Study of subsoil in former petrol stations in SE of Spain: Physicochemical characterization and hydrocarbon contamination assessment

Rosales, Rosa María; Martínez‐Pagán, Pedro; Faz, Ángel; Bech, Jaume

doi:10.1016/j.gexplo.2014.10.006

Cited by 24 publications

(13 citation statements)

References 39 publications

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“…Xilenos são misturas de três isômeros (orto, meta e para-xileno) e possuem dois grupos metil ligados ao anel benzênico. Apesar de serem menos perigos que os outros BTEX eles podem causar doenças do fígado, rins e sistema nervoso (Rosales et al, 2014).…”

Section: Discussionunclassified

Gerenciamento de áreas contaminadas por postos de combustíveis em Cuiabá, Mato Grosso, Brasil

Lima¹,

Oliveira²,

Golin³

et al. 2017

Rev. ambiente água

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RESUMOA comercialização de combustíveis derivados de petróleo é uma atividade potencialmente poluidora. Tal impacto ocorre principalmente devido a acidentes no transporte com caminhão tanque e vazamentos nos tanques de armazenamento subterrâneo dos postos de combustíveis. O gerenciamento de áreas contaminadas tem o objetivo de reduzir os riscos à saúde humana por meio do conhecimento das características do local contaminado e dos impactos causados pelos contaminantes, proporcionando assim auxílio à tomada de decisão quanto às formas de intervenção mais adequadas. Neste trabalho, por meio da análise dos processos de licenciamento ambiental dos postos de combustíveis de Cuiabá, MT, Brasil, foi possível apresentar um panorama dos postos com algum tipo de contaminação ambiental, já que a investigação de passivos é obrigatória durante esse licenciamento. De 136 processos de licenciamento analisados, constatou-se que em 17 os laudos ambientais apresentaram algum tipo de contaminação no solo e/ou água subterrânea. Os principais contaminantes encontrados foram Benzeno, Tolueno, Etilbenzeno e Xilenos Totais (BTEX) e Hidrocarbonetos Policíclicos Aromáticos (HPA's). Em oito postos foram aplicadas as seguintes técnicas de remediação: três de atenuação natural, três de extração multifásica e três de bombeamento. Ressalta-se que nos nove postos restantes, não foi encontrada informação sobre a aplicação de técnicas de remediação. Destaca-se a necessidade do órgão ambiental estadual tornar pública as informações sobre as áreas contaminadas presentes não somente em Cuiabá, mas em todo o Estado. Segundo a Resolução CONAMA 420/2009 esta é uma obrigação do órgão ambiental para que o gerenciamento das áreas contaminadas possa ser efetivo. É importante também o Estado estabelecer políticas relativas à gestão das áreas contaminadas com legislações específicas ao tema, assim como alguns Estados já tem feito.Palavras-chave: água subterrânea, hidrocarbonetos, licenciamento ambiental, passivo ambiental. Management of contaminated areas by gas stations in Cuiabá, MatoGrosso, Brazil ABSTRACTThe commercialization of petroleum-based fuels is a potentially polluting activity. Environmental impacts are mainly due to tanker truck accidents and leaking underground storage tanks of gas stations. The management of contaminated sites aims to reduce risks to human health and environment through measures that provide knowledge regarding the characteristics of contaminated site and the impacts of contaminants, thus allowing the most appropriate intervention to be determined. This paper analyzed the environmental licensing process of the Cuiaba-MT gas stations in order to present an overview of the gas stations responsible for some type of environmental contamination, since the investigation of liabilities is required for this license. One hundred and thirty-six licensing processes were analyzed, and it was found that 17 of these reported some type of contamination in soil and/or groundwater. The main contaminants were Benzene, Toluene, Ethylbenzene an...

