| Title | Nonylphenol polyethoxylate degradation in aqueous waste by the use of batch and continuous biofilm bioreactors |
|---|---|
| Publication Type | Articolo su Rivista peer-reviewed |
| Year of Publication | 2009 |
| Authors | Di Gioia, D., Sciubba Luigi, Bertin L., Barberio C., Salvadori L., Frassinetti S., and Fava F. |
| Journal | Water Research |
| Volume | 43 |
| Pagination | 2977-2988 |
| ISSN | 00431354 |
| Keywords | 4 nonylphenol, Activated carbon, Activated carbon treatment, activated sludge, Activated sludge plants, Activated sludge process, aqueous solution, article, Bacteria (microorganisms), batch reactor, Batch reactors, Bioconversion, Biodegradation, biofilm, biofilm reactor, Biofilms, Biological water treatment, Biomineralization, Bioreactor, Bioreactors, Biotechnological process, Biotechnology, cell culture, Contaminated wastewater, continuous flow reactor, controlled study, effluent, Effluents, Fish, fluorescence in situ hybridization, Granular activated carbons, Immobilization, immobilized cell, Industrial plants, Industrial water treatment, Nonylphenol ethoxylates, nonylphenol polyethoxylate, Nonylphenol polyethoxylates, oligonucleotide probe, oxic conditions, packed bed reactor, Packed beds, Packed-bed bioreactors, Phenols, Physiological condition, polymer, priority journal, shape analysis, Silica, Solvent extraction, surfactant, Textile industry, unclassified drug, waste water management, Wastewater, Wastewater treatment, Water treatment |
| Abstract | An aerobic bacterial consortium (Consortium A) was recently obtained from textile wastewater and was capable of degrading 4-nonylphenol and nonylphenol polyethoxylates (NPnEOs). In the perspective of developing a biotechnological process for the treatment of effluents from activated sludge plants fed with NPnEO contaminated wastewater, the capability of Consortium A of biodegrading an industrial mixture of NPnEOs in the physiological condition of immobilized cells was investigated. Two identically configured packed bed reactors were developed by immobilizing the consortium on silica beads or granular activated carbon. Both reactors were tested in batch and continuous mode by feeding them with water supplemented with NPnEOs. The two reactors were monitored through chemical, microbiological and molecular integrated methodology. Active biofilms were generated on both immobilization supports. Both reactors displayed comparable NPnEO mineralization under batch and continuous conditions. FISH analyses evidenced that the biofilms evolved with time by changing the reactor operation mode and the organic load. Taken together, the data collected in this study provide a preliminary strong indication on the feasibility of Consortium A-based biofilm technology for the decontamination of NPnEO containing effluents. © 2009 Elsevier Ltd. All rights reserved. |
| Notes | cited By 26 |
| URL | https://www.scopus.com/inward/record.uri?eid=2-s2.0-70149112418&doi=10.1016%2fj.watres.2009.04.011&partnerID=40&md5=bd08737ae2939eebc2bd299f3dc6faf8 |
| DOI | 10.1016/j.watres.2009.04.011 |
| Citation Key | DiGioia20092977 |
