| Title | Perbiof: an innovative technology for treating municipal wastewater. |
| Abstract | Conventional suspended biomass reactors (e.g. activated sludge systems) have the disadvantage of large area requirement and high surplus biomass production. This explains the great effort being made worldwide to find a replacement for conventional technologies, with innovative ones aimed at lower footprint, better operational flexibility and lower sludge production.
In such a contest, the Water Research Institute (IRSA) of the Italian National Research Council (CNR), has been developing a new technology (PERBIOF technology), based on a submerged biofilter that operates in a "fill and draw" mode, for treating wastewater pollutants featured by maximum efficiency and minimum sludge production.
PERBIOF technology combines the advantages of biofilters (i.e., higher biomass concentrations and greater organic loads) with those of periodic systems (i.e., greater flexibility and stability).
In addition, PERBIOF technology boasts a unique feature: the presence of aerobic granular biomass (Morgenroth et al., 1997; Beun et al., 1999; Etter et al., 2001; Beun et. al., 2002; Liu and Tay, 2002; De Kreuk and Van Loosdrecht, 2004; McSwain et al., 2004; De Kreuk et al., 2005; Liu et al., 2005). In fact, a large fraction of the biomass present in the system grows as granules characterised by very high density. In such a system, the granules are entrapped in the pores of a packing material (Di Iaconi et al., 2005) allowing a biomass concentration as high as 30-40 gTSS/Lbed to be achieved with interesting repercussions on sludge production.
IRSA has extensively applied this technology for treating at laboratory scale different wastewater types (Ramadori et al., 2006, Di Iaconi et al., 2006).
After such tests, a demonstrative plant was implemented with a grant of the European Commission by LIFE financial instrument (project: life05 ENV/IT/000868).
The present paper reports the results recorded during an experimental campaign (lasted about one year) for treating the primary effluent coming from the municipal WWTP (200,000 p.e.) of Bari, a town located in Apulia, a Southern Italy Region. |
| Source | 6th IWA (International Water Association) World Water Congress, Vienna, 8-12 September, 2008 |
| Year | 2008 |
| Type | Contributo in atti di convegno |
| Authors | C. Di Iaconi(°)*, G. Del Moro(°), R. Ramadori(*), A. Lopez(°) |
| Text | 305852 2008 Perbiof an innovative technology for treating municipal wastewater. C. Di Iaconi ° , G. Del Moro ° , R. Ramadori , A. Lopez ° Istituto di Ricerca Sulle Acque C.N.R ° Via F. De Blasio 5, Bari; Via Reno 1, Roma Italy Conventional suspended biomass reactors e.g. activated sludge systems have the disadvantage of large area requirement and high surplus biomass production. This explains the great effort being made worldwide to find a replacement for conventional technologies, with innovative ones aimed at lower footprint, better operational flexibility and lower sludge production. In such a contest, the Water Research Institute IRSA of the Italian National Research Council CNR , has been developing a new technology PERBIOF technology , based on a submerged biofilter that operates in a fill and draw mode, for treating wastewater pollutants featured by maximum efficiency and minimum sludge production. PERBIOF technology combines the advantages of biofilters i.e., higher biomass concentrations and greater organic loads with those of periodic systems i.e., greater flexibility and stability . In addition, PERBIOF technology boasts a unique feature the presence of aerobic granular biomass Morgenroth et al., 1997; Beun et al., 1999; Etter et al., 2001; Beun et. al., 2002; Liu and Tay, 2002; De Kreuk and Van Loosdrecht, 2004; McSwain et al., 2004; De Kreuk et al., 2005; Liu et al., 2005 . In fact, a large fraction of the biomass present in the system grows as granules characterised by very high density. In such a system, the granules are entrapped in the pores of a packing material Di Iaconi et al., 2005 allowing a biomass concentration as high as 30 40 gTSS/Lbed to be achieved with interesting repercussions on sludge production. IRSA has extensively applied this technology for treating at laboratory scale different wastewater types Ramadori et al., 2006, Di Iaconi et al., 2006 . After such tests, a demonstrative plant was implemented with a grant of the European Commission by LIFE financial instrument project life05 ENV/IT/000868 . The present paper reports the results recorded during an experimental campaign lasted about one year for treating the primary effluent coming from the municipal WWTP 200,000 p.e. of Bari, a town located in Apulia, a Southern Italy Region. 6th IWA International Water Association World Water Congress Vienna 8 12 September, 2008 Internazionale Contributo Contributo in atti di convegno guido.delmoro DEL MORO GUIDO claudio.diiaconi DI IACONI CLAUDIO antonio.lopez LOPEZ ANTONIO roberto.ramadori RAMADORI ROBERTO |
