Olive-oil mill wastewater transport under unsaturated and saturated laboratory conditions using the geoelectrical resistivity tomography method and the FEFLOW model

P. Seferou; P. Soupios; N. N. Kourgialas; Z. Dokou; G. P. Karatzas; E. Candasayar; N. Papadopoulos; V. Dimitriou; A. Sarris; M. Sauter

doi:10.1007/s10040-013-0996-x

Olive-oil mill wastewater transport under unsaturated and saturated laboratory conditions using the geoelectrical resistivity tomography method and the FEFLOW model

Translated title of the contribution: Olive-oil mill wastewater transport under unsaturated and saturated laboratory conditions using the geoelectrical resistivity tomography method and the FEFLOW model

P. Seferou, P. Soupios^*, N. N. Kourgialas, Z. Dokou, G. P. Karatzas, E. Candasayar, N. Papadopoulos, V. Dimitriou, A. Sarris, M. Sauter

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

30 Scopus citations

Abstract

An integrated approach for monitoring the vertical transport of a solute into the subsurface by using a geophysical method and a simulation model is proposed and evaluated. A medium-scale (1 m³) laboratory tank experiment was constructed to represent a real subsurface system, where an olive-oil mill wastewater (OOMW) spill might occur. High-resolution cross-hole electrical resistivity tomography (ERT) was performed to monitor the OOMW transport. Time-lapse ERT images defined the spatial geometry of the interface between the contaminated and uncontaminated soil into the unsaturated and saturated zones. Knowing the subsurface characteristics, the finite element flow and transport model FEFLOW was used for simulating the contaminant movement, utilizing the ERT results as a surrogate for concentration measurements for the calibration process. A statistical analysis of the ERT measurements and the corresponding transport model results for various time steps showed a good agreement between them. In addition, a sensitivity analysis of the most important parameters of the simulation model (unsaturated flow, saturated flow and transport) was performed. This laboratory-scale study emphasizes that the combined use of geophysical and transport-modeling approaches can be useful for small-scale field applications where contaminant concentration measurements are scarce, provided that its transferability from laboratory to field conditions is investigated thoroughly.

Translated title of the contribution	Olive-oil mill wastewater transport under unsaturated and saturated laboratory conditions using the geoelectrical resistivity tomography method and the FEFLOW model
Original language	English
Pages (from-to)	1219-1234
Number of pages	16
Journal	Hydrogeology Journal
Volume	21
Issue number	6
DOIs	https://doi.org/10.1007/s10040-013-0996-x
State	Published - Sep 2013
Externally published	Yes

Bibliographical note

Funding Information:
The project is co-funded by the European Social Fund and National Resources in the framework of the project THALIS (32-4-4), entitled “GEODIAMETRIS – Integrated Geoinformatics Technologies for Time-Lapse Monitoring of Land Pollution from the Disposal of Olive-Oil Mills Waste”. Dr. Tobias Geyer is thanked for his valuable support in this work and comments made for improving the manuscript. We are grateful also to Dr. Hasan Aktarakçi from the AGI, who re-processed the resistivity data using the sand box module of the Earth Imaging 3D software. Our gratitude also goes to Prof. Allen Bateman, for his detailed explanation about the ‘Brazil nut effect’ and granular convection phenomenon. We wish to thank also Prof. E. Steiakakis and Prof. K. Komnitsas for estimating the hydraulic parameters of the soil and providing the chemical analysis of the OOMW, respectively.

