Title: The environmental aspects of the evaporation of BTEX from gasoline with and without ethanol

Authors: Franciele Fedrizzi; Jóice Cagliari; Cláudia Echevenguá Teixeira; Alexandra Rodrigues Finotti; Irajá do Nascimento Filho

Addresses: Environmental Engineering Course, University of Caxias do Sul, Rua Francisco Getúlio Vargas, 1130, bairro Petrópolis, Caxias do Sul, RS, Brazil ' Institute of Environmental Sanitation, University of Caxias do Sul, Rua Francisco Getúlio Vargas, 1130, bairro Petrópolis, Caxias do Sul, RS, Brazil ' Institute of Environmental Sanitation, University of Caxias do Sul, Rua Francisco Getúlio Vargas, 1130, bairro Petrópolis, Caxias do Sul, RS, Brazil ' Institute of Environmental Sanitation, University of Caxias do Sul, Rua Francisco Getúlio Vargas, 1130, bairro Petrópolis, Caxias do Sul, RS, Brazil ' Institute of Environmental Sanitation, University of Caxias do Sul, Rua Francisco Getúlio Vargas, 1130, bairro Petrópolis, Caxias do Sul, RS, Brazil

Abstract: In this work the vapours from two columns simulating gasoline-contaminated soils (with and without ethanol) were monitored. Standards mixtures of BTEX, containing different ethanol contents were also analysed. The instrumental analysis was performed by Gas Chromatography with a Flame Ionisation Detector. Among BTEX, except benzene, in both columns the evaporation rate increases with time. In the gasoline/ethanol column this effect is higher particularly for the xylenes. Although the benzene concentrations were reduced in both columns, this reduction was less marked in the gasoline/ethanol column. The toluene concentrations were higher in the pure gasoline column.

Keywords: gasoline vapour; ethanol; BTEX evaporation; benzene; toluene; ethylbenzene; xylene; petrol vapour; soil contamination; environmental pollution.

DOI: 10.1504/IJEWM.2013.051820

International Journal of Environment and Waste Management, 2013 Vol.11 No.2, pp.148 - 157

Accepted: 19 Jan 2010
Published online: 20 Sep 2014 *

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