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Valorization of Agroindustrial Wastes as Biosorbent for the Removal of Textile Dyes from Aqueous Solutions
Joint Authors
Palma, Carolyn
Contreras, Elsa
Sepúlveda, Luisa
Source
International Journal of Chemical Engineering
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-05-08
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Engineering Sciences and Information Technology
Abstract EN
The goal is to determinate the technical feasibility of using agroindustrial wastes for adsorption of dyes.
The pHpzc of Brewer’s spent grains and Orange peel is 5.3 and 3.5, respectively.
The equilibrium isotherms of Basic Blue 41, Reactiive Black 5, and Acid Black 1 were carried out without pHs control which ranging between 4 and 5.5.
The equilibrium concentrations for both adsorbents were fitted by the Freundlich and Langmuir models.
The maximum adsorption capacity measured for Basic Blue 41, Reactive Black 5, and Acid Black 1 was 32.4, 22.3, and 19.8 mg g-1 for Brewer’s spent grains; and 157, 62.6, and 45.5 for orange peel, respectively.
The kinetic of process was fitted by the model of pseudo-second order.
The constant rate for orange peel decreased to extend the initial concentration of dye increased, obtaining 4.08 * 10−3−0.6 * 10−3 (Basic Blue 41), 2.98 * 10−3−0.36 * 10−3 (Acid Black 1), and 3.40 * 10−3−0.46 * 10−3 g mg−1 min−1 (Reactive Black 5).
The best removal efficiency was obtained in orange peel with values started from 63% to 20%.
Consequently, according the results obtained there are two positive effects, the reuse of agricultural wastes and its use as low-cost adsorbent of the dyes.
American Psychological Association (APA)
Contreras, Elsa& Sepúlveda, Luisa& Palma, Carolyn. 2012. Valorization of Agroindustrial Wastes as Biosorbent for the Removal of Textile Dyes from Aqueous Solutions. International Journal of Chemical Engineering،Vol. 2012, no. 2012, pp.1-9.
https://search.emarefa.net/detail/BIM-489870
Modern Language Association (MLA)
Contreras, Elsa…[et al.]. Valorization of Agroindustrial Wastes as Biosorbent for the Removal of Textile Dyes from Aqueous Solutions. International Journal of Chemical Engineering No. 2012 (2012), pp.1-9.
https://search.emarefa.net/detail/BIM-489870
American Medical Association (AMA)
Contreras, Elsa& Sepúlveda, Luisa& Palma, Carolyn. Valorization of Agroindustrial Wastes as Biosorbent for the Removal of Textile Dyes from Aqueous Solutions. International Journal of Chemical Engineering. 2012. Vol. 2012, no. 2012, pp.1-9.
https://search.emarefa.net/detail/BIM-489870
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-489870