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Phosphate Apatite Metal Stabilisation

This is a remediation technique that is applicable for the treatment of heavy metal contaminated soils.

Phosphate Apatite Metal Stabilisation is a remediation technique that is applicable for the treatment of heavy metal contaminated soils. The treatment works by sequestering the mobile Heavy metal into an immobile stable phosphate phase. The proprietary additive TRAPPS™ is a dry, granular product, which is suitable either for in-situ (via rotovation or tilling directly into the contaminated material) or ex-situ (using conventional plant such as pug-mill mixers or Allu buckets) mixing. Phosphate Apatite can be used for the stabilisation of various heavy metals such as lead, arsenic, antimony, cadmium, chromium, copper and zinc. It can also be used to stabilise uranium-contaminated material. It is particularly good for lead.

The addition of Phosphate Apatite to a contaminated soil / waste brings about a chemical transformation of the soluble metals to immobile, stable phosphate minerals.

Phosphate Apatite provides a time release source of phosphate for ongoing stabilisation and treatment of targeted heavy metals making it ideal for barrier applications.