Nitrification rates in activated sludge

Journal Article · Fri Oct 01 04:00:00 EDT 1982 · J. Environ. Eng. Div. (Am. Soc. Civ. Eng.); (United States)

OSTI ID:5837263

Sherrard, J H; Manning, D K; Smith, D A

Applies stoichiometric principles to nitrification in order to disprove the beliefs that the fraction of nitrifying bacteria present in an activated sludge population has a marked effect on nitrification rates and that the fraction of nitrifiers present is independent of mean cell residence time. Presents table of biokinetic coefficients for an example problem. Concludes that based on a stoichiometric analysis of the nitrification process at steady-state conditions: (1) for a given wastewater, the nitrifier fraction is not a constant and is dependent on the mean cell residence time and the COD:TKN ratio; and (2) the percentage of nitrifier present in an activated sludge biomass does not have an effect on the rate of nitrification.

• Research Organization: VPI and SU, Blacksburg, VA 24061
• OSTI ID: 5837263
• Journal Information: J. Environ. Eng. Div. (Am. Soc. Civ. Eng.); (United States), Journal Name: J. Environ. Eng. Div. (Am. Soc. Civ. Eng.); (United States); ISSN JEEGA
• Country of Publication: United States
• Language: English

Related Subjects

550200* -- Biochemistry
59 BASIC BIOLOGICAL SCIENCES
ACTIVATED SLUDGE PROCESS
BIOMASS
CHEMICAL REACTIONS
DESIGN
ENERGY SOURCES
HYDROGEN COMPOUNDS
LIQUID WASTES
MANAGEMENT
NITRIFICATION
OPERATION
OXYGEN COMPOUNDS
PROCESSING
RENEWABLE ENERGY SOURCES
STEADY-STATE CONDITIONS
STOICHIOMETRY
WASTE MANAGEMENT
WASTE PROCESSING
WASTE WATER
WASTES
WATER