ORC-Advanced and ORC Primer have been applied through 17 injection wells in order to cover the contaminated area as best as possible, as access is restricted due to the existing operational tank farm. Both ORC products – each with different oxygen release patterns – can be applied together in a single injection activity. Three equal injection campaigns have been scheduled in accordance with the approved remediation plan.
ORC not only allows for better efficiency than Air Sparging and Biosparging on this low permeability site, minimising preferential pathways and providing oxygen already in dissolved form and not in air form, but also minimises disturbance to site activities and does not require periodical equipment maintenance.
Furthermore, as Regenesis can provide a range of ORC compounds with different oxygen release patterns, treatment can be customised by combining of products into a mixture to best meet the aquifer’s specific needs.