Solmax Geotube®

For dewatering, dredging and coastal protection

Use the technology to remove sludge from wastewater treatment plants, fish farms or productions

Challenges with sludge from sewage treatment plants, fish farms or production facilities, the need to clean up lakes and harbors or secure coastlines – whether you are a municipality, industry or contractor, you may need simple and environmentally friendly dewatering, cleaning or coastal protection. This is done with TenCate Geotube®.

As the only distributor in Denmark, Envidan offers the original TenCate Geotube®.

TenCate Geotube® technology is well proven with many references in Denmark, and can be used for dewatering sludge from wastewater treatment plants or for cleaning up lakes and harbor basins. In addition, TenCate Geotube® is a durable and proven solution for shoreline and marine protection.

Drainage and purification

Use TenCate GeoTubes® for dewatering and purification projects.

  • Biological sludge from wastewater treatment plants, as an alternative to traditional mechanical dewatering or dewatering in sludge mineralization plants as a permanent or temporary installation
  • Sediment from e.g. lakes or harbor basins in connection with dredging
  • Sediment from rain water basins, channels and drains related to purification
  • Sludge from industrial production
  • Sludge from fish farms


Coastal protection

Use TenCate GeoTubes® for coastal protection projects

  • Cladding of banks
  • Dams
  • Piers
  • Breakwaters

More on the use of the technology

The method is simple to use and effective, as well as very flexible, as the size of the bags can be adapted as needed. The technology uses large porous bags consisting of a synthetic canvas (geotextile) that retains solid material while allowing excess water to drain off. There are several different types of geotextiles available depending on needs.

TenCate Geotube® technology is also available as a container model, where bag filling, dewatering and concentration takes place in the container, which is transported to the final recipient after the storage period.

At the same time, the technology requires minimal energy consumption and ensures the lowest possible volume for transportation and landfill or land application. The Geotube® bag is made of polypropylene and can be delivered for combustion after use.

We are ready to help

Envidan can be your consulting engineer and sparring partner. In addition, we can assist with the following implementation services:

  • Technical consultancy, assistance and coordination in the planning and start-up of the project
  • Supply of geotube® bags, drainage mats etc.
  • Supply of other machinery and equipment
  • Enter into agreements with contractors
  • Preparation of tender documents etc. and tendering where required
  • Regulatory treatment
  • Consultancy as regards to the implementation of the project
  • Reporting
TenCate Geotube® technology dewaters and contains dredged sediments from rivers, marinas, and other waterways, allowing disposal or treatment of contaminated sediments

Contact me
for more information

Søren Lindtofte Brandt


+45 60 23 83 53