EFFECT OF pH VALUE AND ADSORBENT CONCENTRATION ON THE EFFECTIVENESS OF ADSORPTION ONTO CHITIN AND CHITOSAN

• Authors: Urszula Filipkowska , Joanna Rodziewicz , Renata Sobotka
• Languages of publication: EN

Abstracts

EN

The study was aimed at determining the effectiveness of reactive dye RB5 removal in the adsorption process onto chitin and chitosan as affected by the quantity of an adsorbent and pH value of the solution. The experiment was conducted at two concentrations of a sorbent, i.e. 1 and 5 mg d.m./dm3 and at three values of the reaction, i.e. pH 3.0, pH 5.0, and pH 9.0. The kinetics of RB5 sorption onto chitin and chitosan was described with the use of Langmuir model. In the case of both adsorbents examined, the highest adsorption capacity was achieved at pH 3.0 and adsorbent concentration of 1 g d.m./dm3. Increasing pH value up to pH 5.0 and 9.0 and adsorbent concentration in the sample from 1 to 5 g d.m./dm3 caused a decrease in the quantity of dye absorbed.

Keywords

EN

chitin; chitosan; reactive dye RB5

• Publisher: Sieć Badawcza Łukasiewicz - Polskie Towarzystwo Chitynowe
• Journal: Progress on Chemistry and Application of Chitin and its Derivatives
• Year: 2010
• Volume: 15
• Pages: 79 - 86

Contributors

author

Urszula Filipkowska

• Department of Environmental Protection Engineering University of Warmia and Mazury in Olsztyn

author

Joanna Rodziewicz

• Department of Environmental Engineering, University of Warmia and Mazury in Olsztyn ul. Warszawska 117, 10–720 Olsztyn, Poland

author

Renata Sobotka

• Department of Environmental Engineering, University of Warmia and Mazury in Olsztyn ul. Warszawska 117, 10–720 Olsztyn, Poland

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• Document Type: article