Scheda di dettaglio – i prodotti della ricerca
| Dato | Valore |
|---|---|
| Title | Feasibility of operating a solid-liquid bioreactor with used automobile tires as the sequestering phase for the biodegradation of inhibitory compounds |
| Abstract | Finding new uses for waste or discarded material is an important environmental goal; being able to use a waste material to treat another waste is an even more attractive objective, and this was the purpose of the present work. We previously showed that used automobile tires have an affinity for a toxic contaminant, dichlorophenol (DCP), absorbing and releasing it based on concentration driving forces. Here we have exploited this phenomenon by using used tires as the sequestering phase in a Two-Phase Partitioning Bioreactor (TPPB) to treat otherwise-toxic levels of DCP, far out-performing single phase operation in a sequencing batch bioreactor. A comprehensive examination of substrate loading, reactor exchange ratio, and tire fraction used, demonstrated that the tire-TPPB system could handle a 40% higher influent substrate loading and an increase of the exchange ratio value from 0.5 (prohibitive for single phase operation) to 0.7. Such improvement was obtained with a tire fraction 9%, comparable to that for commercial polymers previously employed in TPPBs. This study has opened the door to the identification of other waste plastics suitable for use in TPPBs for the treatment of recalcitrant organic contaminants |
| Source | Journal of environmental management (Online) 125, pp. 7–11 |
| Keywords | Automobile tire re-useTire-TPPB systemInhibitory compounds removalFeasibility study |
| Journal | Journal of environmental management (Online) |
| Editor | Academic Press, London, Regno Unito |
| Year | 2013 |
| Type | Articolo in rivista |
| DOI | 10.1016/j.jenvman.2013.03.047 |
| Authors | 1)Tomei M.C., 2)Daugulis A.J. |
| Text | 272687 2013 10.1016/j.jenvman.2013.03.047 Automobile tire re use Tire TPPB system Inhibitory compounds removal Feasibility study Feasibility of operating a solid liquid bioreactor with used automobile tires as the sequestering phase for the biodegradation of inhibitory compounds 1 Tomei M.C., 2 Daugulis A.J. 1 Water Research Institute, C.N.R., Via Salaria km 29,300 C.P. 10, 00015 Monterotondo Stazione, Rome, Italy 2 Department of Chemical Engineering, Queen s University, Kingston K7L 3N6, Canada Finding new uses for waste or discarded material is an important environmental goal; being able to use a waste material to treat another waste is an even more attractive objective, and this was the purpose of the present work. We previously showed that used automobile tires have an affinity for a toxic contaminant, dichlorophenol DCP , absorbing and releasing it based on concentration driving forces. Here we have exploited this phenomenon by using used tires as the sequestering phase in a Two Phase Partitioning Bioreactor TPPB to treat otherwise toxic levels of DCP, far out performing single phase operation in a sequencing batch bioreactor. A comprehensive examination of substrate loading, reactor exchange ratio, and tire fraction used, demonstrated that the tire TPPB system could handle a 40% higher influent substrate loading and an increase of the exchange ratio value from 0.5 prohibitive for single phase operation to 0.7. Such improvement was obtained with a tire fraction 9%, comparable to that for commercial polymers previously employed in TPPBs. This study has opened the door to the identification of other waste plastics suitable for use in TPPBs for the treatment of recalcitrant organic contaminants 125 Published version Articolo in rivista Academic Press 1095 8630 Journal of environmental management Online Journal of environmental management Online J. environ. manag. Online Journal of environmental management Online mariaconcetta.tomei TOMEI MARIA CONCETTA TA.P07.002.005 Rimozione di composti xenobiotici da acque di scarico |