Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Acceleration of mass transfer in methane-producing loop reactors

J C Van den Heuvel1, L H Vredenbregt, I Portegies-Zwart

  • 1University of Amsterdam, Department of Chemical Engineering, The Netherlands.

Antonie Van Leeuwenhoek
|January 1, 1995
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Location and limitation of cellulose production by Acetobacter xylinum established from oxygen profiles.

Journal of bioscience and bioengineering·2005
Same author

Intra-particle oxygen diffusion limitation in solid-state fermentation.

Biotechnology and bioengineering·2001
Same author

Biofilm thickness variability investigated with a laser triangulation sensor.

Biotechnology and bioengineering·2000
Same author

Diffusion coefficients of metabolites in active biofilms.

Biotechnology and bioengineering·1999
Same author

Microscale distribution of populations and activities of Nitrosospira and Nitrospira spp. along a macroscale gradient in a nitrifying bioreactor: quantification by in situ hybridization and the use of microsensors.

Applied and environmental microbiology·1999
Same author

Kinetics and performance of a co-immobilised system of amyloglucosidase and Zymomonas mobilis.

Biotechnology and bioengineering·1999
Same journal

Analysis of a collection of Escherichia coli isolates recovered from beach waters on the coast of the Río de la Plata in Montevideo.

Antonie van Leeuwenhoek·2026
Same journal

Spatiotemporal patterns of bacterial communities and their responses to environmental gradients in a river-reservoir system.

Antonie van Leeuwenhoek·2026
Same journal

Correction: Molecular characterization and green synthesis of iron oxide nanoparticles from Ureibacillus chungkukjangi for methylene blue degradation.

Antonie van Leeuwenhoek·2026
Same journal

Biochemical and computational characterization of a recombinant catalase from Kocuria rhizophila for degradation of hydrogen peroxide in textile wastewater.

Antonie van Leeuwenhoek·2026
Same journal

Pathogens in the bay: environmental Staphylococcus saprophyticus strains mirror clinical counterparts in virulence, biofilm formation, antimicrobial resistance, pathogenicity, and phage susceptibility.

Antonie van Leeuwenhoek·2026
Same journal

A proteome-driven strategy to discover novel therapeutic targets in Orientia tsutsugamushi.

Antonie van Leeuwenhoek·2026
See all related articles

Hydrostatic pressure oscillations in methanogenic granules create intraparticle liquid flows, enhancing mass transfer. This

Area of Science:

  • Biotechnology
  • Chemical Engineering
  • Environmental Science

Background:

  • Methanogenic granules are key in anaerobic digestion, but mass transfer limitations can reduce efficiency.
  • Recirculation in loop reactors can induce pressure oscillations.
  • Understanding intraparticle phenomena is crucial for optimizing biological and catalytic processes.

Purpose of the Study:

  • To investigate the effect of hydrostatic pressure oscillations on intraparticle liquid flows and mass transfer within methanogenic granules.
  • To demonstrate the 'breathing particle' concept in a model system.
  • To predict the potential enhancement of mass transfer in methanogenic loop reactors.

Main Methods:

  • Utilized a well-defined inorganic model system to simulate gas bubble behavior under pressure oscillations.

Related Experiment Videos

  • Employed a structured mathematical model to describe the observed experimental results.
  • Analyzed the impact of these oscillations on intraparticle liquid movement and mass transfer.

    • Main Results:

    • Demonstrated that pressure oscillations induce intraparticle liquid flows, leading to enhanced mass transfer beyond simple diffusion.
    • The 'breathing particle' concept was validated through experimental observations.
    • A structured mathematical model accurately described the experimental data.

    Conclusions:

    • Hydrostatic pressure oscillations significantly enhance mass transfer in gas-producing systems like methanogenic granules.
    • A predicted 30% improvement in mass transfer for methanogenic loop reactors under oscillating pressure conditions.
    • This approach offers promising avenues for improving heterogeneous catalysis and biological fermentations.