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Section: Discussionunclassified

Gerenciamento de áreas contaminadas por postos de combustíveis em Cuiabá, Mato Grosso, Brasil

Lima¹,

Oliveira²,

Golin³

et al. 2017

Rev. ambiente água

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“…2017 ligados ao anel benzênico. Apesar de serem menos perigos que os outros BTEX eles podem causar doenças do fígado, rins e sistema nervoso (Rosales et al, 2014).…”

Section: Discussionunclassified

Untitled

2017

Rev. ambiente água

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Source: AUGUSTO, M. R.et al. Simulação numérica da dispersão do sulfeto de hidrogênio emitido por um reator UASB para tratamento de esgoto doméstico. Rev. Ambient. Água, Taubaté, vol. 12 n. 2, p. 215-225, 2017. ABSTRACTThis study evaluates the application of a polymeric microfiltration membrane in a gravitational filtration module and its combination with granular activated carbon (GAC) impregnated with copper, resulting in a hybrid process. The proposed system would be used to improve the quality of water for human consumption in developing countries. Permeate flux, pH, Escherichia coli removal, color, turbidity and free chlorine removals were evaluated in the applied process. Instrumental techniques, such as N2 adsorption at 77 K, scanning electron microscopy (SEM), transmission electron microscopy (TEM) and energy dispersive X-ray spectroscopy (EDX) analyses were used to characterize the proposed membrane and adsorbent. The GAC ensured higher chlorine removals, as well as higher permeate flux. Furthermore, the GAC impregnated with copper oxide nanoparticles exhibited higher Escherichia coli removal. Therefore, the hybrid gravitational membrane system applying GAC impregnated with copper oxide could be considered as a potential alternative point-of-use treatment to improve the quality of water for human consumption.

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“…In order to combine a good penetration depth, a reasonable vertical and horizontal resolution, the dipole-dipole array was chosen for this study [40,41]. This measurement array has been successfully used in similar studies [17]. It is noted that a depth of investigation of 2 m was previously programmed through the ELECTRE II software [42].…”

Section: 2electrical Resistivity Tomography (Ert) Methodsmentioning

confidence: 99%

“…The electrical resistivity method is one of the oldest and most commonly used geophysical exploration methods [14]. Indeed, electrical resistivity tomography method is a non-invasive technique that enables to obtain a large number of resistivity data in a short period of time which has been widely used in environmental and engineering [15][16][17][18][19], hydrological [20,21], archaeological [22,23] and mineral exploration [24][25][26] surveys. In addition, it has been used to image structures from the millimetre scale to kilometres [27,28].…”

Section: Introductionmentioning

confidence: 99%

Electrical Resistivity Tomography as a Support Tool to Estimate Physicochemical Properties of Mining Tailings Pond

Gabarrón¹,

Martínez‐Pagán²,

Martínez-Segura³

et al. 2020

Preprint

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Legacy mining industry has left a large number of tailings ponds exposed to water and wind erosion that causes serious environmental and health problems. Prior to rehabilitation actions a deep sampling of the materials infilling the pond used to be necessary. Thus, the primary objective of this study is to demonstrate the usefulness of the Electrical Resistivity Tomography (ERT) method as a non-invasive tool to determine the physicochemical composition of mine tailings ponds, enabling more efficient and low-cost surveys. To achieve this objective, three ERT profiles and three boreholes in each profile were carried out, from each borehole three waste samples from differents depths were collected and a geochemical characterization of the samples was carried. In order to estimate the composition of the infilling wastes in tailing ponds from electrical resistivity measures, several regression models were calculated for different physicochemical properties and metal concentrations. As a result, a high resistivity area was depicted in profiles G2 and G3 while a non-resistive area (profile G1) was also found. Relationships among low resistivity values and high salinity, clay content and high metal concentrations and mobility were established. Specifically, calibrated models were obtained for electrical conductivity, particles sizes of 0.02-50 µm and 50-2000 µm, total Zn and Cd concentration, and bioavailable Ni, Cd and Fe. Therefore, the ERT technique could be considered as a useful tool for mine tailings ponds characterization, and it can be used to estmate some physicochemical properties and metal concentrations of this mine waste.

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Study of subsoil in former petrol stations in SE of Spain: Physicochemical characterization and hydrocarbon contamination assessment

Cited by 24 publications

References 39 publications

Gerenciamento de áreas contaminadas por postos de combustíveis em Cuiabá, Mato Grosso, Brasil

Gerenciamento de áreas contaminadas por postos de combustíveis em Cuiabá, Mato Grosso, Brasil

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Electrical Resistivity Tomography as a Support Tool to Estimate Physicochemical Properties of Mining Tailings Pond

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