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:Up Flow - Anaerobic Sludge Blanket Reactor (UASB) reactor
Medium:Granular sludge
Culture taken from:Nitrifying granular sludges taken from an airlift nitrifying granular sludge bed reactor
Microorganism cultured:nan
Respiration:Anaerobic
Electron donor:Ammonium
Electron acceptor:Nitrite
PH:7.6
Maximum sludge concentration:31.6
HRT:6 h
NH4–N Influent conc(mg/L):511*
NO2–N Influent conc(mg/L):551*
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:105*
NRR kg-N/m3/d:nan
Major findings:Nitrifying granular sludge could serve as seeding sludge to start up Anammox reactor. During the operation , the nitrifying granular sludge was gradually converted into Anammox granular sludge with good settling property and high conversion activity.
Authors:Zheng et al., 2004
Title:Performance of Anammox granular sludge bed reactor started up with nitrifying granular sludge
Pubmed link:Link
Full research link:Link
Abstract:The anaerobic ammonia oxidation (Anammox) granular sludge bed reactor was started up successfully with nitrifying granular sludge. During the operation, the nitrifying granular sludge was gradually converted into Anammox granular sludge with good settling property and high conversion activity. The Anammox reactor worked well with the shortest HRT of 2.43 h. Under the condition that HRT was 6.39 h and influent concentration of ammonia and nitrite was 10 mmol/L, the removal of ammonia and nitrite was 97.17% and 100.00%, respectively. Corresponding volumetric total nitrogen loading rate and volumetric total nitrogen conversion rate were 100.83 mmol/(L x d) and 98.95 mmol/(L x d). The performance of Anammox reactor was efficient and stable.