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:Simultaneous nitrification, denitrification and phosphorus removal (SNDPR)
Anammox reactor:Aerobic granular sequencing batch reactors (AGSBR)
Medium:Aerobic granular sludge
Culture taken from:nan
Microorganism cultured:nan
Respiration:Aerobic
Electron donor:Ammonium chloride
Electron acceptor:Oxygen, Sodium nitrite, Potassium nitrate
PH:7.5
Ammonia removal rate:nan
Nitrate removal rate:nan
Ammonia Removal efficiency (%):0.8442
Nitrate Removal efficiency (%):0.915
Total Nitrogen Removal (%):nan
Carbon Source:Extracellular polymeric substances (EPS)
Final products:nan
Major findings:This study demonstrated that aeration intensity could be used to manipulate granule stability, thereby affecting reactor performance in applications.
Authors:Wang et al., 2018
Title:Simultaneous nitrification, denitrification and phosphorus removal in an aerobic granular sludge sequencing batch reactor with high dissolved oxygen: Effects of carbon to nitrogen ratios
Pubmed link:Link
Full research link:Link
Abstract:Simultaneous nitrification, denitrification and phosphorus removal (SNDPR) using aerobic granules is a promising approach in water treatment. The present work investigated the effects of influent carbon to nitrogen (N) ratios (20, 10, and 4) on the SNDPR performance in aerobic granular sequencing batch reactors (AGSBR) under high aeration rate. Results revealed that granules remained long-term stability when the DO concentration was 7-8 mg/L. With the decline of COD/N ratios, the denitrification efficiency was reduced due to the accumulation of nitrate, although the removal of COD and TP remained stable with good efficiency. Rising concentration of ammonia N led to the increase of PN/PS ratio of EPS as well as the protein types according to the results of 3D-EEM fluorescence spectroscopy. MiSeq pyrosequencing technology indicated that the decreasing ratio of COD/N under high DO concentration contributed to accumulation of GAOs and DNPAOs rather than PAOs.