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Soilutions

Specialists in the remediation of contaminated soils and groundwaters

You are here: Home / Services / Soil Remediation / Soil Chemical Oxidation

Soil Chemical Oxidation

Soilutions specialise in the treatment of contaminated soil through chemical application.  The most common form of treatment is chemical oxidation (chemox for short).  Other forms of treatment include the chemical reduction of contaminants, and enhanced natural attenuation where appropriately selected materials are injected to achieve remedial targets.

Chemox involves oxidising contaminants with the purpose of reducing the concentration.

The main benefits of Chemox are that contaminated soil and water can be treated in-situ (in the ground), and in difficult to access area.  Applying the chemical through injection lances (at pressure) essentially means that if the materials are accessible with a drill rig, then they can be treated with chemox.  As usual the suitability of chemox for your site depends on many factors.

Chemical oxidation

Soil mixing is also an effective technology for the application of chemical oxidation treatments to contaminated soil and water.

combined chemox stabilisation persulphate

See our case studies by clicking here.

Chemox?
Chemox has wide ranging applications including the treatment of organic contaminants (e.g. TPH, BTEX, PCBs to name a few). The theoretical application is simple, chemox essentially destroys the contaminant. The majority of the effort put in to chemox remediation is to get the chemox to the contaminant, for ex-situ applications this is much easier, for in-situ applications chemox can be a double edged sword.

In-Situ Chemical Oxidation (ISCO) is predominantly used as a remediation technology for contaminants located in soils and/or waters which are difficult/expensive to access for example soils at depth or soils beneath buildings. The main benefit is that awkward to accesses materials can be treated at low cost / disturbance to the client.

Depending upon the type of soils, depth of groundwater amongst several other factors, an ISCO system can be designed to target contamination.

We’ve had good success with chemical treatment using direct push injection and soil mixing.

If you’re interested in knowing more, or would like some advice regarding a specific site then please phone us (0131 538 8456), we’ll be more than happy to talk to you, or drop us an e-mail.

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Resources

Our eBooks available for download:
Phase 1 Desk Studies / PRA Explained
Phase 2 Site Investigations Explained
Guide to Oil Spill Response
Guide to Soil Remediation
Guide to Waste Soil Classification
Guide to Giant Hogweed Removal
Guide to Japanese Knotweed Removal
Guide to Rhododendron Removal
Certificate Number 10312
UK Spill Contractors Accreditation Scheme
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