Please use this identifier to cite or link to this item:
http://dspace.unimap.edu.my:80/xmlui/handle/123456789/59547
Title: | Performance of zinc removal by durian shell |
Authors: | Mohamad Firdaus, Mohamad Saaud Syazwani Mahmad Puzi |
Keywords: | Durian shell Adsorbent Aqueous solution Heavy metal |
Issue Date: | Jun-2017 |
Publisher: | Universiti Malaysia Perlis (UniMAP) |
Abstract: | The durian shell is introduced as a new adsorbent for the removal of heavy metal from the aqueous solution. Various parameters, including pH (2-8), initial solution concentration (10-80 mg L-1), temperature (20-80 °C) and adsorbent dosage (0.01-0.08 g), were used to study the effects on durian shells biosorption. The results showed that the adsorption process took place well in alkaline condition with optimum pH 8. The adsorption rate decreased when the temperature increased. The adsorption is favoured with increase in adsorbent dosage and initial dye concentration. However the percentage of removal decreased once the amount of dosage reaches more than 0.6 g. The equilibrium data fitted better in Langmuir model, although it also can fit into Freundlich model demonstrating that the adsorption occurs at heterogeneous sites and multilayer biosorption. The maximum monolayer biosorption capacity was 78.71076 mg/g with the degree of adsorption 27.33 mg/g. The adsorption process followed the pseudosecond order kinetic model showing chemisorption was involved during adsorption process. |
Description: | Access is limited to UniMAP community. |
URI: | http://dspace.unimap.edu.my:80/xmlui/handle/123456789/59547 |
Appears in Collections: | School of Bioprocess Engineering (FYP) |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Abstract,Acknowledgement.pdf | 147.69 kB | Adobe PDF | View/Open | |
Introduction.pdf | 108.1 kB | Adobe PDF | View/Open | |
Literature Review.pdf | 195.42 kB | Adobe PDF | View/Open | |
Methodology.pdf | 163.09 kB | Adobe PDF | View/Open | |
Results and Discussion.pdf | 557.13 kB | Adobe PDF | View/Open | |
Conclusion.pdf | 105.13 kB | Adobe PDF | View/Open | |
References and appendix.pdf | 253.67 kB | Adobe PDF | View/Open |
Items in UniMAP Library Digital Repository are protected by copyright, with all rights reserved, unless otherwise indicated.