Título: | FLUX AND TRANSPORT STUDY OF PURE GASOLINE AND GASOLINE BLENDED ETHANOL IN UNSATURATED POROUS MEDIA | ||||||||||||||||||||||||||||||||||||||||
Autor: |
GUILHERME BARROS DE CASTRO FILHO |
||||||||||||||||||||||||||||||||||||||||
Colaborador(es): |
EURIPEDES DO AMARAL VARGAS JUNIOR - Orientador PATRICIA OSTERREICHER CUNHA - Coorientador |
||||||||||||||||||||||||||||||||||||||||
Catalogação: | 19/FEV/2008 | Língua(s): | PORTUGUESE - BRAZIL |
||||||||||||||||||||||||||||||||||||||
Tipo: | TEXT | Subtipo: | THESIS | ||||||||||||||||||||||||||||||||||||||
Notas: |
[pt] Todos os dados constantes dos documentos são de inteira responsabilidade de seus autores. Os dados utilizados nas descrições dos documentos estão em conformidade com os sistemas da administração da PUC-Rio. [en] All data contained in the documents are the sole responsibility of the authors. The data used in the descriptions of the documents are in conformity with the systems of the administration of PUC-Rio. |
||||||||||||||||||||||||||||||||||||||||
Referência(s): |
[pt] https://www.maxwell.vrac.puc-rio.br/projetosEspeciais/ETDs/consultas/conteudo.php?strSecao=resultado&nrSeq=11332&idi=1 [en] https://www.maxwell.vrac.puc-rio.br/projetosEspeciais/ETDs/consultas/conteudo.php?strSecao=resultado&nrSeq=11332&idi=2 |
||||||||||||||||||||||||||||||||||||||||
DOI: | https://doi.org/10.17771/PUCRio.acad.11332 | ||||||||||||||||||||||||||||||||||||||||
Resumo: | |||||||||||||||||||||||||||||||||||||||||
The subsurface release of water immiscible pollutants
(NAPLs) due to leaks
in storage tanks or pipelines and spilling transportation
accidents is of great
concern, since the NAPL or its constituents may migrate
through the vadose
zone until reaching the water table and eventually
contaminate clean water
sources. In Brazil, most of the gas stations store ethanol,
pure and gasoline
blended ethanol, diesel, among others in tanks. A spill or
leak of petroleum
hydrocarbons, known as LNAPL (light Nonaqueous phase
liquid), combined with
ethanol has a major contamination potential associated to
cosolvency effects.
The motivation of this work is that many studies have been
developed with
special interest in the saturated zone and little is known
about the behavior of
these pollutants in the vadose zone (McDowell e Powers,
2003 e Österreicher et
al., 2007).
Thus, one dimensional column tests were performed in a
glass porous
media to simulate the spill of hydrocarbons in the
subsurface and compare the
retained mass of benzene in the porous media after a
release of a pure or
ethanol blended gasoline. In order to evaluate these 1D
tests results, the
Hydrocarbon Spill Screening Model - HSSM (Weaver et al.,
1994) was used.
This program can be found in the Environmental Protection
Agency (EPA)
website. A model was also implemented to consider the
cosolvency effects in
function of the ethanol addition in Brazilian`s commercial
gasoline.
The laboratory`s results were compared with the ones
obtained by the
model mentioned above and showed a satisfactory
approximation for the
prediction of the contaminant behavior.
|
|||||||||||||||||||||||||||||||||||||||||
|