Influent:Swine wastewater
HN-AD system:Heterotrophic nitrification/aerobic denitrification
Reactor:Lab scale shaking flask batch
Medium:Suspended-sludge
Culture taken from:Swine manure compost
Microorganism cultured:Pseudomonas Stutzeri SDU10
Respiration:Aerobic
Electron donor:Acetate, citrate and succinate
Electron acceptor:Ammonium, Nitrate, Nitrite
PH:7
Temperature:30 °C
HRT:24–72 h
NH4–N Influent conc(mg/L):nan
NO2–N Influent conc(mg/L):nan
NO3–N Influent conc(mg/L):nan
NH4–N Effluent (mg N/L):nan
NO2–N Effluent (mg N/L):nan
NO3-N Effluent (mg N/L):nan
NH4–N removal rate mg/L/d:97.6%
NO2–N removal rate mg/L/d: 4.90
NO3-N removal rate mg/L/d:nan
TN Removal rate (mg N/L/d):97.6%
Authors:Chen et al., 2020
Title:Ammonium Removal by a Newly Isolated Heterotrophic Nitrification–Aerobic Denitrification Bacteria Pseudomonas Stutzeri SDU10 and Its Potential in Treatment of Piggery Wastewater
Pubmed link:None
Full research link:Link
Abstract:A strain SDU10 was isolated from swine manure compost and identified as Pseudomonas stutzeri SDU10. It demonstrated excellent capability in NH4+-N removal. Optimal conditions of NH4+-N removal were determined, which were sodium acetate as the optimal carbon source, carbon to nitrogen (C/N) ratio of 10, temperature of 30 °C, pH of 7.0. Especially, P. stutzeri SDU10 could remove high concentration NH4+-N of 1500.0 and 2000.0 mg/l in 120 h with the NH4+-N removal rates of 91.1% and 61.6%, respectively. In batch experiments, the highest NH4+-N removal rate of 97.6% and chemical oxygen demand (COD) removal rate of 94.2% were obtained at initial C/N ratio 10 during piggery wastewater treatment using P. stutzeri SDU10. Results showed that P. stutzeri SDU10 had the potential for treatment of wastewater of high NH4+-N concentration.