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Sorption of samarium in iron (II) and (III) phosphates in aqueous systems; Sorcion de samario en fosfatos de hierro (II) y (III) en sistemas acuosos

Abstract

The radioactive residues that are stored in the radioactive confinements its need to stay isolated of the environment while the radioactivity levels be noxious. An important mechanism by which the radioactive residues can to reach the environment, it is the migration of these through the underground water. That it makes necessary the investigation of reactive materials that interacting with those radionuclides and that its are able to remove them from the watery resources. The synthesis and characterization of materials that can be useful in Environmental Chemistry are very important because its characteristics are exposed and its behavior in chemical phenomena as the sorption watery medium is necessary to use it in the environmental protection. In this work it was carried out the sorption study of the samarium III ion in the iron (II) and (III) phosphate; obtaining the sorption isotherms in function of pH, of the phosphate mass and of the concentration of the samarium ion using UV-visible spectroscopy to determine the removal percentage. The developed experiments show that as much the ferrous phosphate as the ferric phosphate present a great affinity by the samarium III, for what it use like reactive material in contention walls can be very viable  More>>
Authors:
Publication Date:
Jul 01, 2006
Product Type:
Thesis/Dissertation
Report Number:
INIS-MX-2245
Resource Relation:
Other Information: TH: Thesis (M. in Env.Sci.)
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; AQUEOUS SOLUTIONS; CALIBRATION; DIAGRAMS; EXPERIMENTAL DATA; HYDRATION; IMAGES; IRON PHOSPHATES; ISOTHERMS; KINETICS; MORPHOLOGY; PH VALUE; PHOSPHATE MINERALS; PHYSICAL CHEMISTRY; RADIOACTIVE WASTE STORAGE; RADIOACTIVE WASTES; SAMARIUM; SAMARIUM IONS; SCANNING ELECTRON MICROSCOPY; SORPTION; SYNTHESIS; TITRATION; X-RAY DIFFRACTION; ZIRCONIUM SILICATES
OSTI ID:
20899203
Research Organizations:
UAEM, Facultad de Quimica, 50000 Toluca, Estado de Mexico (Mexico)
Country of Origin:
Mexico
Language:
Spanish
Other Identifying Numbers:
TRN: MX0700277061400
Availability:
Available from INIS in electronic form
Submitting Site:
MXN
Size:
78 pages
Announcement Date:
Aug 30, 2007

Citation Formats

Diaz F, J C. Sorption of samarium in iron (II) and (III) phosphates in aqueous systems; Sorcion de samario en fosfatos de hierro (II) y (III) en sistemas acuosos. Mexico: N. p., 2006. Web.
Diaz F, J C. Sorption of samarium in iron (II) and (III) phosphates in aqueous systems; Sorcion de samario en fosfatos de hierro (II) y (III) en sistemas acuosos. Mexico.
Diaz F, J C. 2006. "Sorption of samarium in iron (II) and (III) phosphates in aqueous systems; Sorcion de samario en fosfatos de hierro (II) y (III) en sistemas acuosos." Mexico.
@misc{etde_20899203,
title = {Sorption of samarium in iron (II) and (III) phosphates in aqueous systems; Sorcion de samario en fosfatos de hierro (II) y (III) en sistemas acuosos}
author = {Diaz F, J C}
abstractNote = {The radioactive residues that are stored in the radioactive confinements its need to stay isolated of the environment while the radioactivity levels be noxious. An important mechanism by which the radioactive residues can to reach the environment, it is the migration of these through the underground water. That it makes necessary the investigation of reactive materials that interacting with those radionuclides and that its are able to remove them from the watery resources. The synthesis and characterization of materials that can be useful in Environmental Chemistry are very important because its characteristics are exposed and its behavior in chemical phenomena as the sorption watery medium is necessary to use it in the environmental protection. In this work it was carried out the sorption study of the samarium III ion in the iron (II) and (III) phosphate; obtaining the sorption isotherms in function of pH, of the phosphate mass and of the concentration of the samarium ion using UV-visible spectroscopy to determine the removal percentage. The developed experiments show that as much the ferrous phosphate as the ferric phosphate present a great affinity by the samarium III, for what it use like reactive material in contention walls can be very viable because it sorption capacity has overcome 90% to pH values similar to those of the underground and also mentioning that the form to obtain these materials is very economic and simple. (Author)}
place = {Mexico}
year = {2006}
month = {Jul}
}