Biological Nitrogen Removal Database

A manually curated data resource for microbial nitrogen removal


Experimental setup

Influent:Piggery waste water treatment system

Anammox system:Simultaneous nitrification and denitrification (SND)

Anammox reactor:nan


Culture taken from:Swine manure effluent a

Microorganism cultured:Pseudomonas stutzeri YZN-001


Electron donor:Ammonium sulphate

Electron acceptor:Oxygen, Sodium nitrite, nitrate


Experimental Information

Ammonia removal rate:4.70 mg L-1 h-1

Nitrate removal rate:nan

Ammonia Removal efficiency (%):85.91

Nitrate Removal efficiency (%):nan

Total Nitrogen Removal (%):0.95

Carbon Source:Sodium succinate

Final products:Nitrogen, Nitrous oxide, Nitrite, Nitric oxide

Information about Article

Major findings:The strain has both heterotrophic nitrification and aerobic denitrification abilities and can also remove ammonium at low temperatures and in the domestic sewage.

Authors:Zhang et al., 2011

Title:Heterotrophic nitrification and aerobic denitrification by the bacterium Pseudomonas stutzeri YZN-001

Pubmed link:Link

Full research link:Link

Abstract:A strain YZN-001 was isolated from swine manure effluent and was identified as Pseudomonas stutzeri. It can utilise not only nitrate and nitrite, but also ammonium. The strain had the capability to fully remove as much as 275.08 mg L(-1) NO(3)(-)-N and 171.40 mg L(-1) NO(2)(-)-N under aerobic conditions. Furthermore, At 30°C, the utilization of ammonium is approximately 95% by 18 h with a similar level removed by 72 h and 2 weeks at 10 and 4°C, respectively. Triplicate sets of tightly sealed serum bottles were used to test the heterotrophic nitrifying ability of P. stutzeri YZN-001. The results showing that 39% of removed NH(4)(+)-N was completely oxidised to nitrogen gas by 18 h. Indicating that the strain has heterotrophic nitrification and aerobic denitrification abilities, with the notable ability to remove ammonium at low temperatures, demonstrating a potential using the strain for future application in waste water treatment.