Scheda di dettaglio – i prodotti della ricerca
| Dato | Valore |
|---|---|
| Title | Monitoring the drainage efficiency of infiltration trenches in fractured and karstified limestone via time-lapse hydrogeophysical approach |
| Abstract | In the test site of Castellana Grotte (Southern Italy), since 2016, around 2300 m3d-1 of tertiary treated wastewater has been alternatively spread in nine infiltration trenches, dug into fractured and karstified limestone. In one of these trenches, located upstream, seasonal variations in the infiltration rate were observed, with a lower infiltration rate during summer than in winter. This effect could be due to the occurrence of a bioclogging phenomenon in the warm season. In addition, time-lapse electrical resistivity tomography (ERT) was carried out in two different periods, corresponding to the wet and dry seasons, in order to investigate the infiltration process dynamics below the bottom of the trench. Remarkable variability was observed between the south and north sides of the trench-clearly related to the local-scale heterogeneity of the rock formation of the trenches. The results suggest that such an integrated approach should be considered of great interest in case of using infiltration trenches as managed aquifer recharge (MAR) plants. This methodology could provide useful information about the heterogeneities of the rock formation, supporting an alert system for the identification of clogging effects during the life cycle of the plant. |
| Source | Water (Basel) 12 |
| Keywords | infiltration trenches; hydrogeophysical monitoring; fractured and karstified systems; infiltration efficiency |
| Journal | Water (Basel) |
| Editor | Molecular Diversity Preservation International, Basel, |
| Year | 2020 |
| Type | Articolo in rivista |
| DOI | 10.3390/w12072009 |
| Authors | De Carlo L.; Caputo M.C.; Masciale R.; Vurro M.; Portoghese I. |
| Text | 438900 2020 10.3390/w12072009 Scopus 2 s2.0 85087958062 infiltration trenches; hydrogeophysical monitoring; fractured and karstified systems; infiltration efficiency Monitoring the drainage efficiency of infiltration trenches in fractured and karstified limestone via time lapse hydrogeophysical approach De Carlo L.; Caputo M.C.; Masciale R.; Vurro M.; Portoghese I. Water Research Institute, National Research Council of Italy In the test site of Castellana Grotte Southern Italy , since 2016, around 2300 m3d 1 of tertiary treated wastewater has been alternatively spread in nine infiltration trenches, dug into fractured and karstified limestone. In one of these trenches, located upstream, seasonal variations in the infiltration rate were observed, with a lower infiltration rate during summer than in winter. This effect could be due to the occurrence of a bioclogging phenomenon in the warm season. In addition, time lapse electrical resistivity tomography ERT was carried out in two different periods, corresponding to the wet and dry seasons, in order to investigate the infiltration process dynamics below the bottom of the trench. Remarkable variability was observed between the south and north sides of the trench clearly related to the local scale heterogeneity of the rock formation of the trenches. The results suggest that such an integrated approach should be considered of great interest in case of using infiltration trenches as managed aquifer recharge MAR plants. This methodology could provide useful information about the heterogeneities of the rock formation, supporting an alert system for the identification of clogging effects during the life cycle of the plant. 12 Published version http //www.scopus.com/record/display.url eid=2 s2.0 85087958062 origin=inward Articolo in rivista Molecular Diversity Preservation International 2073 4441 Water Basel Water Basel Water Basel Water. Basel michele.vurro VURRO MICHELE mariaclementina.caputo CAPUTO MARIA CLEMENTINA ivan.portoghese PORTOGHESE IVAN rita.masciale MASCIALE RITA lorenzo.decarlo DE CARLO LORENZO |