Tecosol offers turnkey soil treatment services in Quebec and, in most cases, treatments are guaranteed. Tecosol then takes care of managing the contamination for a fixed rate established between Tecosol and the customer. For examples of cases throughout Quebec, click here.
The Soltec in situ process consists in injecting a mixture of solid, liquid and gaseous reagents directly into the soil. It is used to treat soil and groundwater contaminated by hydrocarbons and other organic products (HP C10-C50, BPC, HAP, BTEX, etc.). The physico-chemical reaction (oxidation) occurs in less than 24 hours, directly in the soil, when it comes into contact with the reagents. This process does not require excavation.
The method consists in mixing the various reagents in the Tecosol mobile unit. The processing time and the dosage of the reagents are determined and adjusted according to the concentrations, the nature of the contaminants and the type of soil. This mixture of reagents is injected directly into the horizon of the contaminated soil. This occurs under pressure, using specially designed wells.
Injections can be made beneath buildings, underground reservoirs, roads or other infrastructure using directional drilling. These can be processed in factories, industries and other buildings where the underlying soils and groundwater are contaminated without interrupting daily operations and activities.
The Soltec in situ process has many advantages:
There is an alternative to the Soltec process, which can be applied in a processing unit (mixer). This option is preferable in cases where contaminated soils are already excavated or where contaminated soils with low permeability does not allow in situ injection of the reagents. The Soltec mixer was developed in collaboration with Fournier Industries.
Contaminated soils are mixed with Soltec reagents in the mixer directly. The processing time and the dosage of the reagents are determined and adjusted according to concentrations, the nature of the contaminants and soil type. Continuous mixing of contaminated soils and reagents makes it possible to treat soils, which can then be repositioned on-site.
The Soltec on-site process has many advantages:
Tecosol also offers the option of remediation via excavation and off-site management. This method involves excavating the contaminated soil with shovel excavators and transporting the soil to an authorized centre.
This option may be preferred in the following cases:
Régie du bâtiment au Québec (RBQ) (licence : 5733-2017-01)