Publications (2)0 Total impact
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Article: Characteristics of Durian Shell as Support Media in Biofilter
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ABSTRACT: Malaysia is an agriculture-based country that produces a lot of agricultural by-products every year. There are potential agriculture by-products yet to be investigated, which can be used as biofilter carriers. This study investigates the physical and chemical characteristics of Durian Shell (DS), an agricultural waste, in assessing its potential to be used as a biofilter media for removing toxic vapors. Ultimate analysis was performed using an elemental analyzer. The presence of functional groups in samples was determined by Fourier Transform Infrared (FTIR) spectroscopy. The powdered DS was mixed with calcium hydroxide (Ca(OH)2) in 23:1 ratio (w/w) dry basis for pH adjustment to be within pH 7-8. The sample was then prepared into a pellet (30 mmØ) by hydraulic hand pressure (5 psi). The specific surface area and average pore size were measured based on Brunauer-Emmet-Teller (BET) method and surface morphology was determined by Scanning Electron Microscope (SEM) analyzer. The results showed that DS has a potential alternative to other carriers, especially peat in term of characteristics, which is not available at a low price or in large quantities in Malaysia.Agricultural & Natural Resource Economics eJournal. 05/2010; -
Article: Effect of Activation Temperature and Heating Duration on Physical Characteristics of Activated Carbon Prepared from Agriculture Waste
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ABSTRACT: "This study was conducted to determine the physical characteristics of activated carbon prepared from durian shell in varied heating durations from 10 min to 30 min and activation temperatures of 400°C and 500°C. Durian shells have been characterized in term of ultimate and proximate analysis, chemical composition and thermal behaviour with a view to be used as activated carbon precursor. Durian shell activated carbon was prepared by impregnating 10g of sample in 10% (v/v) concentration of phosphoric acid for 24 h, followed by carbonization at 400°C and 500°C with different heating durations under nitrogen atmosphere. The results showed that various treatment conditions affect the percentage of yield, BET surface area, micropore volume, and average pore diameter. The highest surface area (SBET) 1024 m2/g was obtained at 500°C and 20 min of heating duration with 63% of yield and 0.21 cm3/g micropore volume."
Institutions
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2010
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Putra University, Malaysia
Klang, Selangor, Malaysia
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