Keywords

Hydrogeophysics
Laboratory experiment
Phenol
Transport modeling

ASJC Scopus subject areas

Water Science and Technology
Earth and Planetary Sciences (miscellaneous)

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1007/s10040-013-0996-x

Cite this

Seferou, P., Soupios, P., Kourgialas, N. N., Dokou, Z., Karatzas, G. P., Candasayar, E., Papadopoulos, N., Dimitriou, V., Sarris, A., & Sauter, M. (2013). Olive-oil mill wastewater transport under unsaturated and saturated laboratory conditions using the geoelectrical resistivity tomography method and the FEFLOW model. Hydrogeology Journal, 21(6), 1219-1234. https://doi.org/10.1007/s10040-013-0996-x

@article{5f5eb5cce6ac4ccb9ab7219b555eb2d7,

title = "Olive-oil mill wastewater transport under unsaturated and saturated laboratory conditions using the geoelectrical resistivity tomography method and the FEFLOW model",

abstract = "An integrated approach for monitoring the vertical transport of a solute into the subsurface by using a geophysical method and a simulation model is proposed and evaluated. A medium-scale (1 m3) laboratory tank experiment was constructed to represent a real subsurface system, where an olive-oil mill wastewater (OOMW) spill might occur. High-resolution cross-hole electrical resistivity tomography (ERT) was performed to monitor the OOMW transport. Time-lapse ERT images defined the spatial geometry of the interface between the contaminated and uncontaminated soil into the unsaturated and saturated zones. Knowing the subsurface characteristics, the finite element flow and transport model FEFLOW was used for simulating the contaminant movement, utilizing the ERT results as a surrogate for concentration measurements for the calibration process. A statistical analysis of the ERT measurements and the corresponding transport model results for various time steps showed a good agreement between them. In addition, a sensitivity analysis of the most important parameters of the simulation model (unsaturated flow, saturated flow and transport) was performed. This laboratory-scale study emphasizes that the combined use of geophysical and transport-modeling approaches can be useful for small-scale field applications where contaminant concentration measurements are scarce, provided that its transferability from laboratory to field conditions is investigated thoroughly.",

keywords = "Hydrogeophysics, Laboratory experiment, Phenol, Transport modeling",

author = "P. Seferou and P. Soupios and Kourgialas, \{N. N.\} and Z. Dokou and Karatzas, \{G. P.\} and E. Candasayar and N. Papadopoulos and V. Dimitriou and A. Sarris and M. Sauter",

note = "Funding Information: The project is co-funded by the European Social Fund and National Resources in the framework of the project THALIS (32-4-4), entitled “GEODIAMETRIS – Integrated Geoinformatics Technologies for Time-Lapse Monitoring of Land Pollution from the Disposal of Olive-Oil Mills Waste”. Dr. Tobias Geyer is thanked for his valuable support in this work and comments made for improving the manuscript. We are grateful also to Dr. Hasan Aktarak{\c c}i from the AGI, who re-processed the resistivity data using the sand box module of the Earth Imaging 3D software. Our gratitude also goes to Prof. Allen Bateman, for his detailed explanation about the {\textquoteleft}Brazil nut effect{\textquoteright} and granular convection phenomenon. We wish to thank also Prof. E. Steiakakis and Prof. K. Komnitsas for estimating the hydraulic parameters of the soil and providing the chemical analysis of the OOMW, respectively.",

year = "2013",

month = sep,

doi = "10.1007/s10040-013-0996-x",

language = "English",

volume = "21",

pages = "1219--1234",

journal = "Hydrogeology Journal",

issn = "1431-2174",

publisher = "Springer Nature",

number = "6",

}

Seferou, P, Soupios, P, Kourgialas, NN, Dokou, Z, Karatzas, GP, Candasayar, E, Papadopoulos, N, Dimitriou, V, Sarris, A & Sauter, M 2013, 'Olive-oil mill wastewater transport under unsaturated and saturated laboratory conditions using the geoelectrical resistivity tomography method and the FEFLOW model', Hydrogeology Journal, vol. 21, no. 6, pp. 1219-1234. https://doi.org/10.1007/s10040-013-0996-x

TY - JOUR

T1 - Olive-oil mill wastewater transport under unsaturated and saturated laboratory conditions using the geoelectrical resistivity tomography method and the FEFLOW model

AU - Seferou, P.

AU - Soupios, P.

AU - Kourgialas, N. N.

AU - Dokou, Z.

AU - Karatzas, G. P.

AU - Candasayar, E.

AU - Papadopoulos, N.

AU - Dimitriou, V.

