The Geotube® containers are constructed of a unique fabric, specially engineered for a marine structure. In the filling stage, the Geotube® container is filled with dredged sand or similar materials. The Geotube® system has unique designed strength, filtration, and retention characteristics to withhold sand or similar materials to act as a permanent or non-permanent containment structure: Step 1: Filling Geotube® Marine and Shoreline Technology is a permeable system fabricated from an engineered textile specifically designed for containment and shoreline erosion protection. How TenCate Geotube® Marine and Shoreline Technology Works When full, the TenCate Geotube® container and contents can be deposited at a landfill, remain on-site, or the solids can be removed and land-applied when appropriate. Volume reduction can be as high as 90 percent. Step 3: ConsolidationĪfter the final cycle of filling and dewatering, the solids remain in the bag and continue to densify due to desiccation as residual water vapor escapes through the fabric. The decanted water is often of a quality that can be reused/returned for processing or returned to native waterways without additional treatment. Over 99% of solids are captured, and clear filtrate can be collected and recirculated through the system. The volume reduction allows for repeated filling of the TenCate Geotube® container. This results in effective dewatering and efficient volume reduction of the contained materials. Step 2: DewateringĬlear effluent water simply drains from the TenCate Geotube® container through the small pores in the specially engineered textile. The TenCate Geotube® container's unique fabric confines the fine grains of the material. Environmentally-safe polymers are added to the sludge, which makes the solids bind together and water separate. Sludge (slurry material) is pumped into the TenCate Geotube® container. How TenCate Geotube® Dewatering Technology Worksĭewatering with TenCate Geotube® technology is a three-step process: Step 1: Filling
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