Autor: Gierycz, P. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Experimental and modelling analysis of the separation of ionic salts solution in nanofiltration process
Autorzy:: Kowalik-Klimczak, A.
Zalewski, M.
Gierycz, P.
Powiązania:: https://bibliotekanauki.pl/articles/115475.pdf
Data publikacji:: 2015
Wydawca:: Fundacja na Rzecz Młodych Naukowców
Tematy:: nanofiltration
Nernst-Planck equation
modelling
salt solution
nanofiltracja
równanie Nernsta-Plancka
modelowanie
roztwór soli
Opis:: This paper presents the possibility of the use of Donnan and Steric Partitioning Pore Model (DSPM) based on the extended Nernst-Planck equation for interpretation of the separation of chromium(III) and chloride ions from concentrated salt solution in nanofiltration process. Results of predictions obtained with the analyzed model showed the significant effect of the pore dielectric constant on separation of chromium(III) and chloride ions from concentrated salt solution on nanofiltration membranes. It was found that the increase of pore dielectric constant caused the decrease of chromium(III) and chloride ions separation. Additionally, the satisfactory agreement between experimental and predicted data was stated. The Donnan and Steric Partitioning Pore Model may be helpful for the monitoring of nanofiltration process applied for different industrial wastewater treatment.
Źródło:: Challenges of Modern Technology; 2015, 6, 2; 24-29
2082-2863
2353-4419
Pojawia się w:: Challenges of Modern Technology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Selective chromium III/VI separation in polymer inclusion membrane system
Autorzy:: Rajewski, J.
Religa, P.
Wojasiński, M.
Gierycz, P.
Powiązania:: https://bibliotekanauki.pl/articles/115544.pdf
Data publikacji:: 2014
Wydawca:: Fundacja na Rzecz Młodych Naukowców
Tematy:: chromium separation
selectivity
D2EHPA
PIM
Opis:: Analyze of chromium(III) transport process from mixtures of Cr(III)/Cr(VI) ions with polymer inclusion membrane (PIM) system have been done. Di(2-ethylhexyl) phosphoric acid (D2EHPA) have been used as a carrier. It was found that the transport efficiency in PIM is dependent on the carrier concentration in the membrane. It was found that there is an optimal range of carrier concentration in the membrane, which ensures rapid and efficient transport. In studied system optimal D2EHPA concentration was in range between 0,9- 1,5 mol/dm3. Membrane worked as selective barrier for Cr(VI) ions. However increase of Cr(VI) concentration above 0,0005 mol/dm3 negatively influenced Cr(III) transport. It was caused by degradation of the polymer inclusion membrane made of cellulose triacetate (CTA) . Strongly oxidizing Cr(VI) ions can damage polymer inclusion membrane with CTA matrix. The chemical attack of strongly oxidant Cr(VI) ions could lead either to hydrolysis of the pendant acetyl group or to oxidation of polymer backbone leading to chain scission. Moreover, oxidation is accelerated at high concentration of Cr(VI) ions. The membrane containing D2EHPA as a carrier can be recommended for selective separation of Cr(III) ions only from diluted Cr(VI)/Cr(III) mixtures. However the polymer inclusion membrane need a change the polymer matrix.
Źródło:: Challenges of Modern Technology; 2014, 5, 1; 15-19
2082-2863
2353-4419
Pojawia się w:: Challenges of Modern Technology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: The effect of anionic surfactant on the surface structure of nanofiltration membranes
Autorzy:: Kowalik-Klimczak, A.
Religa, P.
Gierycz, P.
Bojarska, M.
Powiązania:: https://bibliotekanauki.pl/articles/115574.pdf
Data publikacji:: 2014
Wydawca:: Fundacja na Rzecz Młodych Naukowców
Tematy:: nanofiltration membrane
concentrated salt solution
anionic surfactant
scaling
membrana nanofiltracyjna
stężony roztwór soli
anionowe środki powierzchniowo czynne
skalowanie
Opis:: The effect of anionic surfactant on the surface structure of nanofiltration membranesAbstract: The effect of cleaning bath – sodium dodecyl sulphate solution on the surface structure of the polymer membrane used during nanofiltration of concentrated salt solutions have been presented in this paper. It was found that the use of the cleaning bath with sodium dodecyl sulphate caused a significant reduction in the separation and permeability possibilities of tested membrane.
Źródło:: Challenges of Modern Technology; 2014, 5, 2; 33-38
2082-2863
2353-4419
Pojawia się w:: Challenges of Modern Technology
Dostawca treści:: Biblioteka Nauki

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