Tektoseal Active PFAS combines the advantages of geotextiles with proven, particularly reliable pollutant adsorbents. In this way, you can reliably secure and remediate contaminated soils with the help of Tektoseal Active PFAS. Our large-area, permeable contaminant barriers can be installed evenly and erosion-proof on and in soils and even underwater. The fast reaction kinetics and high binding capacity of the adsorbents allow reliable application to a wide range of PFAS pollutants. Thanks to the fast pollutant absorption, it is possible to build a very thin and at the same time safe pollutant filter, which makes your project even more sustainable.
An application is possible for contaminated sites with short and long chain per- and polyfluorinated alkyl substances such as PFOA, PFOS, PFNA, PFHxA, PFHxS, PFBS and PFBA PFPeA. Our selective ion exchange resin has a demonstrably much higher pollutant absorption capacity than e.g. mineral adsorbers or many other alternative solutions on the market. If the focus of individual remediation measures is on long-chain PFAS in particular, the use of selected activated carbon can also yield advantages. Which active substance has the best properties should be investigated on a project-specific basis. Thanks to our broad portfolio of active substances, the optimal selection can be made for each project. For a more in-depth analysis of your project-specific problem and product configuration, our team of experts will be happy to assist you at any time.
Special high-performance textiles and the selective ion exchange resin ensure the highest pollutant absorption capacity for a wide range of applications.
High-performance textiles and selected activated carbon form a pollutant barrier for selected applications.
Our product solution of technical geotextiles combined with the special ion exchanger as active substance can be used for almost every short- and long-chain per- and polyfluorinated alkyl substance (PFAS) and used safely in the long term. PFAS pollutants, i.e. sulphonic and carboxylic acids, are permanently and reliably bound by ion exchange and adsorption. The use of active geocomposites enables soil remediation with the help of passive soil decontamination.
Third party laboratories evidence shows that our highly efficient geocomposites with special ion exchanger have been proven to remove both short and long chain PFAS better than many other mineral adsorbents. Desorption at a later stage is also excluded due to the extremely high binding strength.
- Immediate binding of short and long chain carbon and sulfonic acids
- Highest capacity both at low and very high PFAS concentrations in the eluate
- Exclusion of later desorption due to strong binding between the pollutant and the active substance
The high effectiveness of Tektoseal Active PFAS was also proven in column tests. Here it is shown that Tektoseal Active reliably absorbs the pollutants already at the first leachate contact with high PFAS concentrations. As soon as the PFAS-enriched eluate passes the pollutant filter, the chemicals are reliably absorbed in the active geocomposite (see graph on the left). In this way, the soil is reliably cleaned successively until it is completely washed out. We would also be happy to carry out the test with your project-specific soil sample. We look forward to hearing from you!
Depending on the challenges on site, a Tektoseal Active product variant with activated carbon can also lead to effective contaminant removal. The many boundary conditions in the remediation of PFAS issues mean that the selection of the optimum adsorber is generally not trivial, but should be determined in advance with the aid of preliminary tests. Primarily long-chain PFAS compounds are bound reliably and over the long term with activated carbon. Here, too, it can generally be used on land and in water.
Isolation and passive decontamination of soils and sediments on land and underwater
Activated Carbon is well known as an highly efficient adsorbent of organic pollutants
Large surface area leads to high binding and pollutant absorption capacity
Reactivation of activated carbon after removal is generally possible
Project-specific product configuration for highest performance
With PFAS issues, not all activated carbon have the same effectiveness. The right choice makes the difference
Due to the complex natural interrelationships of contaminants, water and soil properties, and adsorption behavior of the active substances, configuring the optimal active geocomposite is not always trivial. With our expertise and laboratory know-how, we support you to find the best-performing solution consisting of special geotextiles and a broad and unique portfolio of active substances. We are glad to run project-specific preliminary tests to gain effectiveness analyses for you. With our holistic services for complex engineering projects, we ensure that “your” Tektoseal Active product solution is as optimally adapted as possible to the conditions on site and can therefore be used safely in the long term.
Woven geotextiles as carrier layer
Nonwoven geotextiles as cover or carrier layer
Modified selective resin (Ion exchange plus adsorption)