The paper presents the results of a field gathering campaign carried out on two different pilot scale membrane bioreactor (MBR) systems, treating synthetic wastewater subject to a gradual increase of salinity. One was a conventional MBR system, while the other was a moving bed biofilm membrane bioreactor (MB-MBR), which combines suspended biomass and biofilm. Indeed, the presence of suspended carriers inside the bioreactor seems to give benefits due to the collisions between the circulating media and the membrane. The aim of the study was the comparison of two configurations in terms of biomass activity characterization and performance (pollutants removal and hydraulic behaviour). The results highlighted a significant biomass activity for both heterotrophic and autotrophic populations. Such behaviour was emphasized in MB-MBR system, likely due to the presence of biofilm attached on suspended sponge carriers, which is characterized by high retention times, thus improving through the "seeding" effect the nitrification ability of the whole system

Di Bella, G., Di Trapani, D., Freni, G., Torregrossa, M., Viviani, G. (2014). Analysis of biomass characteristics in MBR and MB-MBR systems fed with synthetic wastewater: Influence of a gradual salinity increase. CHEMICAL ENGINEERING TRANSACTIONS, 2014-06 [10.3303/CET1438075].

Analysis of biomass characteristics in MBR and MB-MBR systems fed with synthetic wastewater: Influence of a gradual salinity increase

DI TRAPANI, Daniele;TORREGROSSA, Michele;VIVIANI, Gaspare
2014

Abstract

The paper presents the results of a field gathering campaign carried out on two different pilot scale membrane bioreactor (MBR) systems, treating synthetic wastewater subject to a gradual increase of salinity. One was a conventional MBR system, while the other was a moving bed biofilm membrane bioreactor (MB-MBR), which combines suspended biomass and biofilm. Indeed, the presence of suspended carriers inside the bioreactor seems to give benefits due to the collisions between the circulating media and the membrane. The aim of the study was the comparison of two configurations in terms of biomass activity characterization and performance (pollutants removal and hydraulic behaviour). The results highlighted a significant biomass activity for both heterotrophic and autotrophic populations. Such behaviour was emphasized in MB-MBR system, likely due to the presence of biofilm attached on suspended sponge carriers, which is characterized by high retention times, thus improving through the "seeding" effect the nitrification ability of the whole system
Settore ICAR/03 - Ingegneria Sanitaria-Ambientale
Di Bella, G., Di Trapani, D., Freni, G., Torregrossa, M., Viviani, G. (2014). Analysis of biomass characteristics in MBR and MB-MBR systems fed with synthetic wastewater: Influence of a gradual salinity increase. CHEMICAL ENGINEERING TRANSACTIONS, 2014-06 [10.3303/CET1438075].
File in questo prodotto:
File Dimensione Formato  
075.pdf

Solo gestori archvio

Dimensione 992.99 kB
Formato Adobe PDF
992.99 kB Adobe PDF   Visualizza/Apri   Richiedi una copia
Analysis of biomass characteristics in MBR an MB-MBR ecc.-Di Bella et al. - 2014.pdf

accesso aperto

Dimensione 988.25 kB
Formato Adobe PDF
988.25 kB Adobe PDF Visualizza/Apri

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

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10447/101157
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 24
  • ???jsp.display-item.citation.isi??? 21
social impact