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Treatment of Landfill Leachate in Kayu Madang, Sabah: Textural and Physical Characterization (Part 1)

Joseph, Collin G. and Hasnul Fazli Md. Zain, and Siti Fatimah Dek, (2006) Treatment of Landfill Leachate in Kayu Madang, Sabah: Textural and Physical Characterization (Part 1). Malaysian Journal of Analytical Sciences, 10 (1). pp. 1-6. ISSN 13942506

Full text not available from this repository.

Official URL: http://pkukmweb.ukm.my/~mjas/v10_n1/01_collin.pdf

Affiliations

Universiti Malaysia Sabah, School of Science & Technology, Industrial Chemistry Program

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 two-stage process was used; with semi-carbonization stage at 200oC for 15 minutes as the first stage followed by an activation stage at 500oC 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.

Karbon teraktif daripada tempurung kelapa sawit dan sabut kelapa disediakan melalui pengaktifan fizikal dan kimia dengan menggunakan KOH. Satu proses dua peringkat telah digunakan; dengan peringkat separa pengkarbonan pada suhu 200oC untuk 15 minit sebagai peringkat pertama diikuti oleh peringkat pengaktifan pada suhu 500oC untuk 45 minit sebagai perinkat kedua. Sampel precursor yang telah diimpregnasikan didedahkan kepada dua peringkat proses itu secara terus dan bukan secara progresif. Semua eksperimen dijalankan dengan menggunakan ‘Muffle Furnace’ pada keadaan pegun. Kami dapati dengan kaedah penyediaan ini, karbon teraktif yang daripada OPS 25% KOH, mempunyai Nombor Iodine terbesar iaitu 466.1mg/g tetapi CH dengan nisbah impregnasi yang sama mempunyai kapasiti penjerapan Metilene Biru dan peratus hasil yang terbesar iaitu 10.9mg/g dan 74.68% masing-masing.

Item Type:Journal
Additional Information:This research was supported by the Centre for Management of Research and Conference, University Malaysia Sabah (Grant No. B-0803-01-ER/U096) and is gratefully acknowledged. The authors would also like to express deepest gratitude to Prof. Dr Maryati Mohamed, Director of the Institute for Tropical Biology and Conservation, UMS, for the use of certain scientific instruments.
Keywords:Activated carbons; two-stage activation process, physical and chemical properties
Subjects:Q Science
ID Code:1064

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27. Collin G. Joseph, Fauziah Hj. Abdul Aziz, Hasnul Fazli Md. Zain, dan Siti Fatimah Dek, 2005, Treatment of Landfill Leachate In Kayu Madang, Sabah: Porosity and Adsorption Studies (Part 2), Asian Chem. Letters, 10(3), (in press).

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