Start-up of a Granular sludge Sequencing Batch Reactor for the treatment of 2,4-dichlorophenol contaminated wastewater (Contributo in atti di convegno)

Type

• Contributo in atti di convegno (Classe)
• Prodotto della ricerca (Classe)

Label

• Start-up of a Granular sludge Sequencing Batch Reactor for the treatment of 2,4-dichlorophenol contaminated wastewater (Contributo in atti di convegno) (literal)

Anno

• 2012-01-01T00:00:00+01:00 (literal)

Alternative label

• S. Milia, R. Porcu, S. Rossetti, A. Carucci (2012)
  Start-up of a Granular sludge Sequencing Batch Reactor for the treatment of 2,4-dichlorophenol contaminated wastewater
  in IWA - World Water Congress & Exhibition, Busan (Sud Corea), 16-21 Settembre 2012
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• S. Milia, R. Porcu, S. Rossetti, A. Carucci (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• Istituto di Geologia Ambientale e Geoingegneria (IGAG-CNR); Università degli Studi di Cagliari - Dipartimento di Ingegneria Civile-Ambientale e Architettura (DICAAR); Istituto per la Ricerca Sulle Acque (IRSA-CNR) (literal)

Titolo

• Start-up of a Granular sludge Sequencing Batch Reactor for the treatment of 2,4-dichlorophenol contaminated wastewater (literal)

Abstract

• Chlorophenols are characterized by high toxicity even at relatively low concentrations, strong tendency to bioaccumulate and persistency in water and soil. In this study, a Granular sludge Sequencing Batch Reactor (GSBR) was started-up for the biological aerobic treatment of wastewater containing 2,4-dichlorophenol (2,4-DCP), in presence of readily biodegradable sodium acetate (NaAc) as the biogenic substrate. Different influent concentrations of NaAc (420-800 mg/L) and 2,4-DCP (0-20 mg/L), as well as different operating conditions (i.e. cycle length) were tested in order to determine the optimal strategy for successful GSBR start-up: stable granulation and complete 2,4-DCP removal with stoichiometric chloride release (indicating the complete dechlorination of the toxic compound) were achieved only when high NaAc influent concentration and volumetric organic loading rates (800 mg/L and 1.9 kgCOD/m3?d, respectively), prolonged reaction phase (cycle time of 4 hours) and gradual increase of 2,4-DCP concentration in the influent up to 20 mg/L were applied, thus providing useful information for process optimization in view of future scale-up. Granules were initially colonised by fungi which disappeared throughout the experimental activity, and complete 2,4-DCP removal was mostly due to bacterial activity. (literal)

Prodotto di

• Sviluppo di tecnologie di \"soil washing\"; valutazione del \"rischio amianto\" (TA.P07.014.002) (Modulo)
• Institute of environmental geology and geoengineering (IGAG) (Istituto)

Autore CNR

• ALESSANDRA CARUCCI (Unità di personale esterno)
• SIMONA ROSSETTI (Persona)
• STEFANO MILIA (Unità di personale interno)

Insieme di parole chiave

• Parole chiave di "Start-up of a Granular sludge Sequencing Batch Reactor for the treatment of 2,4-dichlorophenol contaminated wastewater" (Insieme di parole chiave)

Incoming links:

Prodotto

• Institute of environmental geology and geoengineering (IGAG) (Istituto)
• Sviluppo di tecnologie di \"soil washing\"; valutazione del \"rischio amianto\" (TA.P07.014.002) (Modulo)

Autore CNR di

• SIMONA ROSSETTI (Persona)
• ALESSANDRA CARUCCI (Unità di personale esterno)
• STEFANO MILIA (Unità di personale interno)

Insieme di parole chiave di

• Parole chiave di "Start-up of a Granular sludge Sequencing Batch Reactor for the treatment of 2,4-dichlorophenol contaminated wastewater" (Insieme di parole chiave)