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: 25 Apr 2015 *

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