Please use this identifier to cite or link to this item: http://www.repository.rmutt.ac.th/xmlui/handle/123456789/370
Title: Comparison of granular activated carbon bio-sorption and advanced oxidation processes in the treatment of leachate effluent
Authors: Abdul, Javeed Mohammed
Vigneswaran, Saravanamuthu
Shon, Ho Kyong
Nathaporn, Areerachakul
Kandasamy, Jaya
Keywords: Landfill Leachate
Bio-sorption
Advanced Oxidation
Photocatalysis
Issue Date: 2009
Abstract: Landfill leachate is a toxic effluent of a decomposing landfill that is produced when rainwater percolates through the landfill leaching out contaminants and pollutants. Untreated leachate is a potential source for the contamination of soil, surface and ground water. In this study, the treatment processes such as granular activated carbon (GAC) adsorption/bio-sorption (batch), and advanced oxidation processes (AOP) viz. photocatalysis and Fenton's process were evaluated and compared by using synthetic landfill leachate (SLL) as a contaminant. TiO(2) was used as a catalyst in photocatalysis, and Fenton's reagent (H(2)O(2)/Fe(+2)) was used in Fenton's process. The degradation of SLL effluent by the three above-mentioned processes was characterized by the % TOC removal. The % TOC removed by photocatalysis, Fenton oxidation and bio-sorption (which includes adsorption and biodegradation) was 30, 60 and 85%, respectively. The bio-sorption increased with the increasing GAC dose. The optimum dose of Fenton's reagent in advanced oxidation was 15 and 400 milli moles of Fe(+2) and H(2)O(2), respectively. The Fenton's process showed faster degradation kinetics compared to biodegradation and photocatalysis.
URI: http://www.repository.rmutt.ac.th/dspace/handle/123456789/370
ISSN: 0256-1115
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