Biological Nitrogen Removal Database
A manually curated data resource for microbial nitrogen removal
Biological Nitrogen Removal Database
A manually curated data resource for microbial nitrogen removal
Influent:Nitrogen containing wastewater
Anammox system:Simultaneous nitrification and denitrification (SND)
Anammox reactor:nan
Medium:nan
Culture taken from:Sediment
Microorganism cultured:Serratia marcescens W5
Respiration:Aerobic
Electron donor:Ammonium sulphate
Electron acceptor:Oxygen
PH:7.2–7.8
Ammonia removal rate:514.13 mg L-1 h-1
Nitrate removal rate:nan
Ammonia Removal efficiency (%):0.971
Nitrate Removal efficiency (%):0.5355
Total Nitrogen Removal (%):nan
Carbon Source:Sucrose
Final products:Hydroxylamine, Nitrite
Major findings:Results from the study implied W5 had a promising prospect of application in purifying excessively nitrogenous wastewater. Results showed W5 removed above 80% of ammonium in a wide range of pH (7–10) within 24 h. It exhibited a high nitrogen removal rate in high strength ammonium.
Authors:Wang et al., 2016
Title:Heterotrophic nitrogen removal by a newly-isolated alkalitolerant microorganism, Serratia marcescens W5
Pubmed link:Link
Full research link:Link
Abstract:A new microbe, Serratia marcescens W5 was successfully isolated. Its feasibility in purification of excessively nitrogen-containing wastewater was evaluated using inorganic nitrogen media. Single factor tests showed that W5 exhibited high ammonium removal rates (above 80%) under different culture conditions (pH 7–10, C/N ratios of 6–20, 15–35 °C, 0–2.5% of salinity, respectively). Besides various organic carbon sources, W5 was able to utilize calcium carbonate with 28.05% of ammonium removed. Further experiments indicated that W5 was capable of resisting high-strength ammonium (1200 mg/L) with the maximum removal rate of 514.13 mg L?1 d?1. The nitrogen removal pathway of W5 was also tested, showing that both nitrite and nitrate were efficiently removed only in the presence of ammonium, with hydroxylamine as intermediate, which was different from the conventional nitrogen removal pathway. All the results verified that W5 was a good candidate for the purification of excessively nitrogenous wastewater.