Scheda di dettaglio – i prodotti della ricerca
| Dato | Valore |
|---|---|
| Title | Sequential anaerobic-aerobic decolourization of a real textile wastewater in a two-phase partitioning bioreactor |
| Abstract | This work describes the application of a solid-liquid two-phase partitioning bioreactor (TPPB) for the removal of colour froma real textile wastewater containing reactive azo-dyes. Four polymers were tested over the pH range of 4-9 to select the most effective absorbant to be used as the partitioning phase in the TPPB. The best results were obtained with Hytrel 8206 at pH 4 achieving ~70% colour removal, based on the dominant wavelength, in the first 5 h of contact time, and 84% after 24 h. Wastewater treatment was undertaken in a solid-liquid TPPB operated with Hytrel 8206 in sequential anaerobic-aerobic configuration. The reaction time of 23 h was equally distributed between the anaerobic and aerobic phases and, to favour colour uptake, the pH was controlled at 4.5 in the first 4 h of the anaerobic phase, and then increased to 7.5. Colour removal (for the dominant wavelength, 536 nm) increased from 70 to 85% by modifying the bioreactor operation fromsingle-phase to TPPB mode. Based on COD measurements nearly complete biodegradation of the intermediates produced in the anaerobic phase was obtained, both in the single-phase and two-phasemode, with better performance of the TPPB system reaching 75% CODDye removal. |
| Source | Science of the total environment 573, pp. 585–593 |
| Keywords | Polymer HytrelReactive dyesSequential anaerobic-aerobic decolourizationSolid-liquid TPPB bioreactorTextile effluents |
| Journal | Science of the total environment |
| Editor | Elsevier, Lausanne ;, Paesi Bassi |
| Year | 2016 |
| Type | Articolo in rivista |
| DOI | 10.1016/j.scitotenv.2016.08.140 |
| Authors | Tomei M.C.; Mosca Angelucci D.; Daugulis A.J. |
| Text | 358073 2016 10.1016/j.scitotenv.2016.08.140 Scopus 2 s2.0 84983609888 ISI Web of Science WOS WOS 000390071000055 Polymer Hytrel Reactive dyes Sequential anaerobic aerobic decolourization Solid liquid TPPB bioreactor Textile effluents Sequential anaerobic aerobic decolourization of a real textile wastewater in a two phase partitioning bioreactor Tomei M.C.; Mosca Angelucci D.; Daugulis A.J. Water Research Institute, C.N.R., Via Salaria km 29.300, CP 10, Monterotondo Stazione, Rome, 00015, Italy; Department of Chemical Engineering, Queen s University, Kingston, Ontario, K7L 3N6, Canada This work describes the application of a solid liquid two phase partitioning bioreactor TPPB for the removal of colour froma real textile wastewater containing reactive azo dyes. Four polymers were tested over the pH range of 4 9 to select the most effective absorbant to be used as the partitioning phase in the TPPB. The best results were obtained with Hytrel 8206 at pH 4 achieving 70% colour removal, based on the dominant wavelength, in the first 5 h of contact time, and 84% after 24 h. Wastewater treatment was undertaken in a solid liquid TPPB operated with Hytrel 8206 in sequential anaerobic aerobic configuration. The reaction time of 23 h was equally distributed between the anaerobic and aerobic phases and, to favour colour uptake, the pH was controlled at 4.5 in the first 4 h of the anaerobic phase, and then increased to 7.5. Colour removal for the dominant wavelength, 536 nm increased from 70 to 85% by modifying the bioreactor operation fromsingle phase to TPPB mode. Based on COD measurements nearly complete biodegradation of the intermediates produced in the anaerobic phase was obtained, both in the single phase and two phasemode, with better performance of the TPPB system reaching 75% CODDye removal. 573 Published version http //www.scopus.com/inward/record.url eid=2 s2.0 84983609888 partnerID=q2rCbXpz Sequential anaerobic aerobic decolourization of a real textile wastewater in a two phase partitioning bioreactor Tipo documento pdf file Permessi per l accesso al file Riservato su sistemi CNR previa autenticazione STOTEN_16_Textile.pdf Articolo in rivista Elsevier 0048 9697 Science of the total environment Science of the total environment Sci. total environ. domenica.moscaangelucci MOSCA ANGELUCCI DOMENICA mariaconcetta.tomei TOMEI MARIA CONCETTA TA.P07.002.005 Rimozione di composti xenobiotici da acque di scarico |