When Oxygen Release Compound (ORC®) was first commercialized in 1994, it was emplaced into groundwater wells using ORC Filter Socks. Filter socks are permeable, fabric sleeves filled with pure ORC or ORC Advanced® controlled-release oxygen material. Each filter sock is inserted into a colored, Naltex™ Flex-Guard for ease-of-application and maximum durability. When placed into groundwater or hydrated, filter socks produce controlled-release, molecular oxygen for periods of up to 12 months on a single application. The abundant oxygen is readily available to facilitate the proven and cost-effective, enhanced aerobic biodegradation process.
ORC and ORC Advanced Filter Socks are designed to deliver controlled-release oxygen into a specific well or treatment area with the purpose of creating a very limited and localized aerobic zone where accelerated biodegradation can occur. Upon exhaustion of their oxygen supply (anywhere from 9-12 months) the socks can be removed, disposed of and replaced with a new one.
ORC and ORC Advanced Filter Socks are very similar products, however, many remediation professionals choose to use ORC Advanced Filter Socks due to a higher % by weight oxygen content (17% ORC Advanced vs. 10% ORC). Put simply, you get more oxygen per pound of material with ORC Advanced.
Filter socks are 12″ long and available in 2″, 4″ and 6″ diameters, they are easily laced together using the pre-measured/ pre-cut rope that is supplied with each filter sock order. (Figures 1, 2, 3 and 4). All sizes of Regenesis ORC and ORC Advanced Filter Socks include a factory installed, colored, Naltex™ Flex-Guard (green = 2”, yellow = 4” and orange = 6”). This component is designed to prevent rips or tears in the actual sock material assuring durability during the installation and removal process
For deeper applications, filter socks can be directly inserted into Application-Time-Saver Canisters, then into the well. This can avoid the costly mistake of having the filter socks get lodged in the well.
For a complete listing of treatable contaminants please visit our Range of Treatable Contaminants Page.
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