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:Sulfur-driven denitrification
Denitrifying reactor:Packed-bed
Medium:Granular elemental sulfur
Culture taken from:Oxidation pond sediment
Organism (s) cultured:nan
Respiration:Anaerobic
Electron donor:Sulphur
Electron acceptor:Nitrate
Input NO3-N (mg/l):240
Nitrate removal rate (mg NO3-N/l/h):0.6
Denitrification rate (gNO3-N removed/m3/day):200
Microorganisms identified:nan
Molecular tools:nan
Major findings:Due to its low cost, elemental sulfur is an attractive source of energy for biological denitrification of nitrate contaminated groundwater. The process presented in this study is extremely simple, stable and easy to maintain.
Authors:Soares., 2002
Title:Denitrification of groundwater with elemental sulfur
Pubmed link:Link
Full research link:Link
Abstract:Autotrophic denitrification was studied in laboratory columns packed with granular elemental sulfur only and operated in an upflow mode. Soluble inorganic carbon, sodium bicarbonate, was supplied as source of carbon for microbial growth. Denitrification rates of up to 0.20 kg N removed m?3 d?1 were obtained at a hydraulic retention time of 1 h, and a nitrate loading of 0.24 kg N m?3 d?1. The process is extremely simple, stable and easy to maintain.