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:Synthetic wastewater
Anammox system:nan
Anammox reactor:Sequencing batch reactor (SBR) reactor
Medium:Granular ANAMMOX sludge
Culture taken from:Activated sludge from aerobic tank of wastewater treatment plant
Microorganism cultured:nan
Respiration:Anaerobic
Electron donor:Ammonium chloride NH4Cl
Electron acceptor:Sodium Nitrite (NaNO2)
PH:6.8–7.0
Maximum sludge concentration:nan
HRT:0.18 d
NH4–N Influent conc(mg/L):500
NO2–N Influent conc(mg/L):580
SO4–S Influent conc(mg/L):nan
NH4–N Removal efficiency (%):97
NO2–N Removal efficiency (%):97
SO4-S Removal efficiency (%):nan
NLR kg-N/m3/d:0.156
NRR kg-N/m3/d:nan
Major findings:Sludge selected from aerobic sludge treating municipal wastewater with endogenous-denitrification method could steadily react as anammox with a fairly moderate nitrogen load rate being obtained
Authors:Yuan et al., 2010
Title:Research on Enrichment for Anammox Bacteria Inoculated via Enhanced Endogenous Denitrification
Pubmed link:None
Full research link:Link
Abstract:The project of this study is to research the feasibility of anammox sludge enrichment with endogenous denitrification method and the characteristics of the enrichment anammox sludge. SBR was used as reactor which operation mode of continuously influent when operation would benefit for anammox reaction because of substrates dilution. Lower nitrogen concentrations and shorter operation periodic time would also benefit for the bacteria culture while at the same nitrogen load. The sludge selected from aerobic sludge treating municipal wastewater with endogenous-denitrification method could steadily react as anammox with the nitrogen load of 0.156kgN/m3(d. In this study the highest influent nitrogen concentrations were 500mgNH+44+-N/l and 580mgNO?22?-N/l, the removed NH+44+-N/ NO?22?-N ratio was 1:1.12 closely to the reported value, and sludge became red, which all indicated that endogenous-denitrification sludge could be adopted to anammox bacteria enrichment, and endogenous-denitrification method could be adopted to treating sludge digestive liquid. The research showed that SBR for anammox sludge enrichment was most stable to flow rate shock, but it was very sensitive to substrate shock because of nitrite inhibition.