Stabilisation

Stabilisation/solidification/ (S/S) is a remediation technology that relies on the reaction between a reagent and soil to reduce the mobility of contaminants by the process of sorption,\ precipitation into insoluble salts, incorporation into crystal lattices, and/or by physically encapsulating the contaminants at molecular level or en-masse.

Within the sorption based process the mixture of reagents and additives used for S/S is commonly referred to as the binder and can range from a single reagent to a multi-component system.   Commonly used binders are pozzolanic materials or organophilic clays.   These reagents are produced by industrial chemists to suit the predicted contaminants and soil matrix.

The precipitation process targets specific contaminations by employing proven technologies from the USA and innovative chemical recipes from the maturing European market.   Further research is sponsored through academic institutions.

HBR has invested in specialist mixing plants which ensure that the Laboratory based processes can be conducted within the construction environment in a manner which doesn’t jeopardize that efficiency of the essential chemical and physical reactions.   This requires the controlled addition of various reagents, vigorous mixing and precise batch records to support the regulator approvals.

S/S is capable of remediation of soils containing:

- Metals and metalloids                          

- Polyaromatic Hydro Carbons (PAH’s)

- Radio Nodules

- Dioxins

- Inorganic Cyanides