SCONSA Sludge Dewatering Tubes
Size and Capacity
SCONSA Dewatering Tubes are available in any size meaning that any capacity required can be achieved in one bag, or where more convenient more bags. When filling the bags, they are usually filled to 85% capacity with slurry mix and then allowed to consolidate. Once the water has drain they are then refilled and this continues until 85% of consolidated solid is reached. Depending on the size and fill material, it usually takes 7-10 days until the material is ready to move.
Further Filtration
To reduce the suspended solids within the water exiting the Dewatering Tubes,
floc tanks available for rental from SCONSA Environmental Services can reduce the turbidity of the water further by utilising polymers such as
floc logs .
Cost Effective
Dewatering tubes are geotextile tubes made in various strengths and thickness to make them suitable for a range of sediment and sludge dewatering applications including containment of slurries. They are environmentally friendly and are typically the most economical approach to dewatering projects.
For more information or to get a quotation on our Dewatering Tubes, please contact us on 0121 31 31 008 or
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1 to 500 m3 Capacity
Next Day Delivery
Unbeatable Rates
The SCONSA Sludge Dewatering Tubes, otherwise known as Geo Tubes, or Silt Tubes are manufactured utilising our own tried and tested design by our in house manufacturing facility in Glasgow.
Dewatering tubes have a range of uses from drying our dredged material, paper mill mulch and contaminated slurries.
How Dewatering Tubes are made
Geotextile dewatering tubes are manufactured by sewing one or more layers of high-strength permeable woven or non-woven geotextile together to form our dewatering tubes that are later filled with high-water content materials by hydraulic pumping.
How the System Works
When geotextile dewatering tubes are used in dewatering slurries, a filer cake forms on the interface of the soil and geotextile. The formation of the filter cake, which leads to the retention of the soil particles
from the land, can be controlled by the pore openings of the geotextile, the particle size distribution of the soil, the water content of slurry, and the pumping pressure.
When compared to traditional dewatering methods, geotextile tubes or bags used for dewatering high water content materials offer several advantages: rapid dewatering of large volumes of slurries, ease of construction, convenient placement, high efficiency, low cost, labour savings, and low environmental impacts.
Main Functions
Dewatering tubes perform three related functions: containment, dewatering, and consolidation.
Particles trapped
High water content in filled with sediment material is hydraulically pumped into the dewatering tubes and as the liquid escapes from the geotextile tube, solid particles are trapped inside. This process is repeated until the tube is full. Eventually, the solids can be handled as dry material, increasing options for transportation and disposal.
When the geotextile dewatering tube performs the containment function, it acts like a filter: as the dewatering of the sediment laden water using the geotextile tube takes place, the soil particles float in the water, and after the particles move through the geotextile, a filter cake forms as enough coarse particles settle down ahead of the fine particles to block some of the geotextiles’ pores.
Benefits
There are many benefits to SCONSA's Dewatering Tubes. They are a cost effective solution as they require minimal dewatering equipment and are not labour intensive. They also have no hi-tech complicated parts or procedures making them more reliable than alternatives. They also save time as they can handle high flow rates and are ideal for building settling lagoons.
Temporary Dams
