Microcalorimetric and manometric tests to assess anammox activity.
The present study compares two experimental methods to evaluate Anammox activity based on the assessment of (1) the N(2) production rate by a manometric device, as previously proposed, and (2) the heat production rate by a microcalorimeter. Two samples of Anammox suspended biomass were taken from a pilot-plant, and their specific Anammox activity measured by both techniques. Both methods were successfully applied. As for calorimetric tests, they were performed for the first time on Anammox enriched sludge samples. Comparisons between the specific Anammox activities estimated by manometry and calorimetry and between expected (from the reaction enthalpy) and measured heat productions were performed. Promising results were obtained.
Scaglione
D
D
Politecnico di Milano, DIIAR, Piazza L. da Vinci 32, 20133 Milano, Italy. davide.scaglione@mail.polimi.it
Buttiglieri
G
G
Ficara
E
E
Caffaz
S
S
Lubello
C
C
Malpei
F
F
D000693:Anaerobiosis; D001419:Bacteria / Q000378:metabolism*; D019149:Bioreactors / Q000382:microbiology; D002151:Calorimetry / Q000379:methods*; D008365:Manometry / Q000379:methods*; D010084:Oxidation-Reduction; D010865:Pilot Projects; D000644:Quaternary Ammonium Compounds / Q000378:metabolism*; D014865:Waste Disposal, Fluid / Q000379:methods; D014874:Water Pollutants, Chemical / Q000378:metabolism; D018508:Water Purification / Q000379:methods
D000644:Quaternary Ammonium Compounds; D014874:Water Pollutants, Chemical