Scheda di dettaglio – i prodotti della ricerca
| Dato | Valore |
|---|---|
| Title | Efficacy of methanogenic biomass acclimation in mesophilic anaerobic digestion of ultrasound pretreated sludge. |
| Abstract | Methanogenic biomass plays a key role with regard to methane production during anaerobic bioconversion of organic substrates. In this study, the effect of two different acclimated inocula on digestion performances was investigated by means of anaerobic batch tests on untreated and sonicated waste-activated sludge. Organics solubilization and removal kinetics, the abundance and physiological conditions of archaeal cells on ultimate methane yield were evaluated. The simultaneous presence of Methanosarcina and Methanosaeta in the archaeal biomass, the higher initial archaeal cells relative abundance and their occurrence in the aggregated forms were the main factors positively affecting the conversion into methane. The presence of the acclimated inoculum at the start-up influenced positively the methane improvement due to sonication, and the methane-specific production increased from 0.335±0.03 to 0.420±0.05 Nm3/kg VSfed. Moreover, the better physiological state of methanogens permitted to appreciate the effect of hydrolysis improvement by ultrasound pretreatment. |
| Source | Environmental technology 39 (10), pp. 1–1250 |
| Keywords | digestione anaerobicainoculofanghi di depurazionesonicazione |
| Journal | Environmental technology |
| Editor | Taylor & Francis, Abingdon, Regno Unito |
| Year | 2018 |
| Type | Articolo in rivista |
| DOI | 10.1080/09593330.2017.1327555 |
| Authors | Gagliano, M C; Gallipoli, A; Rossetti, S; Braguglia, C M |
| Text | 372201 2018 10.1080/09593330.2017.1327555 ISI Web of Science WOS 28475436 digestione anaerobica inoculo fanghi di depurazione sonicazione Efficacy of methanogenic biomass acclimation in mesophilic anaerobic digestion of ultrasound pretreated sludge. Gagliano, M C; Gallipoli, A; Rossetti, S; Braguglia, C M Istituto di Ricerca sulle Acque CNR , Area della Ricerca RM1 , Roma , Italy. Methanogenic biomass plays a key role with regard to methane production during anaerobic bioconversion of organic substrates. In this study, the effect of two different acclimated inocula on digestion performances was investigated by means of anaerobic batch tests on untreated and sonicated waste activated sludge. Organics solubilization and removal kinetics, the abundance and physiological conditions of archaeal cells on ultimate methane yield were evaluated. The simultaneous presence of Methanosarcina and Methanosaeta in the archaeal biomass, the higher initial archaeal cells relative abundance and their occurrence in the aggregated forms were the main factors positively affecting the conversion into methane. The presence of the acclimated inoculum at the start up influenced positively the methane improvement due to sonication, and the methane specific production increased from 0.335±0.03 to 0.420±0.05 Nm3/kg VSfed. Moreover, the better physiological state of methanogens permitted to appreciate the effect of hydrolysis improvement by ultrasound pretreatment. 39 Published version Efficacy of methanogenic biomass acclimation in mesophilic anaerobic digestion of ultrasound pretreated sludge Efficacy of methanogenic biomass acclimation in mesophilic anaerobic digestion of ultrasound pretreated sludge 1 .pdf Articolo in rivista Taylor Francis 0959 3330 Environmental technology Environmental technology Environ. technol. Environmental technology. GAGLIANO MARIA CRISTINA simona.rossetti ROSSETTI SIMONA camillamaria.braguglia BRAGUGLIA CAMILLA MARIA agata.gallipoli GALLIPOLI AGATA ROUTES Novel processing routes for effective sewage sludge management TA.P07.001.005 Recupero di risorse da rifiuti e biomasse |