Water Quality Model For Conjunctive Surface Groundwater System With List Of References

Author : Armando Ivo Perez
Publisher :
ISBN 13 :
Total Pages : 978 pages
Book Rating : 4.:/5 (139 download)

DOWNLOAD NOW!

Download or read book A Water Quality Model for a Conjunctive Surface-groundwater System written by Armando Ivo Perez and published by . This book was released on 1972 with total page 978 pages. Available in PDF, EPUB and Kindle. Book excerpt: Increasing pressures toward efficient decision-making in water pollution control are creating the need for improved pollutant routing models. Such mathematical models help determine cause and effect relationships between sources of pollutants and their ensuing concentrations at various locations in a basin. The availability of these relationships should, hopefully, promote the expenditure of economic resources where they are most needed. Consideration of water quality effects on a basin-wide basis involves the study of both flow and water quality processes occurring on the ground surface, in the unsaturated soil zone and in the saturated or groundwater zone. The objective of this study has been to improve already available formulations for the above processes and subsequently to develop the methodology for the interfacing the individual mathematical models. Specifically, the surface models considered herein were runoff and flow in surface bodies of water. Also used was a one-dimensional, unsteady-state, unsaturated flow formulation. In the groundwater category, a two-dimensional, steady-state model was utilized. A common approach was taken in modeling the surface, unsaturated flow and groundwater phenomena: the flow or quantity aspects were considered first, followed by water quality aspects. At each time step, the magnitude and direction of flow at various physical locations were determined from hydrologic inputs and other boundary conditions. The calculated velocity field was then utilized as input to the water quality models, which simulated the movement of pollutants through the physical system. This sequential approach was necessary because certain water quality phenomena are affected by velocity. In this project, emphasis was placed on the modeling of agricultural pollution. For this reason, nitrogen and phosphorous were the main parameters considered. The selection of the Apopka basin in Central Florida as the study area was made in accordance with these project goals. However, the overall simulation model developed should be applicable to any basin. The results of this study should provide some insight to the area of data collection. Ultimately, the model could be used in the simulation and subsequent evaluation of different pollution abatement plans.