Characterization and improvement of oxygen transfer in pilot plant external air-lift bioreactor for mycelial biomass production

dc.contributor.author Jin, Bo
dc.contributor.author Yu, Q.
dc.contributor.author van Leeuwen, Johannes
dc.contributor.author van Leeuwen, Johannes
dc.contributor.department Civil, Construction and Environmental Engineering
dc.date 2018-02-13T15:31:32.000
dc.date.accessioned 2020-06-30T01:13:38Z
dc.date.available 2020-06-30T01:13:38Z
dc.date.copyright Mon Jan 01 00:00:00 UTC 2001
dc.date.embargo 2013-10-04
dc.date.issued 2001-01-01
dc.description.abstract <p>The oxygen transfer dynamics in a pilot plant external air-lift bioreactor (EALB) during the cultivation of mycelial biomass were characterized with respect to hydrodynamic parameters of gas holdup (ε), oxygen transfer coefficient (KLa) and superficial gas velocity (<em>U</em> g), and dissolved oxygen (DO). An increased flow rate of air supply was required to meet the increased oxygen demand with mycelial biomass growth. Consequently, an increase in air flow rate led to an increase in ε, KLa and the DO level. The enhancement of oxygen transfer rate in the cultivated broth system, however, was limited with highly increased viscosity of the mycelial broth. An increase in air flow rate from 1.25 to 2.00 v/v/m resulted in a low increment of oxygen transfer. The newly designed pilot plant EALB with two air spargers significantly improved processing reliability, aeration rate and KLa. The pilot plant EALB process, operated under a top pressure from 0 to 1.0 bars, also demonstrated a significant improvement of oxygenation efficiency by more than 20% in DO and KLa. The performance of the two sparger EALB process under top pressure demonstrated an efficient and economical aerobic system with fast mycelial growth and high biomass productivity in mycelial biomass production and wastewater treatment.</p>
dc.description.comments <p>This article is from World Journal of Microbiology and Biotechnology 17 (2001): pp. 265—272, doi:<a href="http://dx.doi.org/10.1023/A:1016622413185" target="_blank">10.1023/A:1016622413185</a></p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/ccee_pubs/6/
dc.identifier.articleid 1005
dc.identifier.contextkey 4670604
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath ccee_pubs/6
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/13969
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/ccee_pubs/6/art_253A10.1023_252FA_253A1016622413185.pdf_auth66_1381081497_9ae3a7d02d5e033c1e6f682c2640a5ba_ext_.pdf|||Sat Jan 15 01:05:23 UTC 2022
dc.source.uri 10.1023/A:1016622413185
dc.subject.disciplines Civil and Environmental Engineering
dc.title Characterization and improvement of oxygen transfer in pilot plant external air-lift bioreactor for mycelial biomass production
dc.type article
dc.type.genre article
dspace.entity.type Publication
relation.isAuthorOfPublication 84ec2b92-91de-4198-aa2e-0fb2a091042d
relation.isOrgUnitOfPublication 933e9c94-323c-4da9-9e8e-861692825f91
File
Original bundle
Now showing 1 - 1 of 1
Name:
art_253A10.1023_252FA_253A1016622413185.pdf_auth66_1381081497_9ae3a7d02d5e033c1e6f682c2640a5ba_ext_.pdf
Size:
401.31 KB
Format:
Adobe Portable Document Format
Description:
Collections