Clean soil as the basis for sustainable construction.
Soil remediation
Using extractive, thermal, biological cleaning, and immobilization, we convert contaminated soil into high-quality secondary building materials. Nationally and internationally deployable from our strategic locations.
At the Theo Pouw Groep, we process no less than approximately 2 million tons of mineral waste annually and continue to innovate in sustainable soil remediation. Our techniques include extractive, thermal, and biological remediation, as well as immobilization.
We operate a nationwide network. Our locations in Utrecht, Eemshaven, Akkrum and Weert also operate soil banks for clean and reusable soil. This allows you to rely on fast processing and reuse in accordance with the strict requirements of the Dutch Soil Quality Decree in infrastructure projects.
Contact
Do you have any questions about soil remediation? Please feel free to contact the Environmental Department at one of the locations listed below. They will be happy to assist you.
| Utrecht | +31 30 24 25 281 |
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| Eemshaven | +31 59 65 48 948 |
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| Weert | +31 49 55 83 330 |
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Extractive cleaning
Wet or extractive soil cleaning is a physical-chemical process in which contaminants are removed from the soil by concentrating them in a sludge fraction. The process is based on separation by particle size and/or density. In addition, separation takes place on the basis of, for example, magnetic properties or surface properties. This method is suitable for cleaning sandy mineral waste contaminated with, among other things, mineral oils, heavy metals, asbestos, PAHs, chlorinated hydrocarbons, or combinations thereof. The Theo Pouw Groep has extractive cleaners in Utrecht and Weert.
Thermal cleaning
Thermal cleaning is used for contaminated mineral waste where the contamination can only be separated by means of thermal desorption. This method is suitable for mineral waste contaminated with organic components, such as soil from gas plants, refineries, and other processes where heavier contaminants such as cyanides, PCBs, heavy oil chains, and PAHs can be released.
Immobilization
Immobilization involves altering the physical or chemical properties of waste material in such a way that the risk of contaminated substances spreading through leaching, erosion, or dispersion is significantly reduced. Contaminated mineral waste materials that are suitable for immobilization are primarily those contaminated with heavy metals.
Biological cleaning
Biological cleaning is carried out using bacteria. Organic contaminants are broken down into harmless compounds. Biological degradation is stimulated by aeration, moisture, and temperature. This method of cleaning is suitable for easily degradable organic compounds such as mineral oils.
Soil banks
The Netherlands has strict rules governing the use of used mineral building materials. Minerals released from construction projects must be certified before they can be used in new projects or in the soil. Our soil bank receives soil, dredged material, and other mineral building materials for storage, inspection, and certification.
