Scheda di dettaglio – i prodotti della ricerca
| Dato | Valore |
|---|---|
| Title | 4-NITROPHENOL BIODEGRADATION IN A SEQUENCING BATCH REACTOR: KINETIC STUDY AND EFFECT OF FILLING TIME |
| Abstract | Biodegradation kinetics of 4-nitrophenol (4NP) was investigated in a lab-scale sequencing batch reactor fed with the compound as the sole carbon source. The experimental results showed that complete 4NP removal can be easily achieved with acclimatized biomass, even if an inhibition kinetics is observed; furthermore, an improvement in the removal kinetics is obtained if the substrate concentration peak, reached in the reactor at the end of the filling time, is maintained to quite a low value. Both long feed phase and high biomass concentration are effective in reducing the substrate concentration peakand then improving the process efficiency. Kinetic test data are well correlated by the Haldane equation, with a saturation constant Ks and an inhibition constant KI; of 17.6 and 30.7 (mg l-1 4NP), respectively, whereas the maximum removal rate was in the range of 3.3-8.4(mg 4NP mg VSS-1 d-1) depending on the substrate concentration peak reached in the reaction phase. |
| Source | Water research (Oxf.) 38, pp. 375–384 |
| Keywords | 4-nitrophenol biodegradation; SBR reactor; Haldane kinetics; Xenobiotic removal; Filling time |
| Journal | Water research (Oxf.) |
| Editor | Pergamon Press., New York, Regno Unito |
| Year | 2004 |
| Type | Articolo in rivista |
| DOI | 10.1016/j.watres.2003.09.023 |
| Authors | TOMEI M.C. (a); ANNESINI M.C. (b); BUSSOLETTI S. (b) |
| Text | 42232 2004 10.1016/j.watres.2003.09.023 ISI Web of Science WOS 000188061900013 4 nitrophenol biodegradation; SBR reactor; Haldane kinetics; Xenobiotic removal; Filling time 4 NITROPHENOL BIODEGRADATION IN A SEQUENCING BATCH REACTOR KINETIC STUDY AND EFFECT OF FILLING TIME TOMEI M.C. a ; ANNESINI M.C. b ; BUSSOLETTI S. b a Istituto di Ricerca sulle Acque, CNR, Via Reno 1, Roma 00198, Italy; b Dipartimento di Ingegneria Chimica, Universita degli Studi di Roma La Sapienza , Via Eudossiana 18, Roma 00184, Italy Biodegradation kinetics of 4 nitrophenol 4NP was investigated in a lab scale sequencing batch reactor fed with the compound as the sole carbon source. The experimental results showed that complete 4NP removal can be easily achieved with acclimatized biomass, even if an inhibition kinetics is observed; furthermore, an improvement in the removal kinetics is obtained if the substrate concentration peak, reached in the reactor at the end of the filling time, is maintained to quite a low value. Both long feed phase and high biomass concentration are effective in reducing the substrate concentration peakand then improving the process efficiency. Kinetic test data are well correlated by the Haldane equation, with a saturation constant Ks and an inhibition constant KI; of 17.6 and 30.7 mg l 1 4NP , respectively, whereas the maximum removal rate was in the range of 3.3 8.4 mg 4NP mg VSS 1 d 1 depending on the substrate concentration peak reached in the reaction phase. 38 http //www.sciencedirect.com/science/article/pii/S0043135403005402 Articolo pubblicato su rivista ISI article_published2.pdf Articolo in rivista Pergamon Press. 0043 1354 Water research Oxf. Water research Oxf. Water res. Oxf. Water research. Oxf. mariaconcetta.tomei TOMEI MARIA CONCETTA |