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EnglishThe following study dealt with the application of the anaerobic co-digestion process for production of biohythane and volatile fatty acids (VFA). The aim of the paper is to investigate performances in a two-phase thermophilic anaerobic co-digestion process applied on waste activated sludge and biowaste. Hydrogen and methane production reached values of 29 l/kgTVS and 287 l CH4/kgTVS respectively when operating with a total hydraulic retention time of 19d (3d in the first phase and 16d in the second phase) and organic loading rates of 16 and 3 kg TVS/m3d, respectively. At the same time, RBCOD production was also investigated in order to consider an integrated approach on waste and wastewater cycles. Specific VFA production of 426 gVFA/kgTVSBIOWASTE was obtained from the first phase of the process. An overall assessment coming from the implementation of the approach on a 70.000 AE basin was also presented, based on pilot scale results obtained.
| Titolo: | Two phase anaerobic codigestion of organic waste and activated sludge: bench study and implementation potential in energy and material (VFA) recovery. |
| Autori: | |
| Data di pubblicazione: | 2014 |
| Abstract: | The following study dealt with the application of the anaerobic co-digestion process for production of biohythane and volatile fatty acids (VFA). The aim of the paper is to investigate performances in a two-phase thermophilic anaerobic co-digestion process applied on waste activated sludge and biowaste. Hydrogen and methane production reached values of 29 l/kgTVS and 287 l CH4/kgTVS respectively when operating with a total hydraulic retention time of 19d (3d in the first phase and 16d in the second phase) and organic loading rates of 16 and 3 kg TVS/m3d, respectively. At the same time, RBCOD production was also investigated in order to consider an integrated approach on waste and wastewater cycles. Specific VFA production of 426 gVFA/kgTVSBIOWASTE was obtained from the first phase of the process. An overall assessment coming from the implementation of the approach on a 70.000 AE basin was also presented, based on pilot scale results obtained. |
| Handle: | http://hdl.handle.net/11562/865176 |
| ISBN: | 9788869250002 |
| Appare nelle tipologie: | 04.01 Contributo in atti di convegno |
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