Simulation of the Impact of SRT on Anaerobic Digestability of Ultrasonicated Hog Manure
AbstractUltrasonication at a specific energy of 500 kJ/kgTS was applied to hog manure in a continuous mode completely mixed anaerobic digestion. A process model in BioWin was developed, calibrated and tested at different solids retention times (SRTs) to evaluate the process economics. The results showed that there was a 36% increase in volatile suspended solids (VSS) removal efficiency, a 20% increase in methane production rate, a 13.5% increase in destruction of bound proteins, and a reduction from 988 to 566 ppm in H2S concentration in the digester headspace. Furthermore, a calibrated model of the process using BioWin to assess the impact of SRTs on the economics of anaerobic digestion for unsonicated and sonicated hog manure revealed that ultrasonication resulted in a net benefit of $42–46/ton dry solids at SRTs of 15–30 days.
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Elbeshbishy, E.; Nakevski, A.; Hafez, H.; Ray, M.; Nakhla, G. Simulation of the Impact of SRT on Anaerobic Digestability of Ultrasonicated Hog Manure. Energies 2010, 3, 974-988.
Elbeshbishy E, Nakevski A, Hafez H, Ray M, Nakhla G. Simulation of the Impact of SRT on Anaerobic Digestability of Ultrasonicated Hog Manure. Energies. 2010; 3(5):974-988.Chicago/Turabian Style
Elbeshbishy, Elsayed; Nakevski, Angel; Hafez, Hisham; Ray, Madhumita; Nakhla, George. 2010. "Simulation of the Impact of SRT on Anaerobic Digestability of Ultrasonicated Hog Manure." Energies 3, no. 5: 974-988.