EnkaDrain Wide

Highly efficient landfill gas-venting layer applied since the 1980’s

Geosynthetic barriers such as geomembranes are an integral part of landfill capping systems. Their main function is to separate waste from the surrounding ground. Geomembranes must therefore be impermeable. The downside: gas cannot escape, and this causes the risk of it building up below the barrier. Eventually such buildup can result in the membrane bulging and the topsoil cover being lifted. These bulges are filled with methane gas and can lead to a slip failure of the landfill slope. Over the past four decades, EnkaDrain Wide has been installed as a gas-venting layer in thousands of landfills to address this issue.

This is EnkaDrain Wide

EnkaDrain for landfill drainage_copyrights Low & Bonar_Enka Solutions (2)Enkadrain Wide drainage mats are multifunctional, light and flexible geocomposites. Their drainage core is composed of synthetic monofilaments, which are thermally pre-formed into a V-shape configuration. This makes the product optimally pressure resistant. The drainage mat is produced with a width of five meters. For landfill applications, EnkaDrain Wide is covered with mechanically bonded nonwoven filters on one or both faces. However, the product portfolio also includes EnkaDrain Wide variants with thermally bonded nonwoven filters. The nonwovens are stitched to the drainage core. The stitching lines are parallel to the machine direction. Each of the nonwoven filters overlaps one edge of the core by 100 millimeters. This ensures that the joint is fully covered when rolls of EnkaDrain Wide are laid adjacent to another.

How EnkaDrain Wide is used for gas venting in landfills

Proper gas-relief performance is a major design element of every landfill. It requires the proper number and spacing of collection wells and trenches, adequate sizes and depths of well boreholes, as well as proper packing and sealing around the well screens. Gas-venting systems designed with EnkaDrain Wide remove gases from landfill caps by creating a void below the impermeable geosynthetic barrier. Enkadrain Wide collects the landfill gases and discharges these to conductive perforated drainpipes installed in gravel trenches. The gases are safely vented from the landfill via outlet points. The highest discharge capacity of EnkaDrain Wide is in machine direction. Ideally, the drainage mat should therefore be installed with the machine direction parallel to the expected flow direction. Thanks to the unique filament structure, passage of gas in the cross-machine direction of the composite is ensured. EnkaDrain Wide comes on large rolls with a width of five meters and a length of 100 meters. This supports speedy installation, an advantage for landfill contractors and project owners alike.

In addition to its use as venting layer in landfill capping layers, EnkaDrain Wide is also used as a drainage layer for rainwater as well as for side and base drainage .

What makes EnkaDrain Wide the ideal gas venting solution?

Features:

  • Highly pressure-resistant drainage composite
  • Successfully used for over 40 years
  • Long-term performance proven by landfill excavations
    and laboratory tests
  • Large roll size (5 m x 100 m)

Benefits:

  • Superior discharge capacity under high loads
  • High flow rates even at low gradients
  • Protects geomembranes from damage
  • Facilitates speedy installation
  • Cost-efficient solution
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  • Installation Manual
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  • EnkaDrainWide Landfills Installation manual
    Official Installation guidelines from the manufacturer
    PDF 4mb
  • Landfills
    Solutions Overview
    PDF 5mb
  • Drainage Composites
    EnkaDrain | EnkaDrain Wide | EnkaDrain CK
    PDF 3MB
Where to buy landfill drainage system?
China
Sales office
No.9 Xingtang West Road, Chunjiang Zhen, New District 213034 Changzhou, China
France
Sales office
Pacific Tower
11-13 Cours Valmy
92977 Paris La Défense Cedex, France
Hungary
Sales office
H-2040,
Budaörs;
Puskás Tivadar u. 5
Hungary
Germany
Sales office & Manufacturing
Glanzstoffstrasse1,
63784 Obernburg,
Germany
Netherlands
Sales, Manufacturing & R&D
Westervoortsedijk 73,
6827 AV Arnhem,
The Netherlands