Effectiveness of Capture Zones Generated by Intermittent Pumping of a PV-Powered Pump-and-Treat System without Energy Storage
A common technology to remediate and/or contain contaminated groundwater is pump-and-treat remediation (P&T). Traditionally, P&T systems have been designed to operate continuously to achieve steady-state capture zones, for which large amounts of energy are required. Green and sustainable remediation (GSR) is emerging as a viable method to minimize the adverse effects of remediation on the environment. One of the challenges associated with photovoltaic- (PV-) powered P&T systems is the assessment of their performance given the intermittent nature of the power availability. This article characterizes the hydraulic containment effectiveness of a PV-powered P&T system without energy storage using data collected at two different remediation sites, a Dry-Cleaning Environmental Response Trust Fund site in Rolla, Missouri, and the Former Nebraska Ordnance Plant near Mead, Nebraska. Additionally, a method to estimate the effectiveness of the hydraulic containment as a function of the total volume of groundwater expected to be extracted is being proposed. Two transient and a continuously pumped capture zones were modeled using Visual MODFLOW® 2012.1 along with MODPATH and compared. The study shows that smaller capture zones will be generated from intermittent pumping when compared to continuous pumping.
Y. C. Lena et al., "Effectiveness of Capture Zones Generated by Intermittent Pumping of a PV-Powered Pump-and-Treat System without Energy Storage," Remediation, vol. 23, no. 3, pp. 111-122, John Wiley & Sons Inc., Jun 2013.
The definitive version is available at http://dx.doi.org/10.1002/rem.21360
Geosciences and Geological and Petroleum Engineering
International Standard Serial Number (ISSN)
Article - Journal
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