Analysis of liquid-waste injection wells in Illinois by mathematical models

This report contains the results of a preliminary theoretical study of the fate of liquid industrial wastes injected into deep geologic formations. The Jones and Laughlin Corporation well was used as a model and the geology of the area was idealized into a 15-layered homogeneous and an isotropic mathematical model. The finite element method was tested and proved to be an effective mathematical tool in the solution of the equation of flow. The flow and pressure build-up show that the rocks are capable of receiving greater volumes of waste than are now being injected without endangering the integrity of the aquifer or the confining layer.The mass-transport equation for large and complex ground-water reservoir systems was investigated, and it was concluded that the dispersion and diffusion parts of the equation are relatively insignificant, and under extreme conditions the dispersed zone will not be more than a few feet wide. Therefore, it was concluded that a more practical approach to the problem would be the solution of a system with a moving interface boundary in which mass transport results mainly from convection.To overcome difficulties encountered with computer time and memory in the solution of the mass-transport equation for large complex systems, an iterative method is proposed for the solution of the equations, which substantially reduces these difficulties.U.S. Department of the InteriorU.S. Geological Surve

Computer-calculated Lambert conformal conic projection tables for Illinois (7.5-minute intersections)

Ope

Water Resources Systems Analysis by Discreet Differential Dynamic Programming (HES 24)

Office of Water Resources Research U.S. Department of the Interior and University of Illinois Water Resources Centerunpublishednot peer reviewe

A Differential Dynamic Programming Approach to Water Resources Systems Analysis

219 p.Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 1970.U of I OnlyRestricted to the U of I community idenfinitely during batch ingest of legacy ETD