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

Model for oxygen transfer in rotating biological contactor.

Vijay Kubsad1, Sanjeev Chaudhari, S K Gupta

  • 1Centre for Environmental Science and Engineering, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India.

Water Research
|November 24, 2004
PubMed
Summary

This study enhances oxygen transfer modeling for rotating biological contactors used in wastewater treatment. A modified Kim and Molof model accurately predicts oxygen transfer rates, improving treatment efficiency.

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

Characteristics of monoclonal antibodies against porcine zona pellucida-3 and their functional relevance.

Indian journal of experimental biology·1992
Same author

Simultaneous modeling of the pharmacokinetic and pharmacodynamic properties of enalkiren (Abbott-64662, a new renin inhibitor). I: Single dose study.

Drug metabolism and disposition: the biological fate of chemicals·1992
Same author

Myristoylation of the G alpha i2 polypeptide, a G protein alpha subunit, is required for its signaling and transformation functions.

Proceedings of the National Academy of Sciences of the United States of America·1992
Same author

Single daily dose of carbimazole in the treatment of hyperthyroidism.

The National medical journal of India·1992
Same author

Macrodystrophia lipomatosa: radiographic observations.

The British journal of radiology·1992
Same author

Mitogen-activated protein kinase activation resulting from selective oncogene expression in NIH 3T3 and rat 1a cells.

Proceedings of the National Academy of Sciences of the United States of America·1992

Area of Science:

  • Environmental Engineering
  • Chemical Engineering
  • Water Treatment Technologies

Background:

  • Rotating biological contactors (RBCs) are common in wastewater treatment.
  • Accurate oxygen transfer rates are crucial for RBC efficiency but poorly understood.
  • Existing models lack precision in predicting oxygen transfer in physical and biological systems.

Purpose of the Study:

  • To investigate oxygen transfer from air to water in a rotating disc air-liquid contactor.
  • To develop and validate an improved oxygen transfer model for RBC applications.
  • To compare the new model's performance against existing models.

Main Methods:

  • Modified the Kim and Molof oxygen transfer model.
  • Introduced a 'volume renewal number' to integrate physical parameters.

Related Experiment Videos

  • Calibrated the model using literature data and validated with experimental results.
  • Compared the modified model with other available models.

    • Main Results:

    • The modified Kim and Molof model achieved a coefficient of determination (R²) of 0.95.
    • This R² value is significantly higher than those of other models.
    • A simplified linear model relating K(L)a and volume renewal number was also proposed.
    • Both models accurately estimate the overall oxygen transfer coefficient (K(L)a).

    Conclusions:

    • The modified Kim and Molof model offers a more accurate estimation of oxygen transfer in RBC systems.
    • The proposed models provide valuable tools for optimizing RBC design and operation.
    • Improved oxygen transfer modeling can lead to enhanced wastewater treatment performance.