Adsorption Equilibria of l-(+)-Tartaric Acid onto Alumina

The adsorption equilibria of l-(+)-tartaric acid onto alumina from wastewaters of wineries were studied, and it has been found that the equilibrium adsorption fits the Langmuir and Freundlich isotherms. Adsorption experiments were carried out at three different temperatures (298, 310, and 325) K. Th...

Full description

Saved in:
Bibliographic Details
Published in:Journal of chemical and engineering data 2009-07, Vol.54 (7), p.1997-2001
Main Authors: Uslu, Hasan, İnci, İsmail
Format: Article
Language:English
Subjects:
Adsorption
Applied sciences
Chemical engineering
Chemistry
Exact sciences and technology
General and physical chemistry
Solid-liquid interface
Surface physical chemistry
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The adsorption equilibria of l-(+)-tartaric acid onto alumina from wastewaters of wineries were studied, and it has been found that the equilibrium adsorption fits the Langmuir and Freundlich isotherms. Adsorption experiments were carried out at three different temperatures (298, 310, and 325) K. The adsorption of l-(+)-tartaric acid is dependent on the acid concentration and the amount of alumina. The maximum percentage removal of l-(+)-tartaric acid was 22 % by alumina at 298 K. The Langmuir and Freundlich constants have been found to be 0.023 g·g−1 and 0.014 (g·g−1)/(L·g−1)−1/n , respectively, at 298 K. The thermodynamic parameters ΔH ads 0 and ΔS ads 0 for the adsorption of tartaric acid on alumina have been calculated to be −5.62 kJ·mol−1 and 50.65 J·mol−1·K−1, respectively.
ISSN:0021-9568
1520-5134
DOI:10.1021/je800976d