Scheda di dettaglio – i prodotti della ricerca
| Dato | Valore |
|---|---|
| Title | ZERO NET GROWTH IN A MEMBRANE BIOREACTOR WITH COMPLETE SLUDGE RETENTION |
| Abstract | A bench-scale membrane bioreactor was operated with complete sludge retention in order to evaluate biological processes and biomass characteristics over the long term. The investigation was carried out by feeding a bench-scale plant with real sewage under constant volumetric loading rate (VLR=1.2 gCOD Lreact-1 h-1). Biological processes were monitored by measuring substrate removal efficiencies and biomass-related parameters. The latter included bacterial activity as determined through respirometric tests specifically aimed at investigating long term heterotrophic and nitrifying activity. After about 180 days under the imposed operating conditions, the system reached equilibrium conditions with constant VSS concentration of 16-18 g L-1, organic loading rate (OLR) below 0.1 gCOD gVSS-1 d-1 and specific respiration rates of 2-3 mgO2 gVSS-1 h-1. These conditions were maintained for more than 150 days, confirming that an equilibrium had been achieved between biomass growth, endogenous metabolism, and solubilization of inorganic materials. |
| Source | Water research (Oxf.) 39 (20), pp. 5241–5249 |
| Keywords | Biomass activityComplete sludge retentionMembrane bioreactorsMunicipal wastewater |
| Journal | Water research (Oxf.) |
| Editor | Pergamon Press., New York, Regno Unito |
| Year | 2005 |
| Type | Articolo in rivista |
| DOI | 10.1016/j.watres.2005.10.010 |
| Authors | LAERA G., POLLICE A., SATURNO D., GIORDANO C., LOPEZ A. |
| Text | 42177 2005 10.1016/j.watres.2005.10.010 ISI Web of Science WOS 000234442600039 Biomass activity Complete sludge retention Membrane bioreactors Municipal wastewater ZERO NET GROWTH IN A MEMBRANE BIOREACTOR WITH COMPLETE SLUDGE RETENTION LAERA G., POLLICE A., SATURNO D., GIORDANO C., LOPEZ A. CNR Istituto di Ricerca Sulle Acque, Viale F. De Blasio 5, 70132 Bari, Italy A bench scale membrane bioreactor was operated with complete sludge retention in order to evaluate biological processes and biomass characteristics over the long term. The investigation was carried out by feeding a bench scale plant with real sewage under constant volumetric loading rate VLR=1.2 gCOD Lreact 1 h 1 . Biological processes were monitored by measuring substrate removal efficiencies and biomass related parameters. The latter included bacterial activity as determined through respirometric tests specifically aimed at investigating long term heterotrophic and nitrifying activity. After about 180 days under the imposed operating conditions, the system reached equilibrium conditions with constant VSS concentration of 16 18 g L 1, organic loading rate OLR below 0.1 gCOD gVSS 1 d 1 and specific respiration rates of 2 3 mgO2 gVSS 1 h 1. These conditions were maintained for more than 150 days, confirming that an equilibrium had been achieved between biomass growth, endogenous metabolism, and solubilization of inorganic materials. 39 http //www.sciencedirect.com/science/article/pii/S0043135405005828 Articolo pubblicato 2005_Wat_Res_39_5241_5249.pdf Articolo in rivista Pergamon Press. 0043 1354 Water research Oxf. Water research Oxf. Water res. Oxf. Water research. Oxf. alfieri.pollice POLLICE ALFIERI giuseppe.laera LAERA GIUSEPPE antonio.lopez LOPEZ ANTONIO TA.P07.002.002 Sviluppo di nuovi processi di controllo dell inquinamento idrico. TA.P07.002.004 Processi biotecnologici e processi a membrana |