AU - Sarris, A.

AU - Sauter, M.

N1 - Funding Information: The project is co-funded by the European Social Fund and National Resources in the framework of the project THALIS (32-4-4), entitled “GEODIAMETRIS – Integrated Geoinformatics Technologies for Time-Lapse Monitoring of Land Pollution from the Disposal of Olive-Oil Mills Waste”. Dr. Tobias Geyer is thanked for his valuable support in this work and comments made for improving the manuscript. We are grateful also to Dr. Hasan Aktarakçi from the AGI, who re-processed the resistivity data using the sand box module of the Earth Imaging 3D software. Our gratitude also goes to Prof. Allen Bateman, for his detailed explanation about the ‘Brazil nut effect’ and granular convection phenomenon. We wish to thank also Prof. E. Steiakakis and Prof. K. Komnitsas for estimating the hydraulic parameters of the soil and providing the chemical analysis of the OOMW, respectively.

PY - 2013/9

Y1 - 2013/9

N2 - An integrated approach for monitoring the vertical transport of a solute into the subsurface by using a geophysical method and a simulation model is proposed and evaluated. A medium-scale (1 m3) laboratory tank experiment was constructed to represent a real subsurface system, where an olive-oil mill wastewater (OOMW) spill might occur. High-resolution cross-hole electrical resistivity tomography (ERT) was performed to monitor the OOMW transport. Time-lapse ERT images defined the spatial geometry of the interface between the contaminated and uncontaminated soil into the unsaturated and saturated zones. Knowing the subsurface characteristics, the finite element flow and transport model FEFLOW was used for simulating the contaminant movement, utilizing the ERT results as a surrogate for concentration measurements for the calibration process. A statistical analysis of the ERT measurements and the corresponding transport model results for various time steps showed a good agreement between them. In addition, a sensitivity analysis of the most important parameters of the simulation model (unsaturated flow, saturated flow and transport) was performed. This laboratory-scale study emphasizes that the combined use of geophysical and transport-modeling approaches can be useful for small-scale field applications where contaminant concentration measurements are scarce, provided that its transferability from laboratory to field conditions is investigated thoroughly.

AB - An integrated approach for monitoring the vertical transport of a solute into the subsurface by using a geophysical method and a simulation model is proposed and evaluated. A medium-scale (1 m3) laboratory tank experiment was constructed to represent a real subsurface system, where an olive-oil mill wastewater (OOMW) spill might occur. High-resolution cross-hole electrical resistivity tomography (ERT) was performed to monitor the OOMW transport. Time-lapse ERT images defined the spatial geometry of the interface between the contaminated and uncontaminated soil into the unsaturated and saturated zones. Knowing the subsurface characteristics, the finite element flow and transport model FEFLOW was used for simulating the contaminant movement, utilizing the ERT results as a surrogate for concentration measurements for the calibration process. A statistical analysis of the ERT measurements and the corresponding transport model results for various time steps showed a good agreement between them. In addition, a sensitivity analysis of the most important parameters of the simulation model (unsaturated flow, saturated flow and transport) was performed. This laboratory-scale study emphasizes that the combined use of geophysical and transport-modeling approaches can be useful for small-scale field applications where contaminant concentration measurements are scarce, provided that its transferability from laboratory to field conditions is investigated thoroughly.

KW - Hydrogeophysics

KW - Laboratory experiment

KW - Phenol

KW - Transport modeling

UR - https://www.scopus.com/pages/publications/84883024816

U2 - 10.1007/s10040-013-0996-x

DO - 10.1007/s10040-013-0996-x

M3 - Article

AN - SCOPUS:84883024816

SN - 1431-2174

VL - 21

SP - 1219

EP - 1234

JO - Hydrogeology Journal

JF - Hydrogeology Journal

IS - 6

ER -

Olive-oil mill wastewater transport under unsaturated and saturated laboratory conditions using the geoelectrical resistivity tomography method and the FEFLOW model

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

UN SDGs

Access to Document

Fingerprint

Cite this