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A Geotube®
container is a geotextile dewatering solution made from
specially designed, dual filament, polypropylene fabric. The
Geotube® container is fabricated to the requirements of each specific
project. Geotube® technology provides a simple, low maintenance and
cost effective solution for the dewatering needs of many
industries.
How Geotube®
Dewatering Solution Works
The
Geotube® dewatering solution works in three stages;
containment, dewatering and consolidation. View the video at
left to see how Geotube® works.
Containment
First,
the sludge is pumped into the Geotube®.
As the sludge is pumped to the Geotube®
container
it is mixed with a coagulant. Adding a coagulant to the
sludge causes flocculation, and the solids to separate from
the liquid.
Dewatering
While Geotube®
containers are being filled with flocculated sludge, the dewatering
process is already taking place. Filtered effluent begins to
flow through the special material of the Geotube®
container,
while the solids remain trapped inside. The filtrate can
then be directed to a lagoon, wastewater treatment
plant, aerobic in ground secondary treatment system, or
where ever the design applications require. In turn, these
solids retain a very high amount, and in many cases 100% of
chemicals and metals.
Consolidation
During the consolidation stage, the solids inside the
Geotube®
container
go through a microbial compost process, and continue to
de-water over time. In cold climates, winter freezing aids
the de-watering process, allowing further reduction of
solids. When the Geotube®
container
is finished dewatering (typically two to twelve months) the
contents are removed with loading equipment. Dewatered
sludge can be spread on approved fields, go to landfill, or
be used, if applicable for energy production. In the case of
biosolids and agricultural waste, the sludge can go through
secondary composting, the end results being top soil. The
dewatered sludge can also be used for digester energy
production. |
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