PREPARATION AND CHARACTERIZATION OF ACTIVATED CARBON FROM TIMBER MILL WASTE AND ITS APPLICATION FOR REMOVAL OF METAL IONS FROM SOLUTIONS

Noor, Ahmad Md. and Mustafa, Djufri and Kusuma, Theresia Sita and Khalil, H.P.S. Abdul (2010) PREPARATION AND CHARACTERIZATION OF ACTIVATED CARBON FROM TIMBER MILL WASTE AND ITS APPLICATION FOR REMOVAL OF METAL IONS FROM SOLUTIONS. Jurnal Kimia Andalas, 7 (1). ISSN 0853-8018

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Abstract

Wood waste of three different species obtained from tirnber mill were pyrolysed at three different temperatures in a furnace of oxygen-free system. Activated carbon was produced using 10% HCI and steam as activating agents. Temperature and time for the pyrolysis of wood and also the wood species determined the production of carbon and activated carbon. Optimurn results for carbon content (19 - 28%) and activated carbon (18 - 27%) were produced at temperatures of 450"C and in 30 minutes. The activating agents used for the process did not affect significantly the production of activated carbon. Optirnum adsorption of Cu*', Cd*2 and Pb*2 solutions at concentration of 200 ppm each on tlre carbon and activated carbon were obtained at pH : 4, 5 and 6 respectively. The sorption capacity was found to be in the order of Pb*LCd*2>Cu*2. Analysis of the sorption data indicated that they were in agreement with the Langmuir and Freundlich equations and showed that there are strong interaction between adsorbent and adsorbate.

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