Biological Nitrogen Removal Database

A manually curated data resource for microbial nitrogen removal


Detailed information

Microorganism

Acinetobacter sp. Y1

Taxonomy
  • Phylum : Proteobacteria
  • Class : Gammaproteobacteria
  • Order :Pseudomonadales
  • Family : Moraxellaceae
  • Genus : Acinetobacter

Electron Acceptor

Oxygen; sodium pyruvate, sodium citrate and sodium acetate

Electron Donor

Ammonium sulfate (NH4)2SO4

Information about Article

Reference:Liu et al., 2015

Title:Heterotrophic nitrogen removal by Acinetobacter sp. Y1 isolated from coke plant wastewater

Pubmed ID:25910961.0

Pubmed link:Link

Full research link:Link

Abstract: A strain of Acinetobacter sp. Y1, which exhibited an amazing ability to remove ammonium, nitrite and nitrate, was isolated from the activated sludge of a coking wastewater treatment plant. The aim of this work was to study the ability, influence factors and possible pathway of nitrogen removal by Acinetobacter sp. Y1. Results showed that maximum removal rate of NH4+-N by the strain was 10.28 mg-N/L/h. Carbon source had significant influence on the growth and ammonium removal efficiencies of strain Y1. Pyruvate, citrate and acetate were favourable carbon sources for the strain. Temperature, pH value and shaking speed could affect the growth and nitrogen removal ability. Nitrate or nitrite could be used as a sole nitrogen source for the growth and removed efficiently by the strain. N2 levels increased to 53.74%, 50.21% and 55.13% within 36 h when 100 mg/L NH4+-N, NO2−-N or NO3− -N was used as sole nitrogen source in the gas detection experiment. The activities of hydroxylamine oxidoreductase (HAO), nitrate reductase (NR) and nitrite reductase (NiR), which are key enzymes in heterotrophic nitrification and aerobic denitrification, were all detectable in the strain. Consequently, a possible pathway for ammonium removal by the strain was also suggested.

Biological Nitrogen Removal Database