Scheda di dettaglio – i prodotti della ricerca
| Dato | Valore |
|---|---|
| Title | WASTEWATER TREATMENT BY PERIODIC BIOFILTER CHARACTERIZED BY AEROBIC GRANULAR BIOMASS |
| Abstract | The paper reports the results of an experimental investigation aimed at evaluating the role of hydrodynamic conditions on generation and main properties of granular biomass grown under aerobic conditions in a periodic packed bed reactor. During the start-up period, the trend of the hydrodynamic shear forces, calculated by a methodology previous developed by authors, provided a key for explaining the process of biomass granulation. The granular biomass was characterized by a high density (i.e., 70-120 gVSS/L biomass ) that permitted to achieve a biomass concentration such high as 20-38 gVSS/L bed . The biomass density increased with the increase of shear forces. The EPS (Extracellular Polymeric Substances) content of the biomass (5-7% of the total organic matter) was not affected by hydrodynamic shear forces as well as the biomass protein content. Periodic packed bed reactor applied to a municipal wastewater showed performances very satisfactory with high efficiencies removal (around 90%) for both COD and ammonia, up to an applied organic loading value of 5.7 kgCOD/m(3)center dot d, and negligible sludge production |
| Source | Journal of Environmental Science and Health, Part A 41(9), pp. 1781–1792 |
| Keywords | aerobic granulationbiomass densityEPShydrodynamic shear forcesprotein content |
| Journal | Journal of Environmental Science and Health, Part A |
| Editor | Taylor & Francis, , |
| Year | 2006 |
| Type | Articolo in rivista |
| DOI | 10.1080/10934520600778960 |
| Authors | RAMADORI R., DI IACONI C., LOPEZ A., PASSINO R. |
| Text | 167150 2006 10.1080/10934520600778960 ISI Web of Science WOS WOS 000239150100003 aerobic granulation biomass density EPS hydrodynamic shear forces protein content WASTEWATER TREATMENT BY PERIODIC BIOFILTER CHARACTERIZED BY AEROBIC GRANULAR BIOMASS RAMADORI R., DI IACONI C., LOPEZ A., PASSINO R. CNR Istituto di Ricerca sulle Acque The paper reports the results of an experimental investigation aimed at evaluating the role of hydrodynamic conditions on generation and main properties of granular biomass grown under aerobic conditions in a periodic packed bed reactor. During the start up period, the trend of the hydrodynamic shear forces, calculated by a methodology previous developed by authors, provided a key for explaining the process of biomass granulation. The granular biomass was characterized by a high density i.e., 70 120 gVSS/L biomass that permitted to achieve a biomass concentration such high as 20 38 gVSS/L bed . The biomass density increased with the increase of shear forces. The EPS Extracellular Polymeric Substances content of the biomass 5 7% of the total organic matter was not affected by hydrodynamic shear forces as well as the biomass protein content. Periodic packed bed reactor applied to a municipal wastewater showed performances very satisfactory with high efficiencies removal around 90% for both COD and ammonia, up to an applied organic loading value of 5.7 kgCOD/m 3 center dot d, and negligible sludge production 41 9 Articolo pubblicato Ramadori_et_al_J_Environ_Sci_Health_2006.pdf Articolo in rivista Taylor Francis 1093 4529 Journal of Environmental Science and Health, Part A Journal of Environmental Science and Health, Part A PASSINO ROBERTO claudio.diiaconi DI IACONI CLAUDIO antonio.lopez LOPEZ ANTONIO roberto.ramadori RAMADORI ROBERTO TA.P07.001.001 Sviluppo di tecnologie depurative a regime non stazionario |