Geophysical study in waste landfill localized above fractured rocks

  • César Augusto Moreira Departamento de Geologia Aplicada (DGA) - UNESP - SP
  • Monica Teixeira Oliveira Universidade Federal do Pampa - UNIPAMPA
  • Ariveltom Cosme da Silva Universidade Federal de Rondônia
Keywords: geophysics, electrical resistivity, voltage, leachate, fractures

Abstract

Geophysical survey is an important method for investigation of contaminated areas used in the characterization of contrasting physical properties in the presence of pollutants. This work applied the geophysical methods of Electrical Resistivity and Self Potential in waste landfill, located in Caçapava do Sul city, RS. The landfill is located over fractured metamorphic rocks. Eight lines of electrical profiling with 288 measures of self potential were done. In addition, 83 measurements of direction and dip of fractures were taken. The application of spontaneous potential method permitted to detect the direction of groundwater flow. The electrical resistivity measurements allowed the identification of low-intensity anomalies associated with the presence of leachate. There is a relationship between anomalous zones and the directions of fractures.

Author Biographies

César Augusto Moreira, Departamento de Geologia Aplicada (DGA) - UNESP - SP
Bormado em Geologia pela UNESP em 2003. Mestrado (2006) e Doutorado (2009) em Geociências e Meio Ambiente pelo IGCE-UNESP, em geofísica aplicada em estudos ambientais. Atuou como geologo de lavra em mineração de ouro (Yamana Gold) no Estado do Mato Grosso (2006). Atualmente é professor adjunto no curso de graduação em Geofísica da Universidade Federal do Pampa - UNIPAMPA - Câmpus de Caçapava do Sul-RS.
Monica Teixeira Oliveira, Universidade Federal do Pampa - UNIPAMPA
Aluna de graduação em Geofísica na Universidade Federal do Pampa, UNIPAMPA/Campus Caçapava do Sul (RS). Áreas de interesse: Meio Ambiente, Mineração e Hidrogeologia.
Published
22/08/2011
Issue
Vol. 6 No. 2 (2011)
Section
Papers

Authors maintain the copyrights for their work. However, they grant rights of first publication to Ambiente e Agua - An Interdisciplinary Journal of Applied Science. In compensation, the journal can transfer the copyrights, allowing non-commercial use of the article including the right of sending the article to other data bases or publication media. The journal uses the CC BY 4.0 license"