Produção Nacional
Contamination of the Water Table by an Oil Spill at the Presidente Getulio Vargas Refinery – Repar, Municipality of Araucaria, Paraná
2003; Atlantis Press; Volume: 2003; Issue: 1 Linguagem: Inglês
10.7901/2169-3358-2003-1-1027
ISSN2169-3366
AutoresArtur Cezar Bastos Neto, NELSON CAICEDO, Clarissa Lovato Melo, Alexandra Finott,
Tópico(s)Groundwater flow and contamination studies
ResumoABSTRACT This paper presents the results of the evaluation of contamination in the Saldanha Creek basin, caused by an oil spill at Refinaria Presidente Getúlio Vargas belonging to PETROBRAS, in Araucária – state of Paraná, which occurred on July 16, 2000. The oil reached Saldanha stream following 4 distinct paths and, over its course, overflowed the canal banks contaminating a total of 17.70 hectares of existing wetlands. The oil infiltration into the subsoil occurred in two main areas: (1) around the scraper, which is where most of the oil was infiltrated (approximately 43,000 liters of oil in free phase); (2) in Wetland 4, where the contaminant is mainly adsorbed to the soil particles. The characteristics of the former favor the implementation of a subsurface drainage system, with an oil separator. In the second, flooding the area would allow the removal of part of the contaminant by a difference of density, and part with a reactive barrier to which the groundwater flow would be induced.
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