Please use this identifier to cite or link to this item: http://dspace.unimap.edu.my:80/xmlui/handle/123456789/19579
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dc.contributor.authorLiaw, Lee Teng-
dc.date.accessioned2012-06-02T01:59:50Z-
dc.date.available2012-06-02T01:59:50Z-
dc.date.issued2010-05-
dc.identifier.urihttp://dspace.unimap.edu.my/123456789/19579-
dc.descriptionAccess is limited to UniMAP community.en_US
dc.description.abstractThe adsorption of reactive green 19 (RG19) on chitosan beads was studied in batch system. Various experimental parameters were studied, including initial dye concentration (50 - 500 mg/L), contact time, pH of solution (2 - 13) and temperature (25 - 50 °C). The experimental data were analyzed using Langmuir and Freundlich isotherm model. The result showed a better fit to the Langmuir isotherm model, claiming a homogeneous surface of chitosan beads produced. Pseudo-first-order, pseudo-second-order kinetic were used to analyze the kinetic data. It was found that the kinetic data fitted well with the pseudo-second-order kinetic model, which suggest that the adsorption is controlled by the chemisorptions process. Thermodynamic studies were carried out and various thermodynamic parameters, such as Gibbs energy (ΔG°), entalphy change (ΔH°), entrophy change (ΔS°) and activation energy (Ea) were calculated. The results reveal that RG19 has a good affinity towards chitosan beads and the adsorption process was spontaneous and endothermic. Since the low value of Ea and ∆G° indicates that process is more towards physisorption mechanism, it is concluded that the adsorption of RG19 onto chitosan beads are taking the combination route of physical and chemisorptions.en_US
dc.language.isoenen_US
dc.publisherUniversiti Malaysia Perlis (UniMAP)en_US
dc.subjectReactive green 19 (RG19)en_US
dc.subjectChitosan beadsen_US
dc.subjectShrimp shellen_US
dc.subjectWastewater pollutionsen_US
dc.subjectTextile industryen_US
dc.titleRemoval of reactive green 19 dye using chitosan beadsen_US
dc.typeLearning Objecten_US
dc.contributor.advisorMasitah Hasanen_US
dc.publisher.departmentSchool of Environmental Engineeringen_US
Appears in Collections:School of Environmental Engineering (FYP)

Files in This Item:
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Abstract, Acknowledgement.pdf370.18 kBAdobe PDFView/Open
Conclusion.pdf212.81 kBAdobe PDFView/Open
Introduction.pdf159.54 kBAdobe PDFView/Open
Literature review.pdf566.06 kBAdobe PDFView/Open
Methodology.pdf429.36 kBAdobe PDFView/Open
Reference and appendix.pdf577.99 kBAdobe PDFView/Open
Results and discussion.pdf713.46 kBAdobe PDFView/Open


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