Kinetic Concepts for Measuring Microbial Rate Constants: Effects of Nutrients on Rate Constants
AUTOR(ES)
Paris, D. F.
RESUMO
We investigated the effect of preincubation of environmental waters amended with inorganic nutrients (nitrogen, phosphorus, and traces of iron and magnesium) on the kinetics of the microbial transformation of phenol, propanil, propyl ester of (2,4-dichlorophenoxy)acetic acid, methyl parathion, Ronnel, and methoxychlor in pond and river waters. No effect on the second-order rate constants for these compounds was observed, although there was an increase in the bacterial populations and the pseudo-first-order rate constants. The use of nutrient-amended waters could be a useful tool for estimating second-order rate constants for an expanded number of compounds. This technique would provide a larger data base for predicting the behavior of xenobiotic compounds in the environment by using currently available mathematical models.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=238850Documentos Relacionados
- Methane combustion kinetic rate constants determination: an ill-posed inverse problem analysis
- Kinetic Constants for Aerobic Growth of Microbial Populations Selected with Various Single Compounds and with Municipal Wastes as Substrates
- Effects of Nutrients on Specific Growth Rate of Bacterioplankton in Oligotrophic Lake Water Cultures †
- Estimation of kinetic rate constants from multi-channel recordings by a direct fit of the time series.
- KINETIC CONSTANTS OF THE INTERACTION BETWEEN MYOSIN AND ADENOSINETRIPHOSPHATE*
