Experimental Study of Transverse Mixing of Pollutants in Trapezoidal Open Channel

Chapter

Abstract

Problems related to water mixing becoming more important, especially when it comes to evaluate the impact of a domestic, industrial or thermal discharge on the receiving stream. The need to predict the water quality according to the rate of the dispersion of pollutants has pushed researchers to develop several mixing models. These models, developed from the Advection–Dispersion Equation, are aimed to identify and predict the spatiotemporal evolution of the concentration of a given pollutant.

Since streams often have a much greater width than the depth; vertical mixing of pollutants is complete and transverse mixing is predominant. Away from the injection point; the problem becomes one-dimensional; is the longitudinal dispersion.

In this article, the transverse mixing problem has been studied in a trapezoidal channel, several concentration measurements in the longitudinal and lateral direction of the flow were performed, and for different scenarios of injections of pollutant in the channel, the results obtained show a great influence of the flow and quantity of pollutants on the transverse mixing phenomenon.

Keywords

Trapezoidal channel Pollution Transverse mixing Transport of pollutants Phenol 

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Copyright information

© Springer International Publishing Switzerland 2016

Authors and Affiliations

  1. 1.Research Laboratory of Water SciencesPolytechnic National School of AlgiersAlgiersAlgeria
  2. 2.Laboratory of Environment, Water, Geomechanics and Structures, Faculty of Civil Engineering (FGC)University of Sciences & Technology HouariBoumediene (USTHB)AlgiersAlgeria
  3. 3.Scientific and Technical Research Center on Physical and Chemical Analyses (CRAPC)Bou-IsmailAlgeria

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