title: Denitrification with carbon addition--kinetic considerations.
abstract: The Blue Plains Advanced Wastewater Treatment Plant (Washington, D.C.) uses methanol as an external carbon source in a postdenitrification process, to achieve low effluent total nitrogen concentrations. This becomes more difficult in winter, at lower mixed liquor temperatures and higher flows, as a consequence of the kinetic behavior of the methanol-utilizing heterotrophs. The paper reports on an experimental batch test study conducted on Blue Plains postdenitrification sludge to investigate (1) the maximum specific growth rate of methanol-utilizing heterotrophs (Mu(METH)); (2) the temperature dependency of the growth rate; and (3) the efficacy of alternate substrates (ethanol, acetate, and sugar). A limited number of tests were conducted on sludge from two other treatment plants with methanol addition.
authors.affiliation: EnviroSim Associates Ltd., Flamborough, Ontario, Canada. dold@envirosim.com
authors.forename: P
authors.initials: P
authors.lastname: Dold
authors.forename: I
authors.initials: I
authors.lastname: Takács
authors.forename: Y
authors.initials: Y
authors.lastname: Mokhayeri
authors.forename: A
authors.initials: A
authors.lastname: Nichols
authors.forename: J
authors.initials: J
authors.lastname: Hinojosa
authors.forename: R
authors.initials: R
authors.lastname: Riffat
authors.forename: C
authors.initials: C
authors.lastname: Bott
authors.forename: W
authors.initials: W
authors.lastname: Bailey
authors.forename: S
authors.initials: S
authors.lastname: Murthy
mesh_terms: D000693:Anaerobiosis; D052836:Heterotrophic Processes; D020582:Hyphomicrobium / Q000254:growth & development / Q000378:metabolism*; D007700:Kinetics; D000432:Methanol / Q000378:metabolism*; D009584:Nitrogen / Q000378:metabolism*; D013696:Temperature; D014865:Waste Disposal, Fluid / Q000379:methods*
chemical_list: D009584:Nitrogen; D000432:Methanol