PHOSPHATE REMOVAL FROM AQUEOUS SOLUTIONS BY CHITIN AND CHITOSAN IN FLAKES

• Authors: Paula Szymczyk , Urszula Filipkowska , Tomasz Jóźwiak , Małgorzata Kuczajowska-Zadrożna
• Languages of publication: EN

Abstracts

EN

The article presents the effectiveness of phosphate adsorption on the flakes of chitin and chitosan. Studies performed determined adsorption capacity of chitin and chitosan, best among the tested adsorption pH and the equilibrium time. Langmuir model was used to describe the results. The highest removal efficiency of phosphorus compounds using chitin was obtained at pH 3 and with chitosan at pH 4. The study of phosphate equilibrium concentration time obtained for both sorbents was carried out at three concentrations of 1, 5 and 10 mg/dm3. The highest sorption efficiency of the phosphate using chitin was achieved after 20 minutes of the process and at the chitosan after 40 minutes. In the case of chitosan after the equilibrium time the effect of partial P-PO4 release was observed, which could be related to the change in pH of the solution by the sorbent. Studies have shown that chitosan is a more effective absorbent for phosphorus compounds. The maximum adsorption capacity of chitosan with phosphate was 6.65 mg/g, and chitin - 2.09 mg/g.

Keywords

EN

adsorption; chitin; chitosan; phosphate

• Publisher: Sieć Badawcza Łukasiewicz - Polskie Towarzystwo Chitynowe
• Journal: Progress on Chemistry and Application of Chitin and its Derivatives
• Year: 2016
• Volume: 21
• Pages: 192-202

Contributors

author

Paula Szymczyk

• Department of Environmental Engineering, University of Warmia and Mazury in Olsztyn Warszawska 117 street, 10 – 719 Olsztyn, Poland

author

Urszula Filipkowska

• Department of Environmental Engineering, University of Warmia and Mazury in Olsztyn Warszawska 117 street, 10 – 719 Olsztyn, Poland

author

Tomasz Jóźwiak

• Department of Environmental Engineering, University of Warmia and Mazury in Olsztyn Warszawska 117 street, 10 – 719 Olsztyn, Poland

author

Małgorzata Kuczajowska-Zadrożna

• Department of Biotechnology in Environmental Protection, University of Warmia and Mazury in Olsztyn Słoneczna 45 G Street, 10–709Olsztyn, Poland

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• Document Type: article