Arrangement and Performance of Permeable Reactive Well (PRW) through Modeling

摘要

Permeable Reactive Wells (PRWs) installed by boring have many advantages. It can reduce the construction time and it also can treat deep contamination compared to continuous wall or funnel and gate systems. In this paper, the ground water flows though PRWs was estimated by a numerical analysis. 2-dimensional, steady state flow, homogeneous and isotropic aquifer was assumed. Simulation results show that; (1) Capture width is largely affected by the transverse interval between wells. (2) In case of multiple wells, lead contaminant transport was considered for determining well arrangement. Transverse interval was increased, capture width was increased. When transverse interval was leached to 0.8m, capture width was not increased above 1.85 times of well diameter. Lead transport was affected by arrangement of wells. PRW performance was affected by longitudinal interval. And transverse interval was resulted in contaminant spread to the side of PRW.