Skip to main navigation Skip to search Skip to main content

Factors influencing enrichment of anammox bacteria in baffled biofilters

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Anaerobic ammonium oxidation (anammox) is a shortcut for biological nitrogen removal which requires less oxygen and generates less biosolids. Two baffled biofilters packed with marble chips and mini marble chips respectively were operated to diagnose the factors influencing anammox enrichment. Both of the biofilters had anaerobic conditions (dissolved oxygen <0.3 mg L -1) and slight alkaline pH (7.24-7.99), which were suitable for anammox. Mass balance analysis suggested coexistence of nitrification and anammox. Scanning electron microscopic images showed thin biofilms attached to the marble chips. A lower nitrite concentration (≤8.6 mg N L-1) and short hydraulic retention time (≤2 d) were found to be favorable for enrichment of anammox in the passive baffled biofilters.

Original languageEnglish
Title of host publicationAmerican Society of Agricultural and Biological Engineers Annual International Meeting 2010, ASABE 2010
PublisherAmerican Society of Agricultural and Biological Engineers
Pages4694-4700
Number of pages7
ISBN (Print)9781617388354
StatePublished - 2010

Publication series

NameAmerican Society of Agricultural and Biological Engineers Annual International Meeting 2010, ASABE 2010
Volume6

Keywords

  • Anammox
  • Biofilms
  • Biofilter
  • Nitrogen removal
  • Scanning electron microscopy

Fingerprint

Dive into the research topics of 'Factors influencing enrichment of anammox bacteria in baffled biofilters'. Together they form a unique fingerprint.

Cite this