Record Display for the EPA National Library Catalog


Main Title Physical and Mathematical Modeling of Nitrification in a Lotic System.
Author Malanchuk, J. L. ; Lassiter, R. R. ; Holm, H. W. ; Kollig, H. P. ; Quinlan, A. V. ;
CORP Author Environmental Research Lab., Athens, GA.
Year Published 1978
Report Number EPA/600/J-78/066;
Stock Number PB-289 657
Additional Subjects Nitrification ; Limnology ; Mathematical models ; Reaction kinetics ; Ammonia ; Dissolved gases ; Oxygen ; Carbon dioxide ; Nitrogen inorganic compounds ; Ecosystems ; Reprints
Library Call Number Additional Info Location Last
NTIS  PB-289 657 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 6p
A study of nitrification in a flowing experimental ecosystem was used to test a simple mathematical model. In the experiment, ammonia was introduced into the channel under varying flow and mixing conditions. Dissolved O2 and CO2, pH, and the inorganic nitrogen series (total ammonia, NO2-, and NO3-) were measured. The model assumed first order kinetics for transformation of the ammonia to NO3-. Stoichiometric coupling of nitrification was assumed. The model worked better for higher flows and turbulence levels and it was concluded that some of the simplifying assumptions that were not met were important at the low flow conditions.