3D Density-dependent Groundwater Modeling
In Assessing Optimisation Of A Pumping
Strategy Within A Chemical Plant
Author(s)
D. Campoli, E. Crestaz, M. Fehervari, L. Patata & P. Scipioni
Abstract
This paper focuses on the key-role of density-dependent groundwater modeling
in designing an emergency pumping strategy for a small area within an Italian
chemical site, located close to the seashore. The finite-element numerical code
Feflow has been used, due to its numerical features and its full-3D integrated
processing environment. Following a schematic geological, hydrological,
hydrogeological and contamination picture of the area, the initial conceptual
model has been investigated by numerical modeling, which has highlighted the
influence of leakage from human-made technological networks in controlling
groundwater recharge. As most of the leaking waters are pumped from the sea, a
general salinisation of the aquifer system occurred, resulting in a few meters of
\“relatively fresh” water and a sharp to gradual transition to sea water; numerical
modeling helped in assessing the transient hydrogeological history from the
unknown pre-industrial site configuration. Focusing on risks of contaminated
water flowing to the sea, different pumping schemes have been simulated,
including shallow vs. deep pumping wells, optimisation of well location and
number. In the face of uncertainty issues in groundwater recharge and flow
estimation, conceptual guidelines have been provided, recommending proper
monitoring strategies to support the decision making process.
Keywords: groundwater modeling, salt-water intrusion, Feflow.
1 Introduction
A preliminary 3D density-dependent numerical flow model has been developed
for a small flat area located in southern Italy (fig. 1). The area, falling within a
Keywords
groundwater modeling, salt-water intrusion, Feflow.
Related Book
Other papers in this volume
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