Transport Processes in Porous Media by Self-Potential Method
A controlled diffusion/infiltration column experimental activity was carried out with the aim of monitoring the leakage of a salty water plume by time-lapse self-potential (SP) measurements. In particular, three tracer tests with different NaCl concentrations (6.00, 1.00, and 0.25 g L−1) were perfor...
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| Format: | Article |
| Language: | English |
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Wiley
2016-01-01
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| Series: | Applied and Environmental Soil Science |
| Online Access: | http://dx.doi.org/10.1155/2016/3951486 |
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| author | Valeria Giampaolo Daniela Calabrese Enzo Rizzo |
| author_facet | Valeria Giampaolo Daniela Calabrese Enzo Rizzo |
| author_sort | Valeria Giampaolo |
| collection | DOAJ |
| description | A controlled diffusion/infiltration column experimental activity was carried out with the aim of monitoring the leakage of a salty water plume by time-lapse self-potential (SP) measurements. In particular, three tracer tests with different NaCl concentrations (6.00, 1.00, and 0.25 g L−1) were performed and all the measured SP signals showed a sharp reduction corresponding to the arrival of saline front with negative electrical potential values (−78.99±3.24 mV, −54.52±2.28 mV, and −24.12±1.21 mV) which decrease with increasing volume of tracer introduced into the column. Then, measured self-potential values were converted into salt concentration ones by the Planck-Henderson equation and sand diffusion (D) and longitudinal dispersivity (αL) values were estimated by modelling the transport equations in the COMSOL Multiphysics environment. Finally, the results show that measured and estimated NaCl concentrations are well correlated. |
| format | Article |
| id | doaj-art-fdc28bcbf572427eb4c91550d2f14b19 |
| institution | Kabale University |
| issn | 1687-7667 1687-7675 |
| language | English |
| publishDate | 2016-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Applied and Environmental Soil Science |
| spelling | doaj-art-fdc28bcbf572427eb4c91550d2f14b192025-08-20T03:25:27ZengWileyApplied and Environmental Soil Science1687-76671687-76752016-01-01201610.1155/2016/39514863951486Transport Processes in Porous Media by Self-Potential MethodValeria Giampaolo0Daniela Calabrese1Enzo Rizzo2Consiglio Nazionale delle Ricerche, Istituto di Metodologie per l’Analisi Ambientale, Laboratorio Hydrogeosite, Contrada Santa Loja, 85050 Tito, ItalyConsiglio Nazionale delle Ricerche, Istituto di Metodologie per l’Analisi Ambientale, Laboratorio Hydrogeosite, Contrada Santa Loja, 85050 Tito, ItalyConsiglio Nazionale delle Ricerche, Istituto di Metodologie per l’Analisi Ambientale, Laboratorio Hydrogeosite, Contrada Santa Loja, 85050 Tito, ItalyA controlled diffusion/infiltration column experimental activity was carried out with the aim of monitoring the leakage of a salty water plume by time-lapse self-potential (SP) measurements. In particular, three tracer tests with different NaCl concentrations (6.00, 1.00, and 0.25 g L−1) were performed and all the measured SP signals showed a sharp reduction corresponding to the arrival of saline front with negative electrical potential values (−78.99±3.24 mV, −54.52±2.28 mV, and −24.12±1.21 mV) which decrease with increasing volume of tracer introduced into the column. Then, measured self-potential values were converted into salt concentration ones by the Planck-Henderson equation and sand diffusion (D) and longitudinal dispersivity (αL) values were estimated by modelling the transport equations in the COMSOL Multiphysics environment. Finally, the results show that measured and estimated NaCl concentrations are well correlated.http://dx.doi.org/10.1155/2016/3951486 |
| spellingShingle | Valeria Giampaolo Daniela Calabrese Enzo Rizzo Transport Processes in Porous Media by Self-Potential Method Applied and Environmental Soil Science |
| title | Transport Processes in Porous Media by Self-Potential Method |
| title_full | Transport Processes in Porous Media by Self-Potential Method |
| title_fullStr | Transport Processes in Porous Media by Self-Potential Method |
| title_full_unstemmed | Transport Processes in Porous Media by Self-Potential Method |
| title_short | Transport Processes in Porous Media by Self-Potential Method |
| title_sort | transport processes in porous media by self potential method |
| url | http://dx.doi.org/10.1155/2016/3951486 |
| work_keys_str_mv | AT valeriagiampaolo transportprocessesinporousmediabyselfpotentialmethod AT danielacalabrese transportprocessesinporousmediabyselfpotentialmethod AT enzorizzo transportprocessesinporousmediabyselfpotentialmethod |