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1
Content available remote Zastosowanie jonitów, membran jonowymiennych, sorbentów polimerowych oraz biopolimerów w procesie usuwania barwników kwasowych i reaktywnych z roztworów wodnych
Greluk M.
Przemysł Chemiczny
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2013
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T. 92, nr 4
469-478
2
Content available remote Sorpcja barwników kwasowych i reaktywnych z roztworów wodnych na minerałach
Greluk M.
Przemysł Chemiczny
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2013
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T. 92, nr 5
646-654
3
Content available remote Anionity akrylowe modyfikowane SPADNS jako jonity chelatujące do zagęszczania jonów metali
Greluk M., Hubicki Z.
Przemysł Chemiczny
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2011
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T. 90, nr 1
104-111
4
Content available Sunset Yellow sorption on weak base anion exchanger — kinetic and equilibrium studies
Wawrzkiewicz M., Wołowicz A., Greluk M., Hubicki Z.
Challenges of Modern Technology
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2011
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Vol. 2, no. 2
66--70
EN
The sorption equilibrium and kinetics of Sunset Yellow dye in aqueous solutions on the weak base anion exchange resin — Amberlite FPA51 were examined in this paper. The influences of phase contact time, solution pH, initial dye concentration and temperature were studied by the batch method. The amounts of dye sorbed at equilibrium changed from 9.9 to 48.7 mg/g with the increasing initial concentrations in the range 100–500 mg/L. The experimental data were analyzed by the Langmuir, Freundlich, Temkin and Dubinin-Radushkevich models of adsorption. The maximum monolayer capacity was 130.6 mg/g. The sorption free energy was equal to 14.6 kJ/mol and revealed the nature of the ion exchange mechanism in this system. The kinetic data were modelled using the pseudo-first order, pseudo-second order and intraparticle diffusion equations.
5
Content available Sorption of the acid dyes onto strongly basic anion exchanger: Kinetic and equilibrium studies
Greluk M., Hubicki Z., Wołowicz A.
Challenges of Modern Technology
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2011
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Vol. 2, no. 1
74--78
EN
The strong base acrylic anion exchangers, Amberlite IRA-458, was used as an adsorbent for the investigation of acid dyes (Acid Orange 7, Acid Orange 10 and Acid Red 88) adsorption kinetics and isotherms. The pseudo-fi rst order and pseudo-second order kinetic models were used to analyze the kinetic data and good agreement between the experimental and calculated amounts of dye adsorbed at equilibrium were obtained for the pseudo-second order kinetic models for the entire investigated concentrations domain in the case all three investigated dyes. The adsorption equilibrium data were analyzed by the Langmuir and Freundlich isotherm models with the best fitting being the first one.
6
Content available Equilibrium and kinetic studies of palladium(II) ions sorption onto Dowex resins
Wołowicz A., Hubicki Z., Greluk M.
Challenges of Modern Technology
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2011
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Vol. 2, no. 2
71--75
EN
Palladium(II) sorption was studied in hydrochloric acid solutions with sodium chloride addition onto Dowex MSA-1 and Dowex MSA-2 resins by means of the static method. The dependence between the amount of palladium(II) ions sorbed at time tin a disequilibrium state (qt) as well as the sorption capacities (qe) and phases contact time were obtained. The results were applied in kinetic studies using the pseudo-fi rst (Lagergren equation) and pseudo-second order kinetic equations (linear form of Blanchard equation proposed by Ho, PSO). Moreover, the equilibrium studies were caried out at ambient temperature and fitted to the Langmuir and Freundlich isotherms. The AFM pictures of the surface of anion exchange resins before and after the loading process were also recorded. Both resins exhibit high selectivity towards palladium(II) ions. The sorption capacities are in the range 7–10 mg/g for both resins under discussion in all examined solutions. Th e pseudo-second order kinetic equation and the Langmuir isotherm show the best fit with the experimental data.
7
Content available Comparison of Varion resins selectivity towards palladium(II) ions in hydrochloric acid solutions with sodium chloride addition
Wołowicz A., Hubicki Z., Greluk M., Wawrzkiewicz M.
Challenges of Modern Technology
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2011
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Vol. 2, no. 3
34--37
EN
Ion exchange is Ion exchange is found more and more signifi cant importance in metal processing, and hydrometallurgy in general, not only for the removal of impurities but also for the reconcentration process of metal ions. The ion exchange method (dynamic method) was applied in the preconcentration of palladium(II) ions from the chloride solutions with sodium chloride addition. Varion resins such as the strongly basic anion exchange resins: Varion ADM and Varion ATM and the weakly basic anion exchange resin Varion ADAM were taken into account during the sorption process. The selectivity series were obtained based on the breakthrough curves of palladium(II) ions determined by means of dynamic method. Moreover, the distribution coefficients: weight and bed as well as the working anion exchange capacities were calculated. From the Varion resins — Varion ADAM is the most promising in the preconcentration of Pd(II).
8
Content available Application of weakly basic anion exchanger for removal of Remazol Black B
Greluk M., Hubicki Z., Wawrzkiewicz M., Wołowicz A.
Challenges of Modern Technology
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2011
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Vol. 2, no. 3
29--33
EN
The weakly basic anion exchangers of the functional tertiary amine gropus with the polystyrene skeleton: Amberlyst A-21 and with acrylic skeleton: Amberlite IRA-67 were investigated as adsorbents of Remazol Black B from aqueous solutions. Experiments were carried out as function of contact time (1–240 min.), initial dye concentration (50–500 mg/dm3), pH (1–12), temperature (298–318 K) and ionic strength (NaCl). The results indicate that the investigated anion exhchangers are suitab;e as adsorbent material of Remazol Black B from aqueous solutions
9
Content available remote Zastosowanie jonitów chelatujących otrzymanych w wyniku modyfikacji makroporowatych anionitów mocno zasadowych za pomocą SPADNS w procesie wydzielania jonów Cu(II), Ni(II) i Co(II)
Greluk M., Hubicki Z.
Przemysł Chemiczny
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2010
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T. 89, nr 3
232-236
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