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ALYAF INDUSTRIAL COMPANY LTD.

Landfill & Mining

ALFDRAIN GEOCOMPOSITES REPLACE THICK AGGREGATE DRAINAGE AND GAS VENTING LAYERS.

BASAL DRAINAGE & PROTECTION

Modern landfill design requires a leachate drainage layer up to 500mm thick at the base of the cell. Aggregate drainage layers are expensive, use critical landfill space and add huge stress on the geomembrane.

ALFDRAIN is a composite drainage layer replaces aggregate and geotextile layers.

BASAL DRAINAGE & PROTECTION

Modern landfill design requires a leachate drainage layer up to 500mm thick at the base of the cell. Aggregate drainage layers are expensive, use critical landfill space and add huge stress on the geomembrane.

ALFDRAIN is a composite drainage layer replaces aggregate and geotextile layers.

BENEFIT OF ALFDRAIN

Guaranteed drainage performance – even with large deformation and soil pressure

Excellent durability – guaranteed as 100% prime grade virgin polymer

Meets all Environment Agency requirements for drainage composites

Tested to 100 years durability to all EN standards

Excellent interface friction properties

LANDFILL CAPPING

Typical components within a final cover system of
a modern landfill comprise of

Design practices vary from site to site and as a result of national regulation and local conditions.State of the art design in landfill engineering has evolved from the use of natural soils to factory manufactured geosynthetics which allow for improvements in safety, reduced environmental impact and economic savings.

PROTECTION & DRAINAGE LAYER

Combined protection and drainage can be achieved using ALFDRAIN composites, manufactured from 100% prime grade virgin polymer offering proven durability. ALFDRAIN composites can also be used below a capping membrane to provide an effective pathway for control and extraction of landfill gasses.

ALFDRAIN have been designed to provide a combination of membrane protection and drainage, offering a robust passage for both liquids and gasses.

The drainage core is manufactured from 100% virgin HDPE polymers surrounded by a strong durable filter that combines high permeability with an excellent impassable soil barrier.

GAS VENTING

ALFDRAIN gas venting layers are engineered to perform as a gas collection and venting system. They
may be used both in passive and active gas collection system.