Full-text resources of PSJD and other databases are now available in the new Library of Science.
Visit https://bibliotekanauki.pl
Preferences help
Polish version English version Language
enabled [disable] Abstract
Number of results

Results found: 7

Number of results on page
first rewind previous Page / 1 next fast forward last

Search results

help Sort By:

help Limit search:
first rewind previous Page / 1 next fast forward last
1
Content available remote

Application of novel complexing agent in sorption of heavy metal ions from wastewaters on ion exchangers of various types

100%
Kołodyńska D., Hubicki Z.
|
2009
|
vol. 64
227-245
EN
Ethylenediaminetetraacetic acid (EDTA) and nitrilotriacetic acid (NTA) are very effective chelating agents used in many branches of industry. However, they are characterized by low biodegradability (EDTA) and carcinogenic effect (NTA), additionally they are quite persistent in the environment. The search for a cost effective alternative to these two most frequently used chelating agents has long been an industry target. One of them is N, N-bis(carboxylmethyl)-L-glutamic acid whose tetrasodium salt known as Dissolvine GL-38. The aim of our work was to investigate Dissolvine GL-38 as a potential alternative for EDTA or NTA in effective removal of heavy metal ions from waters and wastewaters. In the presented paper there were used for the sorption of of heavy metal ions two commercially available ion exchangers: Lewatit MonoPlus MP 64 and Purolite S-920. A series of experiments was conducted to optimise the method for the Cu(II), Zn(II), Ni(II) and Cd(II) removal from industrial effluents. It was found that the sorption efficiency of the monodisperse polystyrene anion exchanger as well as the chelating ion exchanger varied depending on metal ions concentration, pH, phase contact time, agitation, temperature and properties of ion exchangers.
2
Content available remote

Application of the FT-IR/PAS Method in Comparison οf Ga(III) and In(III) Sorption on Lewatit OC-1026 and Amberlite XAD-7 Impregnated D2EHPA

81%
Wroński G., Dębczak A., Hubicki Z.
Acta Physica Polonica A
|
2009
|
vol. 116
|
issue 3
435-437
EN
The paper makes an attempt to create a polymer sorbent competitive for the commercial Lewatit OC-1026. Therefore the commercial Amberlite XAD-7 was impregnated with the D2EHPA acid. After preparation of both exchangers, their sorption properties towards In(III) and Ga(III) ions were studied [1]. It proved that for pH = 2.17 Amberlite XAD-7 impregnated with D2EHPA acid is characterized by larger sorption capacities than those of commercial Lewatit OC-1026 towards both Ga(III) and In(III) ions. Lewatit OC-1026 as well as the prepared impregnant (XAD-7 + D2EHPA) were examined by means of Raman spectroscopic, FT-IR photoacoustic spectroscopy and FT-IR methods.
3
Content available remote

Investigations of Chromium(III) and (VI) Ions Sorption οn SIR by using Photoacoustic and DRS Methods

81%
Wojcik G., Hubicki Z., Ryczkowski J.
Acta Physica Polonica A
|
2009
|
vol. 116
|
issue 3
432-434
EN
Chromium is a major pollutant for the environment, usually as a result of some industrial pollution. Chromium is used in various industries such as metallurgical (steel, ferrous and nonferrous alloys), refractories (chrome and chrome-magnesite), and chemical (pigments, electroplating, tanning). For this reason, significant amounts of chromium pass into the environment and cause adverse ecological effects. In the present paper the investigations of solvent impregnated resin preparation was conducted. Photoacoustic and diffuse reflectance spectra were recorded for the prepared solvent impregnated resin. Photoacoustic spectra in the infrared area allow distinguishing the differences between the sorbent applied before and after the impregnation process. Impregnation of resin is a result of physical sorption of Aliquat 336 on macroporous Amberlite XAD 16.
4
Content available remote

Application of the FT-IR/PAS and DRS Methods for Studying Heavy Metal Ions Sorption οn the Inorganic Sorbents

81%
Rusek P., Hubicki Z., Wójcik G., Debczak A.
Acta Physica Polonica A
|
2009
|
vol. 116
|
issue 3
407-409
EN
The scope of this study was the removal of heavy metal ions, ammonium and organic substances by ion exchange from municipal wastewaters. Clinoptilolite, bentonite, and palygorskite are especially interesting in the group of inorganic sorbents because of their specific physico-chemical properties. Specific surface areas and pore distributions were determined for the above sorbents. Sorption kinetics of Zn(II), Cu(II), Ni(II), Pb(II) and ammonium ions in synthetic solutions and wastewaters were investigated on the above sorbents. Ion sorption process was carried out with a static method at various phase contact times. The atomic adsorption spectroscopy method was used for measurements of heavy metal contents. The adsorption process was found to be pH and concentration dependent. The removal mechanism of metal ions was by adsorption and ion exchange processes. The FT-IR photoacoustic spectroscopy method was used to study mechanism of Zn(II), Cu(II), Ni(II), Pb(II) and ammonium ions sorption on the clinoptilolite, bentonite and palygorskite. The spectra of FT-IR/PAS before and after sorption of Zn(II), Cu(II), Ni(II), Pb(II) and ammonium ions were investigated.
5
Content available remote

FT-IR/PAS and SEM EDX Studies on Aluminosilicates Modified by Cs(I), Th(IV) and U(VI)

81%
Hubicki Z., Zieba E., Wojcik G., Ryczkowski J.
Acta Physica Polonica A
|
2009
|
vol. 116
|
issue 3
312-314
EN
Clays and zeolites are some of the most important industrial minerals. They have practical applications in geology, agriculture, construction, engineering, process industries, and environment. This article is about one of them: radioactive waste disposal. We are investigating characteristics of bentonite clay and clinoptilolite in case of Cs(I), Th(IV), U(VI) sorption.
6
Content available remote

FT-IR/PAS Studies of Cu(II)-EDTA Complexes Sorption οn the Chelating Ion Exchangers

81%
Kołodyńska D., Hubicki Z., Pasieczna-Patkowska S.
Acta Physica Polonica A
|
2009
|
vol. 116
|
issue 3
340-343
EN
The possibility of removal of copper(II) complexes with ethylenediaminetetraacetic acid (EDTA) from waters and wastewaters by the chelating ion exchangers Lewatit TP 214, Lewatit TP 260 and Diaion CR-20 as well as the mechanism of their sorption onto them were investigated. In order to describe the sorption process of Cu(II) ions in the presence of EDTA, the FT-IR/PA spectra of the abovementioned chelating ion exchangers were recorded.
7
Content available remote

Selected aspect in the separation of inorganic and organic species on ion exchangers and sorbents of various types

52%
Hubicki Z., Majdan M., Gęca M., Gładysz-Płaska A., Kołodyńska D., Makarska-Białokoz M., Wawrzkiewicz M., Wołowicz A., Wójcik G.
|
2011
|
vol. 66
129-146
EN
In the paper the example papers from the Department of Inorganic Chemistry are presented. They are connected with the research of sorption and separation of inorganic and organic species on ion exchangers and sorbents of various types are presented. The main subjects include physicochemical studies of metal ions removal on anion exchangers, chelating and modified ion exchangers as well as zeolites, sorption and separation of rare earth elements, recovery of noble metal particularly from chloride solutions by ion exchange or extraction method, application of the anion exchangers of various types in dyes removal from aqueous solutions and wastewaters and chemistry of porphyrins in the aspect of environmental protection.
first rewind previous Page / 1 next fast forward last
JavaScript is turned off in your web browser. Turn it on to take full advantage of this site, then refresh the page.