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

Biological nitrogen removal using a vertically moving biofilm system.

Michael Rodgers1, Xin-Min Zhan

  • 1Department of Civil Engineering, National University of Ireland, Galway, Ireland.

Bioresource Technology
|April 6, 2004
PubMed
Summary

This study demonstrates a vertically moving biofilm system for effective biological nitrogen removal from wastewater. The innovative system achieved high carbonaceous and total nitrogen removal efficiencies at low temperatures.

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

First-in-New Zealand RAMIO: launching a robotic oesophago-gastric surgery programme in a general surgical unit.

The New Zealand medical journal·2026
Same author

Gastric cardia submucosal tumours - histopathological diagnosis and challenges in management.

ANZ journal of surgery·2024
Same author

Description and results of a new method for assessing real-life performance of a UV-C disinfection robot.

Infection prevention in practice·2023
Same author

Artificial Sweetener Enhances the Spread of Antibiotic Resistance Genes During Anaerobic Digestion.

Environmental science & technology·2023
Same author

A framework for localizing global climate solutions and their carbon reduction potential.

Proceedings of the National Academy of Sciences of the United States of America·2021
Same author

Hidden work in hepatopancreaticobiliary surgery: the contemporary demands of non-operative patient management.

HPB : the official journal of the International Hepato Pancreato Biliary Association·2021

Area of Science:

  • Environmental Engineering
  • Wastewater Treatment
  • Microbiology

Background:

  • Biological nitrogen removal is crucial for wastewater treatment.
  • Conventional systems face challenges with efficiency and operational complexity.
  • Biofilm systems offer a promising alternative for enhanced biological processes.

Purpose of the Study:

  • To evaluate a novel vertically moving biofilm system for biological nitrogen removal.
  • To assess the system's performance in treating synthetic wastewater under controlled conditions.
  • To determine carbonaceous removal, denitrification, and nitrification efficiencies.

Main Methods:

  • A multi-unit system with vertically moving plastic biofilm modules was employed.
  • The system included pre-denitrification, combined carbonaceous removal/nitrification, and nitrification units.

Related Experiment Videos

  • Experiments were conducted at 11°C with varying recirculation ratios and influent loadings.

    • Main Results:

    • Carbonaceous removal efficiency ranged from 94-96%.
    • Total nitrogen removal efficiency was 77-82%.
    • High denitrification (94-98%) and nitrification (up to 95%) efficiencies were achieved.

    Conclusions:

    • The vertically moving biofilm system is effective for biological nitrogen removal.
    • The system demonstrates high removal efficiencies for carbon and nitrogen compounds.
    • This technology shows potential for efficient wastewater treatment, even at low temperatures.