Journal
WASTE MANAGEMENT
Volume 62, Issue -, Pages 177-187Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.wasman.2017.02.026
Keywords
Biomass materials; Banana pseudo-stem; Activated carbon; Single-step activation; Semi-closed pyrolysis system; Landfill leachate
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Funding
- Solid Waste Management Cluster, Universiti Sains Malaysia (USM) [1001/CKT/870023]
- Ministry of Higher Education (MOHE)
- Universiti Teknologi MARA (UiTM)
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This study determined the optimum conditions for preparation and adsorptive treatment of landfill leachate from banana pseudo-stem based activated carbon. Response surface methodology (RSM) based on Box-Behnken was applied to optimize the combination effect of three important reaction variables, i.e. activation temperature (degrees C), activation time and impregnation ratio (IR). The reaction was performed via a single step activation with ZnCl2 in a closed activation system. A series of 17 individual experiments were conducted and the results showed that the RSM based on BBD is very applicable for adsorptive removal of pollutants from landfill leachate treatment. The optimum conditions obtained by Design of Experiments (DOE) was at 761 degrees C activation temperature, 87 min activation time and 4.5 g/g impregnation ratio with product yield (27%), iodine number (1101 mg/g), color removal (91.2%) and COD removal (83.0%). (C) 2017 Elsevier Ltd. All rights reserved.
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