Tektoseal® Active - Des solutions modernes pour les métaux et les radionucléides
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Rue Jacques Coulaux
67190 Gresswiller

Tektoseal® Active for metals and radionuclides

The pollutant barriers for inorganic pollutants

Tektoseal Active product solutions for inorganic pollutants, can reliably secure, remediate or preventively protect contaminated soils, sediments and waterbodies from pollutant input. Our product solutions combine the advantages of geotextiles with the active substances particularly suitable for this purpose - our cation adsorber and zeolite. As a result of fast and high pollutant absorption, it is possible to construct very thin and secure pollutant filters for heavy metals, phosphates and radionuclides, making your project even more sustainable.

Application of the large-area, permeable and erosion-proof pollutant barriers is possible on and in soils as well as underwater. Our Tektoseal Active solutions with the particularly powerful cation adsorber, are optimally suited as permeable barriers for substances such as lead, mercury, arsenic etc.. A product configuration with zeolite increases the cation exchange capacity of filter and barrier layers. For a detailed analysis of your project-specific problem, our team of experts is at your disposal at any time.

Tektoseal Active product solutions for metals and radionuclides

High performance for heavy metals and phosphates

High-performance textiles combined with a special cation adsorber ensure the highest pollutant absorption capacity.

The alternative for lightly contaminated soils and ashes

High-performance textiles combined with zeolite (mineral molecular sieve) ensure reliable pollutant absorption in soils with low cationic contamination, among others.

Pollutant barrier with cation adsorber for all heavy metal and phosphate loads

Tektoseal Active with a special cation adsorber serves as a high-performance pollutant barrier for heavy metal pollution applications and has also been used to remove phosphorus from water. In addition to removing inorganic substances from the water, the active substance neutralises acidic water to a neutral pH value. The specific pollutant filter can be used over a large area to prevent environmental contamination by e.g. nickel, aluminium, copper etc.. In addition, already polluted media can be secured and passively decontaminated at the same time. For example, sediments and soils near mines, heavy industry and other potential sources of danger can be treated passively. This protects surface and groundwater, people, animals and our environment without the need of plant treatment measurements.

Grande efficacité sur les métaux - Plus de 97% d'élimination des métaux tels que l'arsenic, le plomb ou le mercure dans l'eau ou le gaz.
High effectiveness with metals
Arsenic, lead or mercury, etc. are safely removed from the carrier medium (water or gas) with an effectiveness of more than 97%.
Adsorption de radionucléides - Plus de 90% d'efficacité dans l'adsorption de radionucléides comme l'uranium, le radium ou le strontium
Adsorption of radionuclides
Radionuclides such as uranium, radium or strontium are also adsorbed with an
effectiveness of more than 90%.
Neutralise l'acidité - Tamponne les eaux acides à un pH 7 (neutre)
Neutralises the acidity
The mineral structure neutralises acidic waters and buffers the pH value to a level of approx. 7 (neutral).
Performance maximale sur chaque mètre carré - Fixe de grandes quantités de métaux et de radionucléides par mètre carré
Maximum performance on every square metre
Based on laboratory studies, more than 200,000 mg of metals and radionuclides can be bound per m².
Cinétique de réaction rapide - Filtre de grandes quantités d'eau en très peu de temps
Fast reaction kinetics
Large quantities of water can be filtered in a very short time, thanks to the fast reaction kinetics of approx. 3 minutes.
Grande capacité d'échange de cations - Application polyvalente sur terre et sous l'eau
Variable use
Cation exchange capacity enables application in various installation situations on land and under water.

Highest effectiveness and excellent pollutant protection

Our highly efficient geocomposites with special cation adsorbers bind a variety of hazardous inorganic substances. The cation adsorber is a demonstrably highly efficient active substance for the treatment of pollutants and, in combination with our geotextiles, can be laid in a permanently mechanically stable manner over large areas. 


  • Proven affinity to many metals present in the environment at high and low concentrations
  • High pollutant absorption capacity enables long service life
  • Strong binding between active substance and pollutants minimises system reversibility (desorption)


The high affinity as well as the large capacity for various metals and radionuclides present in the environment can be demonstrably measured. A breakthrough of the active material can only be detected after large quantities of metals have been discharged (see graph above). In field tests with mine water, the laboratory results can be confirmed with regard to effectiveness, capacity and the exclusion of system reversibility.

Pollutant binding through adsorption

Composition du matériau et couches - Tektoseal Active
Grain Tektoseal Active Tecnoclean - Adsorbant cationique performant pour le traitement des polluants
Cation adsorber as a powerful active substance
 Aperçu schématique du grain Tecnoclean
High capacity due to pollutant adsorption
Applicable aux polluants inorganiques - Tektoseal Active
Applicable for inorganic pollutants
Grain Tektoseal Active Tecnoclean - Adsorbant cationique performant pour le traitement des polluants
Cation adsorber as a powerful active substance
 Aperçu schématique du grain Tecnoclean
High capacity due to pollutant adsorption
Applicable aux polluants inorganiques - Tektoseal Active
Applicable for inorganic pollutants

The natural alternative solution with zeolite for lightly contaminated soils and ashes

Depending on the challenges on site, a Tektoseal Active product variant with zeolite - the mineral molecular sieve - can also be advantageous. Zeolite has a high cation exchange capacity and can be used, for example, as part of the backfilling of old building materials, contaminated soils or ash. In order to comply with limit values for the storage or securing of these materials in the field or to use them as a building material, zeolite can be an economical alternative. The many boundary conditions associated with inorganic pollutants mean that the selection of the optimal adsorber should be determined, if necessary, with the help of preliminary tests. This is what we offer you through our experts and engineers.

  • Realisation of a high cation exchange capacity in the filter or barrier layer

  • Safeguarding of contaminated soils in the field

  • Additional safety when building with substitute building materials and slightly contaminated materials

  • Project-specific and economical product configuration by our experts

Application examples for Tektoseal Active for metals and radionuclides

Together we always find the best possible product configuration for your project!

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.

Your product configuration kit
Everything for your Tektoseal Active contaminant barrier
  • Woven geotextiles as carrier layer

  • Nonwoven geotextiles as cover or carrier layer

  • Cation adsober (treatment mechanism: pollutant adsorption)

  • Zeolite (treatment mechanism: molecular sieve with cation exchange)

Vue détaillée des géotextiles - partie du kit de configuration du produit
Le géotextile non tissé - une partie du kit de configuration du produit
Cation adsorber
Vue détaillée de l'adsorbeur de cations - partie du kit de configuration du produit
Zeolite - élément du kit de configuration de produits pour Tektoseal Active
Further information
can be found here