http://www.cnr.it/ontology/cnr/individuo/prodotto/ID28511
Biological treatment of tannery wastewater in the presence of chromium (Articolo in rivista)
- Type
- Label
- Biological treatment of tannery wastewater in the presence of chromium (Articolo in rivista) (literal)
- Anno
- 2004-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1016/j.jenvman.2004.03.011 (literal)
- Alternative label
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Farabegoli G. a); Carucci A. b); Majone M. c), Rolle E. a) (literal)
- Pagina inizio
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- Rivista
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- Note
- Scopu (literal)
- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- a) DITS Department of Hydraulics, Transportation and Roads, University of Rome \"La Sapienza\", Via Eudossiana 18, 00184 Rome, Italy
b) DIGITA, Department of Geoengineering and Environmental Technologies, University of Cagliari, Piazza d'Armi--09123 Cagliari, Italy
c) Department of Chemistry, University of Rome \"La Sapienza\", P.le Aldo Moro 5, 00185 Rome, Italy (literal)
- Titolo
- Biological treatment of tannery wastewater in the presence of chromium (literal)
- Abstract
- Experiments were carried out to determine the feasibility of treating tannery wastewater containing chromium, an inhibiting compound,
with sequencing batch reactors (SBR).
The maximum chromium concentration tolerated by microorganisms was determined through aerobic and anoxic batch experiments, and
the biomass inhibition process was analyzed in a lab scale reactor at increasing chromium concentrations.
The results obtained, in batch experiments and in the SBR reactor, have demonstrated that chromium addition had less influence on the
denitrification bacteria than on the nitrification bacteria. In addition, it was observed that nitrification and denitrification rates, at the same
chromium concentration, were higher in the SBR reactor than in batch experiments with unacclimated biomass. Experimental results confirm
that sequencing batch reactors are able to produce a more resistant biomass, which acclimates quickly to inhibiting conditions. A large
amount of chromium was found in the sludge from the reactor, while the effluent was devoid of the inhibiting metal. (literal)
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