Collin G. Joseph and Hasnul Fazli Md. Zain and Siti Fatimah Dek (2006) Treatment of landfill leachate in Kayu Madang, Sabah Textural and physical characterization (Part 1). Malaysia Journal of Analytical Sciences, 10 (1). pp. 1-6.
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Abstract
Activated carbons from two agro-industrial wastes; oil palm shells (OPS) and coconut husk (CH); were prepared by chemical activation using potassium hydroxide as the dehydrating agent. A twostage process was used; with semi-carbonization stage at 200o C for 15 minutes as the first stage followed by an activation stage at 500o C for 45 minutes as the second stage. The precursor material with the impregnation agent was exposed straightaway to semi-carbonization and activation temperature unlike the specific temperature progression as reported in the literature. All experiments were conducted in a laboratory scale muffle furnace under static conditions in a self generated atmosphere. We found that by using this method, the OPS prepared with the KOH impregnation ratio of 25% had the highest Iodine Number which was 466.1mg/g but CH with the similar impregnation ratio had the highest Methylene Blue adsorption capacity and percentage of yield, which were 10.9mg/g and 74.68% respectively.
| Item Type: | Article |
|---|---|
| Keyword: | Activated carbons; two-stage activation process, physical and chemical properties |
| Subjects: | Q Science > Q Science (General) Q Science > QD Chemistry S Agriculture > SB Plant culture |
| Department: | FACULTY > Faculty of Science and Natural Resources |
| Depositing User: | SITI AZIZAH BINTI IDRIS - |
| Date Deposited: | 13 Jun 2019 07:43 |
| Last Modified: | 13 Jun 2019 07:43 |
| URI: | https://eprints.ums.edu.my/id/eprint/22219 |
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