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

Elsayed Elbeshbishy, Angel Nakevski, Hisham Hafez, Madhumita Ray and George Nakhla
Additional contact information
Elsayed Elbeshbishy: Department of Civil and Environmental Engineering, University of Western Ontario, London, Ontario N6A 5B9, Canada
Angel Nakevski: Department of Chemical and Biochemical Engineering, University of Western Ontario, London, Ontario N6A 5B9, Canada
Hisham Hafez: Department of Civil and Environmental Engineering, University of Western Ontario, London, Ontario N6A 5B9, Canada
Madhumita Ray: Department of Chemical and Biochemical Engineering, University of Western Ontario, London, Ontario N6A 5B9, Canada
George Nakhla: Department of Civil and Environmental Engineering, University of Western Ontario, London, Ontario N6A 5B9, Canada

Energies, 2010, vol. 3, issue 5, 1-15

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 H 2 S 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 (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2010
References: View complete reference list from CitEc
Citations: View citations in EconPapers (3)

Downloads: (external link)
https://www.mdpi.com/1996-1073/3/5/974/pdf (application/pdf)
https://www.mdpi.com/1996-1073/3/5/974/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:3:y:2010:i:5:p:974-988:d:8308

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().