Title: Kinetic study of toxic pollutants decomposition by ozone in landfill leachate using a numerical adaptive method

Authors: Tatyana Poznyak, Isaac Chairez

Addresses: Superior School of Chemical Engineering, National Polytechnic Institute of Mexico (ESIQIE-IPN), Edif. 7, UPALM, PC 07738, Mexico. ' Professional Interdisciplinary Unit of Biotechnology – National Polytechnic Institute of Mexico (UPIBI-IPN), Av. Acueducto s/n. Col. Barrio la Laguna, PC 07340, Mexico

Abstract: This study describes a new method to perform the kinetic study of toxic pollutants decomposition by ozone in landfill leachate using a novel numerical adaptive method based on the classical least square method. The leachate was obtained from the Mexico City waste sanitary landfill (Bordo Poniente) and was treated by ozonation after a coagulation treatment with Fe2(SO4)3. For the partial identification of the initial organic matter composition, intermediates and final products of ozonation, the extraction of the initial and ozonated leachate with benzene, chloroform : methanol (2 : 1) and hexane was carried out, and then the extracts were analysed with a gas chromatography.

Keywords: landfill leachate; ozonation kinetics; numerical adaptive method; toxic pollutants; pollutant decomposition; ozone; environmental pollution; least squares; leachate treatment.

DOI: 10.1504/IJEE.2011.041350

International Journal of Environmental Engineering, 2011 Vol.3 No.3/4, pp.221 - 239

Published online: 20 Jul 2011 *

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