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Energies 2010, 3(5), 974-988; doi:10.3390/en3050974
Article

Simulation of the Impact of SRT on Anaerobic Digestability of Ultrasonicated Hog Manure

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Received: 26 March 2010; Accepted: 15 April 2010 / Published: 11 May 2010
Download PDF [231 KB, uploaded 11 May 2010]
Abstract: Ultrasonication 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.
Keywords: anaerobic digestion; SRT; ultrasound; hog manure; bound protein anaerobic digestion; SRT; ultrasound; hog manure; bound protein
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

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.

AMA Style

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.


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