Informations et ressources scientifiques
sur le développement des zones arides et semi-arides

Accueil du site → Master → Etats Unis → 1975 → Physicochemical transformations of sewage effluent releases in an ephemeral stream channel

University of Arizona (1975)

Physicochemical transformations of sewage effluent releases in an ephemeral stream channel

Sebenik, Paul Gregory

Titre : Physicochemical transformations of sewage effluent releases in an ephemeral stream channel

Auteur : Sebenik, Paul Gregory

Université de soutenance : University of Arizona

Grade : Master of Science (MS) 1975

Résumé
Hydraulic and physicochemical measurements were made on treated sewage effluent releases at established locations within the channel of an ephemeral stream, the Santa Cruz River of Southern Arizona. Water quality samples were taken in sequence so that incremental flows at different hydrograph stages could be traced as the effluent moved downstream. Hydrographs obtained from two H-L flumes were used to calibrate a modified kinematic wave model. Hydraulic parameters from the kinematic model and physicochemical measurements from water quality samples were combined together into a statistical-empirical kinetic model of nitrogen transformations which may occur in sewage effluent releases. There was fair agreement between the measured data and the nitrogen species values calculated with the model. Measured nitrogen species values indicated that the rate of nitrification in sewage effluent releases is related to flow distance and physical characteristics of the stream.

Présentation

Version intégrale (3,05 Mb)

Page publiée le 29 mars 2018