alexa Comparative Study of Injection Systems in Vapor Phase in the Remediation of Soils Contaminated by Diesel
ISSN:2157-7463

Journal of Petroleum & Environmental Biotechnology
Open Access

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Research Article

Comparative Study of Injection Systems in Vapor Phase in the Remediation of Soils Contaminated by Diesel

Rayana Hozana Bezerril1, Tamyris Thaise Costa de Souza2, Adriana Margarida Zanbotto Ramalho3, Djalma Ribeiro da Silva1,4*, Tereza Neuma de Castro Dantas2,4
1Petroleum Engineering Post-Graduation Program, Federal University of Rio Grande do Norte, UFRN, Brazil
2Chemical Engineering Post-Graduation Program, Federal University of Rio Grande do Norte, UFRN, Brazil
3National Program of Post-Doctoral – PNPD/CAPES, Federal University of Rio Grande do Norte, UFRN, Brazil
4Chemistry Post-Graduation Program, Institute of Chemistry, Federal University of Rio Grande do Norte, UFRN, Brazil
Corresponding Author : Djalma Ribeiro da Silva
Federal University of Rio Grande do Norte
UFRN, Brazil
Tel: +336-334-7787
E-mail: [email protected]
Received July 03, 2014; Accepted August 11, 2014; Published August 18, 2014
Citation: Bezerril RH, de Souza TTC, Ramalho AMZ, da Silva DR, Dantas TNC (2014) Comparative Study of Injection Systems in Vapor Phase in the Remediation of Soils Contaminated by Diesel. J Pet Environ Biotechnol 5:184 doi:10.4172/2157-7463.1000184
Copyright: © 2014 Bezerril RH, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Abstract

Gasoline and diesel leaks in underground storage tanks contaminate soils with petroleum hydrocarbons. Various techniques using surfactants have been proposed to remedy this type of contamination. This study presents the application of different systems containing surfactants in vapor phase. It compares the removal efficiencies of diesel contaminated soils using vapor injection systems: surfactant water solutions, micro-emulsions, and nano-emulsions. The surfactant used in the experiments was ethoxylated alcohol UNTL-90 in aqueous solution, in nano-emulsion, and micro-emulsion systems. Among the systems investigated, the nano-emulsion showed the highest removal efficiency (88%), being environmentally friendly and technically feasible with a system that has a lower content of active matter.

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