At the end of their operation, landfill cells must be contained and covered with topsoil. To drain seeping rainwater and gases produced by waste, a drainage system with DRAINTUBE® FT must be installed underneath and above the geomembrane.
Placed on the geomembrane, DRAINTUBE® FT makes it possible in just one operation to install filtration, rainwater drainage and mechanical protection of the geomembrane. It replaces the upper protective geotextile of the geomembrane, the layer of granular drainage materials and the filtration geotextile.
Placed under the geomembrane, DRAINTUBE® FT drains gases produced by waste, while guaranteeing the mechanical protection of the geomembrane. It replaces the lower protective geotextile of the geomembrane layer of granular drainage materials and the filtration geotextile.
Connection to the collector via the Quick Connect system
The Quick Connect system directly connects the mini-drains from the DRAINTUBE® FT to the main collector drain. In the event of gas drainage, it generates negative pressure in the entire system.
Benefits
Protection of the waterproofing geomembrane against puncture
Rapid drainage of seeping rainwater
Cost-effective and environmentally friendly solution, does not require any granular material
Covering soil filtration
Improved waterproofing performance by limiting hydraulic loads on the geomembrane and pressure under the geomembrane
Optimised biogas collection
Biogas collection in the waste mass to replace drainage trenches
Stability of slopes and domes for revegetation
Preservation of the mechanical characteristics of the containment layer