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Assessment of the biosorption characteristics of lychee ( Litchi chinensis) peel waste for the removal of Acid Blue 25 dye from water
Environmental Science and Technology Division, CBRI, Roorkee, India,Institute of Environmental Technology and Energy Economics, Hamburg University of Technology (TUHH), 21073 Hamburg Harburg, Germany . (ESEG)ORCID iD: 0000-0002-3565-9943
2010 (English)In: Environmental technology, ISSN 0959-3330, E-ISSN 1479-487X, Vol. 31, 97-105 p.Article in journal (Refereed) Published
Abstract [en]

The aim of this study was to examine the adsorption potential of lychee (Litchi chinensis) peel waste for the removal of Acid Blue 25 dye from aqueous solutions. The adsorption was studied as a function of contact time, initial dye concentration and temperature by batch method. Equilibrium sorption isotherms showed that the lychee peel adsorbent possessed a high affinity and sorption capacity for Acid Blue 25, with a monolayer sorption capacity of ca. 200 mg g-1. The equilibrium adsorption data were well described by the Langmuir model. Kinetic studies revealed that the present system of dye adsorption on lychee peel adsorbent could be described more favourably by the pseudo-second-order kinetic model. The thermodynamic parameters, namely free energy (ΔG°), enthalpy (ΔH°) and entropy (ΔS°) changes, were determined for the process. The results of the present study suggest that lychee peel waste can be used beneficially as an adsorbent in treating industrial effluents containing dyes.

Place, publisher, year, edition, pages
2010. Vol. 31, 97-105 p.
National Category
Environmental Sciences
Research subject
Natural Science, Environmental Science
Identifiers
URN: urn:nbn:se:lnu:diva-21074DOI: 10.1080/09593330903370000OAI: oai:DiVA.org:lnu-21074DiVA: diva2:543653
Available from: 2012-08-09 Created: 2012-08-09 Last updated: 2017-12-07Bibliographically approved

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Bhatnagar, Amit

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