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Liquid waste

Construction of basins to retain polluted liquids or industrial effluents is increasing and protecting groundwater has become a priority in Europe and worldwide. COLETANCHE effectively and naturally performs its essential function – waterproofing – and offers many other advantages.
  • Applications
  • Coletanche advantages
  • Other characteristics

COLETANCHE geomembrane is widely used for waterproofing leaching basins and polluted water retention basins in the mining, industrial and food-processing sectors: Salt water storage (salt mines and potash mines), sugar factories, copper and nickel mine leachates.

SPOTLIGHT: LIQUID MINING WASTE

Mining waste is composed of natural minerals extracted from underground soils that can crack and release pollutants when brought to the surface, thus posing a risk to the ecosystem. Liquid waste is stored using dams or ponds. Waterproofing is essential to prevent erosion of the structure and infiltration of polluted water into the soil.

  • No distorsion or elongation thanks to the SBS bitumen binder is stable in water, seawater and brine environments.
  • Increase the volume storage because it doesn’t require adding a protective layer.
  • Dimensional stability: allows the structures to withstand liquid pressure because they remain flat (no folds).
  • High vertical concrete walls (dams) can also be sealed thanks to high friction angle (until 34° slope).
  • Resistance to extreme climate conditions of mine (wind, temperatures).
  • Easy to install: only one layer is efficient, no need a protective layer.
  • Longevity: excellent performances over time, even in exposed conditions.
  • Long term mechanical (tension, puncture, elongation) and chemical (leaching, acid, UV, gas) resistance
  • Compatible with all types of materials (concrete, steel, PVC, etc) by sealing or gluing.
  • Dimensional stability: no sensitive to expansion phenomena and stress cracks.
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International liquid waste references

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World implantations
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References in more than 70 countries
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30 Million m² laid worldwide
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5 labels and certifications