Treatment technologies are based on processes addressed to removal, stabilization or destruction of contaminants.
- Removal may be attained by contaminant mobilization and/or accumulation processes (leaching, sorption), contaminant concentration and recovery processes (physical separation) or a combination of processes (accumulator plants).
- In-situ stabilization consists of the contaminant being made less mobile and therefore less toxic by a combination of physical, chemical and biological processes.
- Contaminant destruction by physical, chemical or biological degradation (e.g. thermic or microbiological treatments).