Caracterização isotópica do CO2 dissolvido em águas subterrâneas no município de Paulínia, SP

• Ano de defesa: 2014
• Autor(a) principal: Bordignon, Rogério [UNESP]
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Estadual Paulista (Unesp)
• Palavras-chave em Português: Biodegradation; Biodegradação; Isotopos; Águas subterrâneas; Hidrogeologia; Geomorfologia; Paulinia (SP)
• Link de acesso: http://hdl.handle.net/11449/123852; http://www.athena.biblioteca.unesp.br/exlibris/bd/cathedra/15-05-2014/000830004.pdf

Several studies have attested that biodegradation is responsible for changes in the values of of CO2 and dissolved inorganic carbon present in groundwater CH4, corresponding to a tool highly relevant for studies of processes involving natural attenuation. From a promising sampling method developed in the present work, the collection of samples for CO2 monitoring wells located was held on by a contaminated jet fuel area in Paulinia / SP. The reactions of hydrocarbons biodegradation active in the area is represented by a reduction of Fe (III) and methanogenesis as indicated by the high concentration of Fe (II) and CH4. The results indicate that biodegradation can not significantly change the natural values of 13 C of soil and groundwater, the large volume of CO2 present naturally in groundwater. The results obtained in laboratory conditions of fractionation as a function of biodegradation can not express themselves in field conditions