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Relationship between age of waste and natural electric potential generation in Sanitary Landfill |
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| Authors: | César Augusto Moreira Antonio Celso de Oliveira Braga Letícia Hirata Godoy Diego de Sousa Sardinha |
| Institution: | Departamento de Geologia Aplicada (DGA), Instituto de Geociências e Ciências Exatas (IGCE), Universidade Estadual Paulista (UNESP), Rio Claro, São Paulo State, Brazil, Av. 24-A, 1515, Bela Vista, CEP 13506-900, Rio Claro, São Paulo, State, Brazil;Instituto de Geociências e Ciências Exatas (IGCE), Universidade Estadual Paulista (UNESP), Av. 24-A, 1515, Bela Vista. CEP 13506-900, Rio Claro, São Paulo State, Brazil |
| Abstract: | The geophysical methods are effective tools for determining changes in physical parameters of the geological environment, as soil or groundwater in the presence of contamination. This work consisted on analyzing the natural electric potential obtained over domestic solid waste ditches with controlled closure dates. The interpretation data suggest the generation of electric potential predominantly through the redox phenomenon, as opposed to the flow potential phenomenon. The statistical data analysis indicates a correlation between residence time of the waste and growing variations of voltage. In addition highlights that eight years are required to achieve the reported values for the area with absence of waste, time estimated for decomposition of most organic matter contained in the buried waste. |
| Keywords: | zanja potencial espontáneo materia organic descomposición oxidación ditch self-potential organic matter decomposition oxidation |
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