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ARTA LECA

Applications

Filtration & water treatment

Filter bed and biofilm carrier in wastewater treatment and drainage systems.

Filtration & water treatment
The granule's porous internal surface gives biofilm somewhere to establish, which is why it is used in trickling filters and constructed wetlands.

Being chemically inert and resistant to attrition, the bed lasts without the periodic replacement other media need.

Recommended grades

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Geotechnical & infrastructure

Leca Infra 10–30

Lightweight embankment fill at a fifth of the weight of soil.

Grain size
10–30 mm
Loose bulk density
250–300 kg/m³

Horticulture & green roof

Leca Green Roof 8–16

The green roof drainage layer: light and frost-stable.

Grain size
8–16 mm
Loose bulk density
280–340 kg/m³

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