Stabilisation / Solidification (S/S) reduces the mobility of contaminants in the environment, unlike other remedial technologies that remove them.
Excavated soil is mixed with a binder that sets and hardens to provide material suitable for re-use, including engineering fill and aggregate. Contaminants are immobilised within the soil through chemical or physical treatment.
The target contaminant group for S/S is generally inorganic (including heavy metals and radionuclides) and insoluble organic compounds.
