Scheda di dettaglio – i prodotti della ricerca
| Dato | Valore |
|---|---|
| Title | Tannery wastewater treatment by periodic biofilm system: process performances and biofilm characterisation |
| Abstract | The paper reports the results obtained treating real tannery wastewater by a integrated process in which ozone was dosed in the recirculation stream of a periodic submerged filters (SBBR). Process performances resulted very satisfactory with COD, ammonia and TSS average removals, (96%), (99%) and (98%) respectively. The process was characterized by very low specific sludge production (0.05 kgVSS/kgCODremoved). Biomass in the SBBR, that has grown as granules, was characterised by different measurements (biomass concentration, extracellular polymeric substances, cellular protein and biomass density). Biomass density resulted very high, i.e. 170 gTSS/Lbiomass, and this permitted to achieve a biomass concentration such high such as 40 gTSS/Lbed. Such biomass concentration didn't cause any decrease of biomass metabolic activity as proved by its high total protein content (40% of organic matter), a parameter frequently used as an indicator of microorganisms activity. |
| Source | Simposio Internazionale Di Ingegneria Sanitaria Ambientale- SIDISA 2004, Taormina, 23-26 Giugno 2004 |
| Keywords | Tannery wastewaterSBBRozonationaerobic granulation. |
| Year | 2004 |
| Type | Contributo in atti di convegno |
| Authors | Di Iaconi C.(1), Lopez A.(2), Ramadori R.(3) |
| Text | 237465 2004 Tannery wastewater SBBR ozonation aerobic granulation. Tannery wastewater treatment by periodic biofilm system process performances and biofilm characterisation Di Iaconi C. 1 , Lopez A. 2 , Ramadori R. 3 CNR Istituto di Ricerca sulle Acque The paper reports the results obtained treating real tannery wastewater by a integrated process in which ozone was dosed in the recirculation stream of a periodic submerged filters SBBR . Process performances resulted very satisfactory with COD, ammonia and TSS average removals, 96% , 99% and 98% respectively. The process was characterized by very low specific sludge production 0.05 kgVSS/kgCODremoved . Biomass in the SBBR, that has grown as granules, was characterised by different measurements biomass concentration, extracellular polymeric substances, cellular protein and biomass density . Biomass density resulted very high, i.e. 170 gTSS/Lbiomass, and this permitted to achieve a biomass concentration such high such as 40 gTSS/Lbed. Such biomass concentration didn t cause any decrease of biomass metabolic activity as proved by its high total protein content 40% of organic matter , a parameter frequently used as an indicator of microorganisms activity. 88 7850 000 3 Atti del Simposio Internazionale Di Ingegneria Sanitaria Ambientale SIDISA 2004, Taormina Italia, 23 26 Giugno 2004, vol. CD rom, paper n. 022, ISBN 88 7850 000 3 cd rom Simposio Internazionale Di Ingegneria Sanitaria Ambientale SIDISA 2004 Taormina 23 26 Giugno 2004 Nazionale Contributo Contributo in atti di convegno claudio.diiaconi DI IACONI CLAUDIO antonio.lopez LOPEZ ANTONIO roberto.ramadori RAMADORI ROBERTO |