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:Expanded granular sludge bed (EGSB) reactor
Medium:Carmine granular sludge
Culture taken from:Anaerobic granular sludge taken from a paper mill 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:34.82
HRT:6–0.3 h
NH4–N Influent conc(mg/L):494
NO2–N Influent conc(mg/L):522
SO4–S Influent conc(mg/L):nan
NH4–N Removal efficiency (%):94.68
NO2–N Removal efficiency (%):99.84
SO4-S Removal efficiency (%):nan
NLR kg-N/m3/d:77.84
NRR kg-N/m3/d:57.14
Major findings:Good nitrogen removal performance of the EGSB reactor. The effluent ammonium concentration met the Chinese integrated wastewater discharge standard (GB8978- 1996) in which the ammonium concentration should be lower than 15 mg N/L
Authors:Chen et al., 2011
Title:Performance of ANAMMOX-EGSB reactor
Pubmed link:None
Full research link:Link
Abstract:The nitrogen pollution has caused serious environmental problems. The main aims of the present study were to remove the nitrogen from wastewater through ANAMMOX (ANaerobic AMMonium OXidation) process, and let the effluent meet the discharge standard which was significant and advance in the field of ANAMMOX application which was also very important to the environmental protection and water recycling. This study reports the performance of ANAMMOX-EGSB (Expanded Granular Sludge Bed) reactor after feeding with synthetic wastewater. The results showed that the effluent ammonium concentration was 11.90 mg N/L and the nitrogen remove efficiency (NRE) reached up to 94.68% when the volumetric nitrogen loading rate (NLR) and volumetric nitrogen removal rate (NRR) were as high as 27.31 and 25.86 kg N/(m3·d), respectively. The effluent ammonium concentration meets the Chinese integrated wastewater discharge standard (GB8978-1996) in which the ammonium concentration should be lower than 15 mg N/L. The maximum ammonium, nitrite and nitrogen conversion rates (qmax) by the ANAMMOX granular sludge in the reactor were 907.13, 841.76, 1810.10 mg N/(g VSS·d) and half saturation constants (KS) were 2.69, 0.44, 3.11 mg N/L, respectively.