Results obtained from three aerobic granular sludge reactors treating brewery wastewater are presented. Reactors were operated for 60 d days in each of the two periods under different cycle duration: (Period I) short 6 h cycle, and (Period II) long 12 h cycle. Organic loading rates (OLR) varying from 0.7 kg COD m−3 d−1 to 4.1 kg COD m−3 d−1 were tested. During Period I, granules successfully developed in all reactors, however, results revealed that the feast and famine periods were not balanced and the granular structure deteriorated and became irregular. During Period II at decreased 12 h cycle time, granules were observed to develop again with superior structural stability compared to the short 6 h cycle time, suggesting that a longer starvation phase enhanced production of proteinaceous EPS. Overall, the extended famine conditions encouraged granule stability, likely because long starvation period favours bacteria capable of storage of energy compounds. © 2016

Effect of extended famine conditions on aerobic granular sludge stability in the treatment of brewery wastewater / Corsino, Santo Fabio; di Biase, Alessandro; Devlin, Tanner Ryan; Munz, Giulio; Torregrossa, Michele; Oleszkiewicz, Jan A.. - In: BIORESOURCE TECHNOLOGY. - ISSN 0960-8524. - STAMPA. - 226:(2017), pp. 150-157. [10.1016/j.biortech.2016.12.026]

Effect of extended famine conditions on aerobic granular sludge stability in the treatment of brewery wastewater

CORSINO, SANTO FABIO;MUNZ, GIULIO;
2017

Abstract

Results obtained from three aerobic granular sludge reactors treating brewery wastewater are presented. Reactors were operated for 60 d days in each of the two periods under different cycle duration: (Period I) short 6 h cycle, and (Period II) long 12 h cycle. Organic loading rates (OLR) varying from 0.7 kg COD m−3 d−1 to 4.1 kg COD m−3 d−1 were tested. During Period I, granules successfully developed in all reactors, however, results revealed that the feast and famine periods were not balanced and the granular structure deteriorated and became irregular. During Period II at decreased 12 h cycle time, granules were observed to develop again with superior structural stability compared to the short 6 h cycle time, suggesting that a longer starvation phase enhanced production of proteinaceous EPS. Overall, the extended famine conditions encouraged granule stability, likely because long starvation period favours bacteria capable of storage of energy compounds. © 2016
2017
226
150
157
Corsino, Santo Fabio; di Biase, Alessandro; Devlin, Tanner Ryan; Munz, Giulio; Torregrossa, Michele; Oleszkiewicz, Jan A.
File in questo prodotto:
File Dimensione Formato  
Biores Technol 2017 Corsino et al.pdf

Accesso chiuso

Descrizione: Articolo completo
Tipologia: Pdf editoriale (Version of record)
Licenza: Tutti i diritti riservati
Dimensione 997.71 kB
Formato Adobe PDF
997.71 kB Adobe PDF   Richiedi una copia

I documenti in FLORE sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/1081944
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 82
  • ???jsp.display-item.citation.isi??? 71
social impact