LAPSE:2019.1165
Published Article
LAPSE:2019.1165
Effect of Hydrothermal Pretreatment on Volatile Fatty Acids Production from Source-Separated Organics
Farokh laqa Kakar, Ehssan Hosseini Koupaie, Hisham Hafez, Elsayed Elbeshbishy
November 24, 2019
The current study investigates the effect of hydrothermal pretreatment (HTP) on acidification of source-separated organics (SSO) in terms of volatile fatty acids (VFAs) production and solubilization. Temperature and retention time for HTP of SSO ranged from 150 to 240 °C and 5 to 30 min, respectively. The soluble substance after hydrothermal pretreatment initially increased, reaching its peak at 210 °C and then declined gradually. The highest overall chemical oxygen demand (COD) solubilization of 63% was observed at “210 °C-20 min” compared to 17% for raw SSO. The highest VFAs yield of 1536 mg VFAs/g VSS added was observed at “210 °C-20 min” compared to 768 mg VFAs/g VSS for raw SSO. Intensification of hydrothermal pretreatment temperature beyond 210 °C resulted in the mineralization of the organics and adversely affected the process.
Keywords
acidification, dark fermentation, hydrothermal pretreatment, source-separated organics, volatile fatty acids
Subject
Suggested Citation
Kakar FL, Koupaie EH, Hafez H, Elbeshbishy E. Effect of Hydrothermal Pretreatment on Volatile Fatty Acids Production from Source-Separated Organics. (2019). LAPSE:2019.1165
Author Affiliations
Kakar FL: Environmental Research Group for Resource Recovery, Department of Civil Engineering, Faculty of Engineering, Architecture and Science, Ryerson University, 350 Victoria Street, Toronto, ON M5B 2K3, Canada
Koupaie EH: Environmental Research Group for Resource Recovery, Department of Civil Engineering, Faculty of Engineering, Architecture and Science, Ryerson University, 350 Victoria Street, Toronto, ON M5B 2K3, Canada
Hafez H: Environmental Research Group for Resource Recovery, Department of Civil Engineering, Faculty of Engineering, Architecture and Science, Ryerson University, 350 Victoria Street, Toronto, ON M5B 2K3, Canada; Greenfield Global, 275 Bloomfield Road, Chatham, O
Elbeshbishy E: Environmental Research Group for Resource Recovery, Department of Civil Engineering, Faculty of Engineering, Architecture and Science, Ryerson University, 350 Victoria Street, Toronto, ON M5B 2K3, Canada
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Journal Name
Processes
Volume
7
Issue
9
Article Number
E576
Year
2019
Publication Date
2019-09-01
Published Version
ISSN
2227-9717
Version Comments
Original Submission
Other Meta
PII: pr7090576, Publication Type: Journal Article
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LAPSE:2019.1165
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doi:10.3390/pr7090576
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Nov 24, 2019
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CC BY 4.0
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[v1] (Original Submission)
Nov 24, 2019
 
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Nov 24, 2019
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https://psecommunity.org/LAPSE:2019.1165
 
Original Submitter
Calvin Tsay
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