These are tubular structures of superior tensile strength and optimum permeability, obtained by stitching together segments of woven PP or PES geotextile with high strength PES thread. The choice of material and appropriate size specifications are both customizable, depending on the project design requirements. The purpose of these tubular envelopes is to separate the solid and liquid components of mud, sludge, or material dredged from sea and river beds: the geotextile allows water to escape while retaining solid particles inside the tube. In the case of very fine particles, occurring typically in mud or sludge that contains high levels of silt and clay, for example, the separation process can be favoured by adding a suitable flocculating agent. This is a simple, effective and inexpensive technology that is used in two main fields of application.
In coastal defence and protection works, these structures are filled with a mixture of water and sand from sea or river beds and, once the contents are reduced to aggregate, used as core material for groynes, embankments or depositing basins.
In the field of operations connected with dredging and mining, or with processes for the treatment of urban or industrial waste water, on the other hand, these geofilters are effective in reducing the volume of mud and sludge to be sent for disposal (dewatering). In this instance the product is regarded generally as a consumable, in the sense that once the contents have been fully dewatered, the bags will cut open, emptied and disposed of.
Tubular element manufactured from woven PP geotextile with tensile strength of up to 105 kN/m, both lengthwise and crosswise, suitable for dewatering mud and sludge generated by treatment processes and by mining or dredging operations.
Tubular element manufactured from woven PP or PES geotextile with tensile strength of up to 200 kN/m, both lengthwise and crosswise, suitable for hydraulic and/or marine works where there is a particularly demanding throughput of material to be processed.
A flat rectangular sand-filled bag measuring approximately 50 cm deep and with a capacity of 2 m3. Used in hydraulic and/or marine works for filling breaches or as ballast/protection for submerged structures.
Dewatering of dredged mud on site
This is a simple, low energy technology (requiring a minimum of attendance and practically zero maintenance) used for reducing the volume of mud or sludge to be send for disposal. Accordingly, the relative investment and management costs are significantly lower than for other systems.
In the case of hydraulic and marine engineering works, it becomes possible to use materials already available in situ, thereby reducing the environmental and cost of quarrying and transporting aggregates from elsewhere.
Given the flexibility of being able to create structures of whatever size, SINTEXTUBE offers a solution that is readily adaptable to project design requirements and to local conditions.
