IAI was contracted to install geotextile tubes, in a tight alignment, to form an L-shaped wall. The geotextile tube wall contained dredged coal ash, which was pumped into the tubes at a rate of 1,500 GPM. The tubes were stacked in a 3-2 geometry, reaching a finished height of 11 FT, and length of 1,900 FT.
Geotextile Tube Dewatering
IAI has installed 680,000 lineal feet of geotextile tubes (and counting), to dewater 4.9 million cubic yards of material, in projects throughout the United States. We have used geotextile tubes to dewater both clean and contaminated sediments, industrial waste, coal ash (CCR), biosolids, sludge, and industrial waste products. See examples of our geotextile tube dewatering projects, below.
IAI provided design-build-operate geotextile tube dewatering and water treatment services for this Remedial Action project. TSCA and Non-TSCA regulated sediments were processed separately in the same dewatering facility, at a flow rate of 3,000 gpm. The water treatment facility met the non-detect PCBs discharge limit throughout the project.
IAI self-performed all portions of the Portage Canal Segment 1 environmental dredging project, from hydraulic dredging, to geotextile tube dewatering, water treatment and placement of a sand cap, utilizing specialized equipment, some custom-made for this project.
Coal ash (CCR) was dewatered in geotextile tubes and hauled to landfill after 21 days of dewatering.
IAI utilized a 445 horsepower, 12 inch diameter auger dredge with a 12 inch diameter inline booster pump to remove coal fines from an impoundment that was filling to capacity at a mining facility in southern Illinois. During day time hours, mine flow was combined with the dredge flow feeding the geotextile tubes dewatering operation, […]
IAI provided geotextile tube dewatering and water treatment services on this project, processing 145,000 cubic yards of PCB contaminated sediments and successfully treating and discharging 196 million gallons of water under an NPDES discharge permit.