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

Advective flow and floc permeability.

G W Tsou1, R M Wu, P S Yen

  • 1Department of Chemical Engineering, National Taiwan University, Taipei, Taiwan, 106, Republic of China.

Journal of Colloid and Interface Science
|November 18, 2005
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

Baseline Gut Microbiome-Metabolome Signatures Are Associated with Drinking Severity and Reduction Following Dutasteride Treatment in Alcohol Use Disorder.

medRxiv : the preprint server for health sciences·2026
Same author

Development of a multi-channel mm-wave interferometer for the versatile experiment spherical torus (VEST).

The Review of scientific instruments·2025
Same author

The Ideal Physical Therapist from the Perspective of Individuals With Limb Loss.

Canadian prosthetics & orthotics journal·2024
Same author

Evaluation of non-additive genetic effects on carcass and meat quality traits in Korean Hanwoo cattle using genomic models.

Animal : an international journal of animal bioscience·2024
Same author

Functional ultrasound imaging of the human spinal cord.

Neuron·2024
Same author

Clinical and technical factors in endoscopic skull base surgery associated with reconstructive success.

Rhinology·2024
Same journal

Tris(vinyl dimethylsilyl) phosphate: Enhancing interface stability in high-voltage Li-ion batteries at elevated temperatures.

Journal of colloid and interface science·2026
Same journal

Electron-donor modulated built-in electric fields in Ni<sub>2</sub>P/MoS<sub>2</sub> Heterostructures for accelerated sodium storage kinetics.

Journal of colloid and interface science·2026
Same journal

Porous flexible structure mediated synergistic boost of built-in electric field and photothermal effect for enhanced photocatalysis.

Journal of colloid and interface science·2026
Same journal

Bi/Bi<sub>2</sub>Ce<sub>2</sub>O<sub>7</sub> heterojunctions for visible-light photocatalytic nitrogen fixation: Synergistic enhancement by localized surface plasmon resonance and oxygen vacancies.

Journal of colloid and interface science·2026
Same journal

Interface engineering of ultrathin nickel metallene on titanium dioxide nanosheets for efficient photocatalytic hydrogen evolution.

Journal of colloid and interface science·2026
Same journal

Magnetic Janus droplets as soft robots.

Journal of colloid and interface science·2026
See all related articles

Researchers tracked hydrogen bubbles to measure advection flow in sludge flocs. They found flow was 53% in original activated sludge flocs and 12% in flocculated flocs, revealing insights into floc permeability.

Area of Science:

  • Environmental Engineering
  • Fluid Dynamics
  • Biotechnology

Background:

  • Wastewater treatment relies on microbial flocs to remove pollutants.
  • Understanding fluid flow within flocs is crucial for optimizing treatment efficiency.
  • Advection flow significantly impacts floc structure and pollutant removal.

Purpose of the Study:

  • To quantify advection flow within activated sludge flocs using bubble tracking.
  • To estimate the interior permeability of sludge flocs based on flow measurements.
  • To analyze the fluid forces acting on a free-falling floc.

Main Methods:

  • Bubble tracking velocimetry was employed to monitor hydrogen bubble movement.
  • Advection flow extent was calculated for both original and flocculated sludge flocs.

Related Experiment Videos

  • Interior permeability was inferred from advection flow data.
  • Fluid forces on the falling floc were analyzed.

    • Main Results:

    • Advection flow was estimated at 53% for original activated sludge flocs.
    • Advection flow was significantly lower, at 12%, for flocculated flocs.
    • The study provided estimations of sludge floc interior permeability.

    Conclusions:

    • Advection flow is a key factor influencing sludge floc properties.
    • Flocculation processes can alter internal flow dynamics and permeability.
    • This method offers a novel approach to characterizing floc behavior in wastewater treatment.