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:Groundwater
Denitrification system:Chemoautotrophic hydrogenation denitrification
Denitrifying reactor:Continuous fixed bed catalytic reactor
Medium:Palladium (Pd)/granular activated carbon catalyst
Culture taken from:nan
Organism (s) cultured:nan
Respiration:Anaerobic
Electron donor:Electrolytic hydrogen
Electron acceptor:Nitrate
Input NO3-N (mg/l):nan
Nitrate removal rate (mg NO3-N/l/h):nan
Denitrification rate (gNO3-N removed/m3/day):nan
Microorganisms identified:nan
Molecular tools:nan
Major findings:High temperatures of between 70 °C to 80 °C resulted in a high nitrate removal rate.
Authors:Panaitescu et al., 2016
Title:Denitrification of Drinking Water by Hydrogenation over Pd Catalyst
Pubmed link:None
Full research link:Link
Abstract:Hydrogenation of nitrates from water was performed on 0.5%Pd / granular activated carbon catalyst, using a fixed bed catalytic reactor, in continuous systems. The content of nitrate in water was established by analyzes of groundwater samples from seven drilling wells in Magurele-Lipanesti County agricultural area. The reaction mixture was analyzed spectrophotometric and by measuring of pH. The catalyst was characterized by determining the Langmuir isotherm and textural characteristics. Conversion of nitrate at 70 and 80oC decrease with increasing of volume hourly space velocities of water with a similar slope. At a temperature of 55oC nitrate reduction reaction does not occur. The pH of the nitrate solution processed at 70 and 80°C was basic. LESS