Scheda di dettaglio – i prodotti della ricerca
| Dato | Valore |
|---|---|
| Title | REMOVAL OF BIOCOLLOIDS SUSPENDED IN RECLAIMED WASTEWATER BY INJECTION INTO A FRACTURED AQUIFER MODEL |
| Abstract | Two pilot-scale fractured aquifer models (FAMs) consisting of horizontal limestone slabs were employed to investigate the removal of biocolloids suspended in reclaimed wastewater. To better understand the behavior of real fractured aquifers, theseFAMsintentionallywerenot "clean".Thefracture apertures were randomly spread with soil deposits, and both FAMs were preflooded with reclaimed wastewater to simulate the field conditions of the Nardo` fractured aquifer in the Salento area, Italy, where fractures are not clean due to artificial groundwater recharge. One of the FAMs was injected with secondary effluent from a wastewater treatment plant collected prior to the chlorination step and the other with exactly the same effluent, which was further treated in a commercial membrane reactor. Consequently, the organic and pathogen concentrations were considerably higher in the secondary effluent than in the membrane reactor effluent. Injected wastewater was continuously recirculated. Pathogen removal was greater for the secondary wastewater than the cleaner membrane reactor effluent. A simple mathematical model was developed to describe fracture clogging. The results suggest that the hydraulic conductivity of FAMs can be significantly degraded due to retention of viable and inactivated biocolloids suspended in reclaimed wastewater. |
| Source | Environmental science & technology 44, pp. 971–977 |
| Keywords | Fractured aquiferArtificial rechargeClogging |
| Journal | Environmental science & technology |
| Editor | American Chemical Society,, Easton, Pa., Stati Uniti d'America |
| Year | 2010 |
| Type | Articolo in rivista |
| DOI | 10.1021/es902754n |
| Authors | CHRYSIKOPOULOS C., MASCIOPINTO C., LA MANTIA R., MANARIOTIS I. |
| Text | 42354 2010 10.1021/es902754n Fractured aquifer Artificial recharge Clogging REMOVAL OF BIOCOLLOIDS SUSPENDED IN RECLAIMED WASTEWATER BY INJECTION INTO A FRACTURED AQUIFER MODEL CHRYSIKOPOULOS C., MASCIOPINTO C., LA MANTIA R., MANARIOTIS I. Environmental Engineering Laboratory, Department of Civil, Engineering, University of Patras, Patras 26500, Greece. Water Research Institute, National Research Council, Via Francesco De Blasio 5, 70123 Bari, Italy Two pilot scale fractured aquifer models FAMs consisting of horizontal limestone slabs were employed to investigate the removal of biocolloids suspended in reclaimed wastewater. To better understand the behavior of real fractured aquifers, theseFAMsintentionallywerenot clean .Thefracture apertures were randomly spread with soil deposits, and both FAMs were preflooded with reclaimed wastewater to simulate the field conditions of the Nardo` fractured aquifer in the Salento area, Italy, where fractures are not clean due to artificial groundwater recharge. One of the FAMs was injected with secondary effluent from a wastewater treatment plant collected prior to the chlorination step and the other with exactly the same effluent, which was further treated in a commercial membrane reactor. Consequently, the organic and pathogen concentrations were considerably higher in the secondary effluent than in the membrane reactor effluent. Injected wastewater was continuously recirculated. Pathogen removal was greater for the secondary wastewater than the cleaner membrane reactor effluent. A simple mathematical model was developed to describe fracture clogging. The results suggest that the hydraulic conductivity of FAMs can be significantly degraded due to retention of viable and inactivated biocolloids suspended in reclaimed wastewater. 44 Published version Articolo pubblicato Chrysikopoulos_et_al_ES_T.pdf Articolo in rivista American Chemical Society, 0013 936X Environmental science technology Environmental science technology Environ. sci. technol. Environmental science technology. ES T Environmental science and technology LA MANTIA ROSANNA costantino.masciopinto MASCIOPINTO COSTANTINO TA.P05.006.007 Fattori critici dei rischi di siccita e strategie dintervento |