Effectiveness of Capture Zones Generated by Intermittent Pumping of a PV-Powered Pump-and-Treat System Without Energy Storage
Article first published online: 13 JUN 2013
© 2013 Wiley Periodicals, Inc.
Volume 23, Issue 3, pages 111–122, Summer 2013
How to Cite
Lena, Y. C. D., Elmore, A. C. and Conroy, J. (2013), Effectiveness of Capture Zones Generated by Intermittent Pumping of a PV-Powered Pump-and-Treat System Without Energy Storage. Remediation, 23: 111–122. doi: 10.1002/rem.21360
- Issue published online: 13 JUN 2013
- Article first published online: 13 JUN 2013
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. © 2013 Wiley Periodicals, Inc.