TECH: ADVANTAGES

• The system can be driven into unconsolidated materials, minimizing installation time, and reducing or eliminating generation of potentially-contaminated spoils.   

• If driving is not practical or desirable, the filter piles can be installed in boreholes or placed in open excavations.

• Filter piles connect with lightweight vinyl sheet piling, or can be tied into slurry walls.  The system offers numerous flexible alternatives for creating the below-ground cut-off wall.

• Higher concentrations of contaminants can be removed near source areas, where where conventional Permeable Reactive Barriers (PRBs) are not effective. 

• Dissolved constituents can be treated further down-gradient in the plume. 

• Optional skimmer cartridges can be deployed to capture Non-Aqueous Phase Liquids (NAPLs).  Skimmers are combined with the standard replaceable treatment cartridges (CartridgeRxTM).

• Cartridges can be easily removed and replaced, allowing the remedial engineer to deploy different permeable reactive materials (PRMs), and/or to treat contaminant plumes that change over time.

• Groundwater quality can be monitored directly in the filter pile before and after treatment using integral sampling ports.  This feature reduces or eliminates the need for expensive monitoring wells.

• The technology can be deployed in above-ground applications to deal with problems involving contaminated sediment, mine drainage, or surface water.

• All components are lightweight and easily installed, as they are fabricated from advanced polymers and composites that offer high strengths, low weights, and excellent corrosion resistance.

• In sensitive or unstable areas, the system can be installed by driving from a set-back crane to minimize environmental impacts on the site.  

• Stainless-steel screens are easily accessible from inside the filter pile and can be rehabilitated if clogged.

• The SubflowRx offers a reliable, long-term, and cost-effective remedial solution.