Scheda di dettaglio – i prodotti della ricerca
| Dato | Valore |
|---|---|
| Title | Feasibility of tubing two-phase bioreactors for biological treatment of high toxicity landfill leachate |
| Abstract | This study describes the performance of a two-phase tubing bioreactor operated with an extractive polymeric membrane able to selectively transfer and biologically remove the toxic fraction of an industrial/hazardous waste landfill leachate. An additional feature of this bioreactor is the separation of the biomass from the polluted stream with consequent marked reduction of the inhibitory/toxic effect exerted by leachate constituents. Process performance has been optimized for decreasing HRTs, from 5.5 to 1.9 h, and step-increased OLRs, from 300 to 900 gCOD/L d with excellent removal efficiencies (88-99%). Removal rates of toxic chemicals, represented by phenolic compounds, as well as mass transfer and biomass activity, were not negatively affected by severe loading conditions. On the contrary, the trend of oxygen consumption rate suggested increased activity of the microorganisms with raised loads. Furthermore, biodegradation efficiency of 90% has been observed by eval-uating the final mass balance after washing the polymer, which retained only 1.5% of totally fed phenolics. This work provided reliable results to conclude that the tested tubing bioreactor is an effective and stable treatment technology ready for commercial application, with evident operating advantages and the possibility to recover concurrently other valuable leachate constituents as VFAs and ammonia. |
| Source | Process safety and environmental protection 174, pp. 951–959 |
| Keywords | Biodegradation of toxic fractionIndustrialhazardous waste landfill leachatePolymeric tubingResource recoveryTwo-phase tubing bioreactor |
| Journal | Process safety and environmental protection |
| Editor | Elsevier Science, Rugby, Regno Unito |
| Year | 2023 |
| Type | Articolo in rivista |
| DOI | 10.1016/j.psep.2023.05.014 |
| Authors | Domenica Mosca Angelucci, M. Concetta Tomei |
| Text | 487618 2023 10.1016/j.psep.2023.05.014 ISI Web of Science WOS 001003093100001 Biodegradation of toxic fraction Industrial hazardous waste landfill leachate Polymeric tubing Resource recovery Two phase tubing bioreactor Feasibility of tubing two phase bioreactors for biological treatment of high toxicity landfill leachate Domenica Mosca Angelucci, M. Concetta Tomei Water Research Institute, National Research Council IRSA CNR , Via Salaria km 29.300, CP 10, Monterotondo Stazione, Rome, 00015 This study describes the performance of a two phase tubing bioreactor operated with an extractive polymeric membrane able to selectively transfer and biologically remove the toxic fraction of an industrial/hazardous waste landfill leachate. An additional feature of this bioreactor is the separation of the biomass from the polluted stream with consequent marked reduction of the inhibitory/toxic effect exerted by leachate constituents. Process performance has been optimized for decreasing HRTs, from 5.5 to 1.9 h, and step increased OLRs, from 300 to 900 gCOD/L d with excellent removal efficiencies 88 99% . Removal rates of toxic chemicals, represented by phenolic compounds, as well as mass transfer and biomass activity, were not negatively affected by severe loading conditions. On the contrary, the trend of oxygen consumption rate suggested increased activity of the microorganisms with raised loads. Furthermore, biodegradation efficiency of 90% has been observed by eval uating the final mass balance after washing the polymer, which retained only 1.5% of totally fed phenolics. This work provided reliable results to conclude that the tested tubing bioreactor is an effective and stable treatment technology ready for commercial application, with evident operating advantages and the possibility to recover concurrently other valuable leachate constituents as VFAs and ammonia. 174 Published version Articolo in rivista Elsevier Science 0957 5820 Process safety and environmental protection Process safety and environmental protection Process saf. environ. prot. Process safety and environmental protection. Transactions of the Institution of Chemical Engineers. Part B, Process safety and environmental protection domenica.moscaangelucci MOSCA ANGELUCCI DOMENICA mariaconcetta.tomei TOMEI MARIA CONCETTA TA.P07.002.005 Rimozione di composti xenobiotici da acque di scarico |