Bradley manufactures two basic types of geotubes used for dewatering sludge. Whether it be industrial sludge, human waste, animal waste or virtually anything that uses our water supply to move from one location to another.
Traditional geotubes are manufactured from mill widths of fabric and can be assembled in usually fifteen foot circumferences such as 15, 30, 45, etc. They are usually the cheapest to purchase but always the most expensive to use.
SPIRAL* geotubes are designed by using a patented design that places "Helical Ribs" circumventing the entire length of the geotube.
These ribs allow the geotube to be lifted up in elevation thus providing a significant amount of additional cross sectional area in which to dewater the waste.
Our SPIRAL* geotubes can be constructed with perpendicular drains usually on 1.5 meter centers that allow the moisture numerous avenues to exit, leaving a much dryer mass of solids within the same area.
Since this design allows greater heights, the load on top or the head weights down the sludge on the bottom and presses the water out through the perpendicular drains.
This compacting keeps other slurry from infiltrating into the condensed bottom layers.
The next page illustrates the difference in capacity of the two systems using the same size containers.