Modern day landfill requires construction of a fully encapsulated cell for waste containment with a sound leachate collection system and gas extraction as part of the capping.
ALYAF offers wide range of specialist products in compliance to the GRI Standards for this application that include
Mining of ores typically involves the use of heap leach pads which typically employ a
The aggregate drainage layer also referred to as heap Leachate pad basal drainage layer is essential to collect and convey the leachate. For mining applications, the design and construction raises the following concerns
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Why Choose Our Geomembrane
Thick aggregate drainage layer requires large volumes of primary aggregate that is expensive, as primary aggregate is not always locally available and has to be sourced or extracted.
The environmental and project costs associated with transporting aggregate from a quarry. One truck load of ALFDRAIN = or > 5000 tonnes of drainage aggregate!
Further the aggregate is aggressive on the geomembrane and by itself can easily puncture the geomembrane. Hence necessitating the need for a robust geotextile protection layer.
Aggregate drainage occupies heap pad void space which could otherwise be used for mineral rich ore.
ALYAF with its extensive experience in the design and construction of leachate drainage systems coupled with the international experience of its partner GEOfabrics offers ALFDRAIN geocomposites that perform multiple functions as detailed below
ALFDRAIN geocomposites used in conjunction with a substantially reduced depth of aggregate whilst still maintaining the same fluid extraction performance. This demonstrates a direct benefit in terms of
ALFDRAIN geocomposite in fact protects the geomembrane. Hence there is no need for a heavy geotextile protection layer.