Influência do fluxo induzido do rio sobre o aquífero - um método útil para descontaminar o aquífero poluído.

Abstract

The influence of induced flow on River-Aquifer system was investigated in an aquifer adjacent to the river in São Bento, PB. The data of CDRM on wells were used. The capture zones of wells and direct induction to the river were investigated. The graphs thus traced are important in monitoring the contaminated aquifer. The stagnation point was located and the distance between this and the well helped in determining the geometry of the extraction zone. A model in which the direction of regional flow was not coinciding with that of the gaining river was developed, which permitted evaluation of maximum pumping rate, β that induces infiltration of flow from the river to the well. These concepts elucidated here-in are useful in the control of pollution of agro-toxics in agricultural fields.