Scheda di dettaglio – i prodotti della ricerca
| Dato | Valore |
|---|---|
| Title | Effect of the anode feeding composition on the performance of a continuous-flow methane-producing microbial electrolysis cell |
| Abstract | A methane-producing microbial electrolysis cell (MEC) was continuously fed at the anode with a synthetic solution of soluble organic compounds simulating the composition of the soluble fraction of a municipal wastewater. The MEC performance was assessed at different anode potentials in terms of chemical oxygen demand (COD) removal efficiency, methane production, and energy efficiency. As a main result, about 72-80 % of the removed substrate was converted into current at the anode, and about 84-86 % of the current was converted into methane at the cathode. Moreover, even though both COD removed and methane production slightly decreased as the applied anode potential decreased, the energy efficiency (i.e., the energy recovered as methane with respect to the energy input into the system) increased from 54 to 63 %. Denaturing gradient gel electrophoresis (DGGE) analyses revealed a high diversity in the anodic bacterial community with the presence of both fermentative (Proteiniphilum acetatigenes and Petrimonas sulphurifila) and aerobic (Rhodococcus qingshengii) microorganisms, whereas only two microorganisms (Methanobrevibacter arboriphilus and Methanosarcina mazei), both assignable to methanogens, were observed in the cathodic community. |
| Source | Environmental Science and Pollution Research |
| Journal | Environmental Science and Pollution Research |
| Editor | , , |
| Year | 2014 |
| Type | Articolo in rivista |
| DOI | 10.1007/s11356-014-3158-3 |
| Authors | Marco Zeppilli, Marianna Villano, Federico Aulenta, Silvia Lampis, Giovanni Vallini, Mauro Majone |
| Text | 300485 2014 10.1007/s11356 014 3158 3 Effect of the anode feeding composition on the performance of a continuous flow methane producing microbial electrolysis cell Marco Zeppilli, Marianna Villano, Federico Aulenta, Silvia Lampis, Giovanni Vallini, Mauro Majone Sapienza University of Rome; National Research Council; University of Verona A methane producing microbial electrolysis cell MEC was continuously fed at the anode with a synthetic solution of soluble organic compounds simulating the composition of the soluble fraction of a municipal wastewater. The MEC performance was assessed at different anode potentials in terms of chemical oxygen demand COD removal efficiency, methane production, and energy efficiency. As a main result, about 72 80 % of the removed substrate was converted into current at the anode, and about 84 86 % of the current was converted into methane at the cathode. Moreover, even though both COD removed and methane production slightly decreased as the applied anode potential decreased, the energy efficiency i.e., the energy recovered as methane with respect to the energy input into the system increased from 54 to 63 %. Denaturing gradient gel electrophoresis DGGE analyses revealed a high diversity in the anodic bacterial community with the presence of both fermentative Proteiniphilum acetatigenes and Petrimonas sulphurifila and aerobic Rhodococcus qingshengii microorganisms, whereas only two microorganisms Methanobrevibacter arboriphilus and Methanosarcina mazei , both assignable to methanogens, were observed in the cathodic community. http //link.springer.com/article/10.1007%2Fs11356 014 3158 3 Articolo in rivista Environmental Science and Pollution Research Environmental Science and Pollution Research federico.aulenta AULENTA FEDERICO TA.P07.017.002 Processi Aerobici e di Dealogenazione Riduttiva per la rimozione dei contaminanti dalle acque |