2026-09-22T13:11:34Z https://www.ideals.illinois.edu/oai-pmh

oai:www.ideals.illinois.edu:2142/110750 2023-07-11 col_2142_5131 col_2142_14770 com_2142_5130 com_2142_3518 com_2142_234

anaerobic digestion wastewater treatment biogas biodegradability Guest, Jeremy S Kontos, George Andrew 2021-09-17T02:34:49Z 2021-09-17T02:34:49Z 2023-09-17T02:34:57Z 2021-04-29 2021-05 As efforts increase to shift energy sources away from fossil fuels, bioenergy has been identified as one potential mechanism to reduce the environmental impacts of liquid fuels. But to be able to realize the environmental benefits offered by bioenergy development requires cost competitiveness of biofuels and their coproducts. This study set out to improve biorefinery process economics and enable more robust techno-economic analyses (TEAs) through a focused analysis and evaluation of the wastewater treatment process and more specifically, the anaerobic treatment system design. To this effect, this study began with a comprehensive wastewater characterization and composition analysis to verify its suitability for digestion. From there the wastewater was further evaluated to determine potential methane yield, drawing upon a combination of literature-derived values and theoretical calculations. Finally, the results from the wastewater analysis were fed into the developed process model for the chosen anaerobic treatment technology. The internal circulation (IC) reactor, a high-rate anaerobic treatment system, was selected because of its unique ability to handle high-strength wastewaters consistent with biorefinery operations, while recovering energy and significantly reducing the system size and area required. This design and assessment of the anaerobic treatment system was based on the model corn stover biorefinery wastewater, but this process is generalizable for any such wastewater. The detailed and rigorous design process described in this study can help produce more robust biorefinery TEAs and could help advance the financial viability of biofuel production. Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2023-05-01 The student, George Kontos, accepted the attached license on 2021-04-29 at 09:49. The student, George Kontos, submitted this Thesis for approval on 2021-04-29 at 10:01. This Thesis was approved for publication on 2021-04-29 at 13:27. DSpace SAF Submission Ingestion Package generated from Vireo submission #16593 on 2021-09-16 at 17:06:30 Made available in DSpace on 2021-09-17T02:34:49Z (GMT). No. of bitstreams: 2 KONTOS-THESIS-2021.pdf: 636822 bytes, checksum: f9e158292c6c5dd73e3d1fff8d34ecf4 (MD5) LICENSE.txt: 4210 bytes, checksum: f0377e605adb40af75f3cd19a682e56e (MD5) Previous issue date: 2021-04-29 Embargo set by: Seth Robbins for item 118593 Lift date: 2023-09-17T02:34:57Z Reason: Author requested U of Illinois access only (OA after 2yrs) in Vireo ETD system Author requested U of Illinois access only (OA after 2yrs) in Vireo ETD system U of I Only application/pdf http://hdl.handle.net/2142/110750 en Copyright 2021 George Kontos biofuel lignocellulosic biomass Advanced anaerobic treatment for energy recovery and improved process economics in the management of biorefinery wastewaters text Thesis Civil & Environmental Eng Environ Engr in Civil Engr University of Illinois at Urbana-Champaign Thesis M.S.