Scheda di dettaglio – i prodotti della ricerca
| Dato | Valore |
|---|---|
| Title | On the applicability of a hybrid bioreactor operated with polymeric tubing for the biological treatment of saline wastewater. |
| Abstract | Effective biological treatment of high salt content wastewater requires consideration of both salt and organic toxicity. This study treated a synthetic saline wastewater containing NaCl (100gL-1) and 2,4-dimethylphenol (1.2gL-1) with a hybrid system consisting of a biological reactor containing spiral-coiled polymeric tubing through which the mixed feed was pumped. The tubing wall was permeable to the organic contaminant, but not to the salt, which allowed transfer of the organic into the cell-containing bioreactor contents for degradation, while not exposing the cells to high salt concentrations. Different grades of DuPont Hytrel polymer were examined on the basis of organic affinity predictions and experimental partition and mass transfer tests. Hytrel G3548 tubing showed the highest permeability for 2,4-dimethylphenol while exerting an effective salt barrier, and was used to verify the feasibility of the proposed system. Very high organic removal (99% after just 5h of treatment) and effective biodegradation of the organic fraction of the wastewater (>90% at the end of the test) were observed. Complete salt separation from the microbial culture was also achieved. |
| Source | Science of the total environment 599-600, pp. 1056–1063 |
| Keywords | Saline wastewaterContinuous two-phase partitioning bioreactorPolymer tubingHybrid bioreactorsSelective mass transferBiological treatment |
| Journal | Science of the total environment |
| Editor | Elsevier, Lausanne ;, Paesi Bassi |
| Year | 2017 |
| Type | Articolo in rivista |
| DOI | 10.1016/j.scitotenv.2017.05.042 |
| Authors | Tomei, M Concetta; Mosca Angelucci, Domenica; Stazi, Valentina; Daugulis, Andrew J |
| Text | 372075 2017 10.1016/j.scitotenv.2017.05.042 ISI Web of Science WOS WOS 000405253500002 Scopus 2 s2.0 85019121948 Saline wastewater Continuous two phase partitioning bioreactor Polymer tubing Hybrid bioreactors Selective mass transfer Biological treatment On the applicability of a hybrid bioreactor operated with polymeric tubing for the biological treatment of saline wastewater. Tomei, M Concetta; Mosca Angelucci, Domenica; Stazi, Valentina; Daugulis, Andrew J Water Research Institute, C.N.R., Via Salaria km 29.300, CP 10, 00015 Monterotondo Stazione Rome , Italy. Electronic address tomei@irsa.cnr.it. Queen s University Kingston Ontario Canada Effective biological treatment of high salt content wastewater requires consideration of both salt and organic toxicity. This study treated a synthetic saline wastewater containing NaCl 100gL 1 and 2,4 dimethylphenol 1.2gL 1 with a hybrid system consisting of a biological reactor containing spiral coiled polymeric tubing through which the mixed feed was pumped. The tubing wall was permeable to the organic contaminant, but not to the salt, which allowed transfer of the organic into the cell containing bioreactor contents for degradation, while not exposing the cells to high salt concentrations. Different grades of DuPont Hytrel polymer were examined on the basis of organic affinity predictions and experimental partition and mass transfer tests. Hytrel G3548 tubing showed the highest permeability for 2,4 dimethylphenol while exerting an effective salt barrier, and was used to verify the feasibility of the proposed system. Very high organic removal 99% after just 5h of treatment and effective biodegradation of the organic fraction of the wastewater >90% at the end of the test were observed. Complete salt separation from the microbial culture was also achieved. 599 600 Published version https //www.scopus.com/record/display.uri eid=2 s2.0 85019121948 origin=resultslist On the applicability of a hybrid bioreactor operated with polymeric tubing for the biological treatment of saline wastewater Tipo documento pdf file Permessi per l accesso al file Riservato su sistemi CNR previa autenticazione STOTEN tubing 2017.pdf Articolo in rivista Elsevier 0048 9697 Science of the total environment Science of the total environment Sci. total environ. STAZI VALENTINA domenica.moscaangelucci MOSCA ANGELUCCI DOMENICA mariaconcetta.tomei TOMEI MARIA CONCETTA TA.P07.002.005 Rimozione di composti xenobiotici da acque di scarico |