and Thorium(IV) by TBP and dialkyl amides using a hollow fiber contactor
Published in Separation and purification technology (08-02-2016)“…•Non-dispersive extraction (NDSX) of U(VI) and Th(IV) was carried out.•Hollow fiber contactor was used for the NDSX studies.•Performance of TBP and DHOA was…”
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Radiation stability of diglycolamide functionalized calix[4]arenes in ionic liquid: Solvent extraction, EPR and GC–MS studies
Published in Separation and purification technology (13-04-2016)“…Ionic liquid-based solvent systems containing diglycolamide-functionalized calix[4]arenes (C4DGAs) are efficient for actinide ion extraction from nitric acid…”
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Variation in effects of four OP insecticides on photosynthetic pigment fluorescence of Chlorella vulgaris Beij
Published in Ecotoxicology and environmental safety (01-06-2012)“…Effects of the insecticides quinalphos, chlorfenvinphos, dimethoate and phorate on photosystem activity of Chlorella vulgaris were investigated by different…”
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Comparative evaluation of polymer inclusion membranes containing several substituted diglycolamides for actinide ion separations
Published in Journal of membrane science (01-03-2016)“…Diglycolamide (DGA) extractants are known to be highly selective for actinide ion extraction from moderate concentrations of nitric acid. Polymer inclusion…”
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Spectacular enhancements in actinide ion uptake using novel extraction chromatography resins containing TODGA and ionic liquid
Published in Separation and purification technology (12-02-2015)“…•Extraction chromatographic resins containing TODGA in a RTIL were made.•The coated resin beads were used for actinide ion extraction from acidic…”
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Solvent system containing CMPO as the extractant in a diluent mixture containing n-dodecane and isodecanol for actinide partitioning runs
Published in Hydrometallurgy (01-08-2014)“…0.2M CMPO in isodecanol(10%)–dodecane system was taken for evaluating the extraction behavior of actinides in different oxidation states. The order of decrease…”
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Mass transport modeling of Cs(I) through hollow fiber supported liquid membrane containing calix-[4]-bis(2,3-naptho)-crown-6 as the mobile carrier
Published in Chemical engineering journal (Lausanne, Switzerland : 1996) (15-10-2011)“…► Cs recovery from radioactive waste is one of the most challenging issues. ► Calix-crown ligands have been found to be highly selective for Cs. ► SLM based…”
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Comparative evaluation of actinide ion uptake by polymer inclusion membranes containing TODGA as the carrier extractant
Published in Journal of hazardous materials (30-06-2014)“…•PIMs containing TODGA were used for actinide ion uptake and transport.•The trend of uptake was: Am3+>Pu4+>Th4+>UO22+.•The transport trend was similar though…”
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Evaluation of a novel tripodal diglycolamide for actinide extraction: Solvent extraction and SLM transport studies
Published in Journal of membrane science (15-06-2011)“…► When DGA moiety was appended on to a tripodal framework, extraction of U(VI) decreased spectacularly while Am(III) and Pu(IV) extraction did not show much…”
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Transport of cesium using hollow fiber supported liquid membrane containing calix[4]arene-bis(2,3-naphtho)crown-6 as the carrier extractant: Part II. Recovery from simulated high level waste and mass transfer modeling
Published in Journal of membrane science (15-11-2011)“…► This paper presents studies on the Cs recovery from simulated high level waste using hollow fiber supported liquid membrane technique. ► Mass transfer…”
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A highly efficient supported liquid membrane system for selective strontium separation leading to radioactive waste remediation
Published in Journal of membrane science (15-02-2012)“…► This is the first report on near quantitative Sr transport from acidic feeds using crown ethers. ► The crown ether based solvent has shown both selectivity…”
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Unusual transport behaviour of actinide ions with a novel calix[4]arene-tetra-diglycolamide (C4DGA) extractant as the carrier
Published in Journal of membrane science (01-09-2012)“…► A novel calix-4DGA extractant is used for actinide ion transport. ► The transport efficiency was Pu4+>Am3+>Pu3+≫UO22+. ► Eu3+ transport rates were…”
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Pertraction of radio-cesium from acidic feeds across supported liquid membranes containing calix-crown-6 ligands in a fluorinated diluent
Published in Journal of membrane science (01-08-2015)“…Supported liquid membranes containing a solution of four calix-crown-6 ligands viz., calix[4]arene-bis-crown-6 (CC), calix[4]arene-benzo-bis-crown-6 (CBC),…”
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A highly efficient supported liquid membrane system for near quantitative recovery of radio-strontium from acidic feeds. Part II: Scale up and mass transfer modeling in hollow fiber configuration
Published in Journal of membrane science (01-07-2012)“…► Sr(II) transport from acidic feeds was studied using DTBCH18C6. ► HFSLM technique was used for scale up at 0.5L scale. ► 94% transport was seen from…”
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