Biological Nitrogen Removal Database

A manually curated data resource for microbial nitrogen removal


Detailed information

Microorganism

Bacillus sp. LY

Taxonomy
  • Phylum : Firmicutes
  • Class : Bacilli
  • Order :Bacillales
  • Family : Bacillaceae
  • Genus : Bacillus

Electron Acceptor

NO2-

Electron Donor

Various compounds

Information about Article

Reference:Zhao et al., 2010

Title:Nitrogen Removal Capability Through Simultaneous Heterotrophic Nitrification and Aerobic Denitrification by Bacillus Sp. LY

Pubmed ID:20450115

Pubmed link:Link

Full research link:Link

Abstract: The heterotrophic nitrification and aerobic denitrification capabilities of Bacillus sp. LY were investigated under the aerobic condition. The results indicate that Bacillus sp. LY is not only a heterotrophic nitrifier, but also an aerobic denitrifier. Experiments were carried out in an attempt to determine and quantify the contribution of heterotrophic nitrification and aerobic denitrification to total N removal. By taking the nitrogen balance under the culture condition of 41.1 mg/L of initial NH4 +‐N at a C/N ratio of 15 in 96 h, 8.0% of the initial NH4 +‐N still remained in the medium in the forms of hydroxylamine, nitrite, nitrate and organic N; 40.5% of NH4 +‐N was converted to biomass and 45.9% of NH4 +‐N was estimated to be finally removed in the formation of N2. This conversion of ammonium to N2 with the intermediate formation of N2O under the aerobic condition was confirmed by gas chromatography. Single step nitrogen removal by simultaneous heterotrophic nitrification and aerobic denitrification has great potential in wastewater treatment.

Biological Nitrogen Removal Database