Dewatering Tubes for Dredging Sludge
Sludge Tubes to Dredge Aluminum Slurry
Question: I would like to get some pricing and additional information on dewatering tubes. We are dredging aluminum sludge for a water plant lagoon. The basins are about 500 ft. long and wide. How are these tubes filled?
Answer: We'd be happy to give you some more information on our dewatering tubes and how to receive pricing. The sludge dewatering tubes can be made in several configurations depending on the surface you have available. Factors influencing the overall performance include the percentage of water content in the media, size of the particles, shrinkage when dry, and soil composition.
Our dewatering tubes are excellent for larger operations, with circumferences ranging from 15 to 90 feet. They have excellent UV and filtration properties and can dredge a lake or other large body of water very well. We recommend using flocculent in combination with the dewatering tubes to improve performance (solidification, filtering, and discharge rates). Lengths start at 50' and go to 250'. We can also custom manufacture a tube to meet your exact project specifications.
Geotextile Tube Port Information
Geotubes are filled through ports located throughout the tube. Ports are typically spaced evenly along the tube. The number of ports, as well as the spacing, depends greatly on the size of the geotextile tube. Sludge tubes contain 1 to 5 ports, with 1 port for every 50' of length. These ports can be filled through hoses and pumps.
Filling Sludge Tubes
When dredging sludge, geotubes are filled to 85 percent capacity with slurry mix and then allowed to solidify. Once consolidation has taken place, the dewatering tubes are refilled, and the cycle continues until the solids reach 85 percent of the total geotextile tube capacity.
To achieve the best volume reduction, dewatering tubes should be left in place over an extended period of the time. Reduction rates vary from site to site, whether you dredge a lake or dewater aluminum sludge. After the removal process is done, consolidated materials are transported off site for disposal.
Learn more about Geotubes on our main informational page.
You can also read about a customer who needed Dewatering Bags to Remove 1,000 Cubic Yards of Sediment.