Biosorbe has developed a method to hydrofobize cellulosic fibers in industrial scale. The modified fibers repel polar substances, such as water and water-based fluids, and attracts nonpolar substances, such as oils, grease and fats.
The Biosorbe fibers provides an efficient filtering step prior to a more costly filter medium, such as activated carbon (AC) or ion exchange resin (IE). The Biosorbe fibrous filter is able to
separate nonpolar substance from the water phase, as well as debris and particles.
In case studies, the Biosorbe filter has successfully separated debris and particles, as well as oils, fats, fuels and even long chain PFAS from highly contaminated water. This enables the
more costly filtering steps with e.g. AC or IE filters to operate more effectively and for a longer period since clogging particles and substances is separated in the Biosorbe pre-
filtering step.
1
The Biosorbe provides a pre-filtering step to separate debris and suspended particles, as well as nonpolar substances and a portion of the longer PFAS chains and hence provide extended lifetime of the GAC, which can more effectively separate the shorter PFAS chains and other small contaminants.
2
Biosorbe is effective in extending the lifetime of other filter media as debris, suspended particles and other nonpolar substances are absorbed and leaves the more expensive GAC medium to handle smaller contaminants i.e. shorter PFAS molecules, heavy metals or odorous and coloring substances.
3
Drinking water purity levels have been achieved from heavily contaminated water samples with Biosorbe in combination with another filter medium.
Drinking water purity levels have been achieved from heavily contaminated water samples with Biosorbe in combination with another filter medium.
Life expectancy of downstream filter medium is prolonged
Many contaminants are absorbed by the Biosorbe filter alone, but downstream medium is often needed for high purity
