| Revue: | Revista brasileira de geofisica |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000338719 |
| ISSN: | 0102-261X |
| Autores: | Borges, Welitom Rodrigues1 Lago, Alexandre1 Fachin, Sergio1 Elis, Vagner1 Santos, Ernande1 |
| Instituciones: | 1Universidade de Sao Paulo, Instituto de Astronomia, Geofisica e Ciencias Atmosfericas, Sao Paulo. Brasil |
| Año: | 2006 |
| Periodo: | Oct-Dic |
| Volumen: | 24 |
| Número: | 4 |
| Paginación: | 483-494 |
| País: | Brasil |
| Idioma: | Portugués |
| Tipo de documento: | Artículo |
| Enfoque: | Analítico, descriptivo |
| Resumen en inglés | A variety of environmental problems occurs due to the inadequate disposition of residues. Applied geophysics methodologies to environmental studies show great results in the investigation of contaminating. GPR is a practical and fast geophysical method in such investigations, because the electromagnetic signal assists in the delimitation of the contaminating, addressing direct techniques of investigation (boreholes and wells). This study was developed in an old disposition area to residues lubricants oils (dense nonaqueous phase liquids – DNAPL) in the municipal district of Ribeir˜ao Preto, S˜ao Paulo State. This area is situated in the geological domains of the basaltic floods of the Serra Geral Formation and sandstones of the Botucatu Formation. GPR acquisition was carried out inside and next to 4 ditches of residues disposition, with 100 MHz unshielded antennas, enabling a maximum investigation depth of 7 meters. The limits and of the ditches base can be identify in the GPR sections, except in the ditch 1, which the base is not delineated by GPR. The results show that GPR signal is much attenuated below ditches. This fact could be result of a bacteriological activity in the residue or increase of dissolved salts in the soil caused by acid pH of the residue |
| Resumen en portugués | Uma variedade de problemas ambientais ocorre devido a disposicao inadequada de resıduos. Metodologias geofısicas aplicadas a estudos do meio fısico mostram otimos resultados na investigacao de contaminantes. O georadar e um metodo geofısico pratico e rapido nestas investigacoes, pois a resposta do sinal eletromagnetico auxilia na delimitacao do contaminante em subsuperfıcie, direcionando tecnicas diretas de investigacao (furos e poc¸os de monitoramento). Este estudo foi desenvolvido numa antiga area de disposicao de resıduos de oleos lubrificantes (dense nonaqueous phase liquids – DNAPL) no municıpio de Ribeirao Preto – SP |
| Disciplinas: | Geociencias, Ingeniería |
| Palabras clave: | Geofísica, Ingeniería ambiental, Contaminación, Aceites lubricantes, Residuos, Radar de penetración terrestre, Ribeirao Preto, Brasil |
| Keyword: | Earth sciences, Engineering, Geophysics, Environmental engineering, Pollution, Lubricant oils, Residues, Ground penetrating radar, Ribeirao Preto, Brazil |
| Texte intégral: | Texto completo (Ver PDF) |
