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Automated Impedance Tomography
for Monitoring Permeable Reactive Barrier Health—Multi-Phase Technologies,
LLC,
Dr. Douglas LaBrecque, Principal
Investigator, dlabrecque@mpt3d.com
Mrs. Marjorie LaBrecque, Business
Official, mlanrec913@yahoo.com
DOE Grant No. DE-FG02-04ER84013
Amount: $651,504
Although permeable reactive barriers (PRBs) are an important
treatment option for groundwater remediation, no reliable methods are available
to monitor or predict their long-term behavior. The large-scale implementation of reactive
barriers will require a means of monitoring their long-term degradation. For example, gaps can occur in the placement
of the reactive material, particularly when construction methods such as
jetting or deep soil mixing are used. This project will develop a reliable method to verify
placement and monitor the effectiveness of permeable reactive barriers. The approach will use arrays of inexpensive
electrodes, coupled to autonomously operating hardware and software, to
characterize the barrier and determine its effectiveness. In Phase I, column studies using ZVI and apatite
Commercial Applications and Other Benefits as
described by the awardee: The automated
monitoring system should find use in more than 100 permeable reactive barriers
that will have been installed in