Application of radiotracer technique in remediation of Zn(II) from aqueous solutions by dry cowdung powder

The sorption of mercury ions from aqueous solutions on styrene-divinylbenzene copolymer beads (St-DVB) has been investigated for the decontamination of mercury from aqueous media. Various physico-chemical parameters, such as selection of appropriate electrolyte, contact time, amount of adsorbent, concentration of adsorbate, effect of diverse ions and temperature were optimized to simulate the best conditions which can be used to decontaminate mercury from aqueous media using St-DVB beads as an adsorbent. The radiotracer technique was used to determine the distribution of mercury. The highest adsorption was observed at 0.001 mol L

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Study of iodine-iodate isotopic exchange reaction in neutral aqueous solutions by radiotracer technique

Applied Radiation and Isotopes ◽

10.1016/0969-8043(93)90175-a ◽

1993 ◽

Vol 44 (3) ◽

pp. 591-596

Author(s):

R. Tripathi ◽

Kapil D. Ram

Keyword(s):

Aqueous Solutions ◽

Exchange Reaction ◽

Isotopic Exchange ◽

Radiotracer Technique ◽

Isotopic Exchange Reaction

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Zirconium decontamination from aqueous media using lateritic minerals

Radiochimica Acta ◽

10.1524/ract.2005.93.7.427 ◽

2005 ◽

Vol 93 (7) ◽

Cited By ~ 1

Author(s):

Nasir Khalid ◽

Muhammad Daud ◽

Shujaat Ahmad

Keyword(s):

Aqueous Solutions ◽

Aqueous Media ◽

Sorption Behavior ◽

Equilibration Time ◽

Chemical Parameters ◽

Batch Method ◽

Radiotracer Technique ◽

Physico Chemical ◽

Selection Of

AbstractThe sorption behavior of zirconium on minerals from a lateritic weathering has been carried out to evaluate its potential for the decontamination of zirconium ions from aqueous solutions. Various physico-chemical parameters such as selection of appropriate electrolyte, equilibration time, amount of adsorbent, concentration of adsorbate, effect of diverse ions and temperature were studied in order to simulate the best conditions under which this material can be used as an adsorbent, employing batch method and radiotracer technique. Maximum adsorption was observed at 0.005 mol L

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Coprecipitation of gadolinium with calcium sulphate dihydrate

Radiochimica Acta ◽

10.1524/ract.2010.1725 ◽

2010 ◽

Vol 98 (6) ◽

Cited By ~ 5

Author(s):

S. Bouhlassa ◽

F. Selhamen

Keyword(s):

Ionic Strength ◽

Aqueous Solutions ◽

Ambient Temperature ◽

Sulphuric Acid ◽

Elemental Analysis ◽

Calcium Sulphate ◽

X Ray Diffraction ◽

Radiotracer Technique ◽

Elementary Processes ◽

X Ray

AbstractThe present study reports the coprecipitation of gadolinium with calcium sulphate dihydrate, in aqueous solutions of sulphuric acid, at constant ionic strength using a radiotracer technique.The experimental results obtained at ambient temperature, show that the quantity of gadolinium ions coprecipitated in gypsum identified by X-ray diffraction (XRD) and elemental analysis is very small, lower than 4ߙat.ߙ%. The mechanism of coprecipitation of Gd(III) has been discussed, although the elementary processes of the mechanism are not clear.The distribution of gadolinium between precipitate of gypsum and saturated aqueous solutions of H

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Efficient Removal of Ce(III) and Eu(III) Ions from Aqueous Solutions by Local Clay -A Radiotracer Study

E-Journal of Chemistry ◽

10.1155/2011/686592 ◽

2011 ◽

Vol 8 (2) ◽

pp. 917-923

Author(s):

Som Shankar Dubey ◽

Battula Sreenivasa Rao ◽

B. S. A. Andrews ◽

B.Venkata Kiran

Keyword(s):

Aqueous Solutions ◽

Freundlich Isotherm ◽

Efficient Removal ◽

Local Clay ◽

Radiotracer Technique ◽

Adsorption Phenomenon ◽

First Order ◽

Rate Kinetics ◽

Kinetics Of ◽

Adsorptive Concentration

Radiotracer technique has been used to study the removal behavior of Ce(III) and Eu(III) ions from aqueous solutions by local clay. Adsorptive concentration (10-4–10-6mol dm-3), pH (ca2.0-9.0) and temperature (303-333 K) were examined for assessing optimal conditions for removal of these ions. The adsorption phenomenon was highly dependent on the amount of the adsorbent concentrations. The uptake of ions, which fitted well for Freundlich isotherm, increased with increase in the temperature and no significant desorption took place in the studied temperature range. The energy of adsorption process for the both cations indicates that the adsorption phenomenon is of chemisorption type. The rate kinetics of the adsorption followed the first order rate kinetics.

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