TenCate Geotube® Technology offers solutions for both dewatering applications and marine structures / shoreline protection applications.TenCate Geotube® dewatering technology has become the dewatering method of choice for organizations around the world. TenCate Geotube® dewatering technology is used for projects large and small, and there is good reason — simplicity and low cost. For more than 40 years, TenCate Geotube® technology has protected shorelines, rebuilt beaches, and reclaimed land from the sea. TenCate Geotube® containment technology is a proven, cost-effective method for a variety of shoreline protection and marine construction projects. TenCate Geotube® technology has been used to produce sand dune cores; wetlands and other habitats; jetties, dikes, and groynes; and underwater structures — and to even raise brand new islands from under water.
Our Primary Services
- Dewatering – municipal sludge from wastewater/water filtration plants
- Dewatering – sludge/marine sediments from environmental dredging and/or remediation works.
- Shoreline Erosion – marine structures including embankment protection, sand dunes, breakwaters, jetties & groynes
- Land Reclamation/Beach Renourishment
- Island creation – man-made islands
- Custom made geotextile bags
Industries We Serve
- Energy / Power
- Food / Beverage
- Hotel / Tourism
- Industry / Manufacturing
- Water & Waste
- Oil & Gas
Project Name: The Ideal Dewatering Solution for Municipal Wastewater Treatment
TenCate’s Geotube® dewatering technology is a simple, cost-effective system. It has been proven to efficiently dewater municipal wastewater. It is ideal for digester cleanout, and requires minimal capital expenditure. Geotube® dewatering is ideal for lagoon, tank, and digester cleanouts. Geotube® technology combines dewatering and containment in one operation. Geotube® dewatering produces an 85% reduction of BOD in the effluent. Dewatered solids are safely contained inside the Geotube® container and are not affected by wind or rain. Dewatered solids can be disposed of in a landfill or land applied. Geotube® units are available in sizes to fit drying beds or can be custom fabricated to fit in any available space.
Project Name: Barbuda Shoreline Restoration
The island of Barbuda suffered greatly from the destructive forces of Hurricane Irma in 2017. Barbuda’s beaches were eroded, and many resorts suffered extensive structural damage and flooding. All residents were either evacuated or displaced due to the storm which ultimately resulted in $600m in damage and wiped out 95% of the islands infrastructure. Geotube® Shoreline Protection was chosen to help rebuild and fortify the shoreline at an upscale boutique resort on the east end of the island. The design involved a three-step restoration plan including property protection and beach restoration. First, Geotube® units were installed in front of the damaged property. Scour aprons were placed beneath the Geotube® units to prevent toe scour and undermining of the Geotube® structure. Second, sand was hydraulically pumped from the sea and discharged into the Geotube® units. The sand was contained inside the Geotube® units while the water released through the geotextile resulting in a 5’ high, densified sand filled unit. Finally, after all of the Geotube® units were filled, they were covered with sand and vegetated to create the natural aesthetic of the beach. The newly rebuilt and fortified shoreline will protect the beach and resort property during future storm events.
Project Name: Dominican Republic Shoreline Protection
A large utility company in the Caribbean suffered major shoreline erosion from years of repeated storm surge consisting of 3+ meter waves. The waves and storm surge eroded 50 meters of beach and destroyed the living shoreline jeopardizing the power plants impoundments and coal storage. Due to limited real estate on the island, the utility company had no choice but to reclaim the beach and fortify the shoreline to prevent a breach of its critical infrastructure. Stone filled gabions were originally planned for the protection of the shoreline. However, the risk of failure due to rusting steel, and the inability to restore the living shoreline on top of gabions, introduced an opportunity for Geotube® Marine Technology. Other successful Geotube® projects in the region convinced the utility company to change their plans and engineer a Geotube® constructed revetment. The design included a combination of stacked 45’ and 34’ circumference Geotube® containers. Geotube® Flat End technology was used to achieve a constant elevation and seamless transition across Geotube® container junctions. Scour aprons were included for use under the base layer to protect the containers. The design also called for restoring the damaged ecosystem by covering the 4 meter high, 182 meter long Geotube® structure with rock, sand, and local vegetation. Construction began on the project in May, 2015. The contractor leveled an 18 meter wide area near the low tide line. Two 50 meter scour aprons were installed at one time with 3 meter overlaps. The contractor then deployed one 30 meter long Geotube® container and filled it with sand from a slurry box that was positioned on the escarpment above the structure. A steel frame was utilized to support the flat ends of the Geotube® containers to ensure proper overlaps at junctions. This process was repeated to complete the installation. The area between the structure and the eroded shoreline was backfilled with sand to complete a level platform. In August, 2015, near the end of the installation, Hurricane Erika took a path directly over the project location. The winds reached 69 km/h and the waves exceeded 3 meters. The Geotube® structure protected both the shoreline and power plant property without any damage.
Available for Disaster Response
Geotube® Marine Structures can be deployed rapidly to armor shorelines/beaches and protect critical infrastructure from eroded land and water intrusion.
Geotube® Dewatering can be deployed to contain spoils (sand, sediments, etc) from ponds, waterways and lagoons that have been overloaded as a result of storm surge and high volumes of storm water runoff.
Geotube® technology only requires power from generators to operate the pumps that hydraulically transfer sand slurry and or sludge from the source to the Geotube® containers. No maintenance is required.
Geotube®, Dewatering, wastewater treatment, erosion, dredging, sludge, breakwater, marine, structure, filtration