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:Upflow biofilter (UBF)
Medium:Three-dimensional-plastic media
Culture taken from:Activated sludge taken from a mesophilic digester of a municipal wastewater treatment plant
Microorganism cultured:nan
Respiration:Anaerobic
Electron donor:Ammonium sulfate ((NH4)2SO4)
Electron acceptor:Sodium Nitrite (NaNO2)
PH:7.5–8.0
Maximum sludge concentration:46.1
HRT:1 d
NH4–N Influent conc(mg/L):265
NO2–N Influent conc(mg/L):278
SO4–S Influent conc(mg/L):nan
NH4–N Removal efficiency (%):100
NO2–N Removal efficiency (%):100
SO4-S Removal efficiency (%):nan
NLR kg-N/m3/d:560^
NRR kg-N/m3/d:2.5
Major findings:Biokinetic models such as first-order, second-order and Stover–Kincannon models were applied for the anammox filter. Second-order model and Stover–Kincannon model gave higher correlation coefficients of 98.6% and 97.9%, respectively. Therefore, these models may be used in the design of the anammox filter.
Authors:Jin et al., 2008
Title:Performance comparison of two anammox reactors: SBR and UBF
Pubmed link:None
Full research link:Link
Abstract:The performance of two selected high rate anammox reactors, i.e. sequencing batch reactor (SBR) and an upflow biofilter (UBF) were compared operating them simultaneously at 30 °C. The sludge from anaerobic digester of a municipal wastewater treatment plant was used for inoculation and synthetic wastewater was fed to both reactors during the experiment. During start-up, the nitrogen loading rate (NLR) was increased gradually from an initial 140 to 560 mg/l day. The comparison of the performance revealed that the NLRs of SBR (2.7 g/l day) and UBF (2.5 g/l day) were far higher than those of the traditional nitrification/denitrification process. The biomass production of SBR outcompeted that of UBF. SBR took a longer time for start-up, i.e. about 57 days compared with 31 days of UBF. Moreover, SBR tolerated smaller pulse of substrate concentration and hydraulic load, showing a weaker stability compared with UBF.