SOIL DECONTAMINATION WITHOUT EXCAVATION

Call us : 450-922-1410

Decontamination

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.

IN SITU

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.

APPLICATION

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.

AVANTAGES

The Soltec in situ process has many advantages:

  • Treat soils located beneath infrastructure
    (buildings, roads, etc.)
  • Commercial/industrial activities can continue during treatment
  • Avoid costs associated with excavation, soil transportation, backfilling, etc.
  • Faster than other in situ treatments
    (e.g. biodegradation)
  • Decontaminate soil in an eco-friendly manner

On SITE

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.

APPLICATION

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.

AVANTAGES

The Soltec on-site process has many advantages:

  • The Soltec on-site process has many advantages:
  • Treat excavated soil directly on-site
  • Avoid costs related to land transportation, backfilling, landfilling, etc.
  • Faster than other on-site treatments (e.g. biodegradation)
  • Decontaminate soil in an eco-friendly manner

EXCAVATION 

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:

  • Emergencies (spills, accidental leaks, incidents, etc.)
  • When dismantling petroleum equipment at a service station
  • When time is an important factor
  • In addition to the in situ treatment
  • Where soil conditions or the nature of the contaminants do not allow the application of the in situ treatment

RBQ License

Régie du bâtiment au Québec (RBQ) (licence : 5733-2017-01)

Sales office

99, boul. des Hauts Bois #209
Ste-Julie, QC J3E 3J9

Technical office

*This address has no mailbox*
159, rue Caouette Ouest
Thetford Mines, QC G6G 7M6

Fax:
450-922-4774
Email:
m.dufresne@tecosol.com

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