PermaFilter Geotextile has been specially designed to retain hydrocarbon pollutants. PermaFilter Geotextile comprises non-woven, needle punched geotextile made from a proprietary blend of modified polyester fibers. The entrapped pollutants are either removed or reduced to levels suitable for discharge into controlled waters.

The proprietary blend of fibers in PermaFilter Geotextile exhibit specific hydrophilic and hydrophobic properties and these, combined with the dimpled structure, work together to form multiple layers with inherent oil retention properties. The hydrophobic (repelling) material receives and retains the hydrocarbon pollutants, whilst the hydrophilic (water attracting) elements simultaneously facilitate water retention resulting in a long-term stable biofilm, which subsequently degrades the entrapped pollutants.

“The units are designed with tomorrow’s  world in mind. Made from 100% recycled  materials now, and again 100% recyclable  in  the future.”

Ron van Raam, CEO Permavoid 

Features & Applications

Key features:

  • Polyester fibers
  • 300g/m²
  • Superior hydrocarbon retention of up to 6 l of oil per 10 m².
  • Maximum discharge of 4.5 ppm* during the first flush and during consecutive rain events only an average concentration of 1.5 ppm.

Common applications

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