Contaminated Land Remediation Techniques

With lots of human activities on the environment, most sites get soil contamination due to the chemicals used especially in mines. Also excavations cause toxic gases from deeper within the ground to reach the surface of the soil thus contaminating the land. In this regard therefore, there need to be an elaborate plan to rehabilitate the contaminated sites and make it economically viable. This process of rehabilitating contaminated land to make it economically viable is commonly referred as contaminated land remediation.

Contaminated land remediation is an elaborate process that can be carried out by environmental government agencies or private individuals/companies to ensure that we stay in a secure environment free of toxic materials. There are many techniques that can be used to ensure the sustainability of the contaminated sites. Some are simple while others require advanced technology depending on the level of contamination and the type of contaminants involved.

There is no specific method for soil remediation. The remediation process is contaminant specific. If you feel, that your land is contaminated and you need it to be remediated, it is advisable to seek the services of contaminated land consultants to help identify the type of contaminants available in your site and advise on the best remediation technique for that matter.

The contaminated land remediation process starts with the basic idea of site investigation. Soil or ground investigation will enable the researchers determine the kind of contaminants available in the soil. With this in mind, the researchers/environmentalists will be able to come up with the best method for remediating the contaminated land. Some of the most commonly used soil techniques include:

Thermal Desorption

Essentially, this process involves heating the soil to certain levels of temperatures to remove certain contaminants. By doing so, the concentration of certain contaminants is reduced. This process is especially used for sites contaminated with hydrocarbons. The advantage of this process is that some of the desorbed contaminants can be recovered for use.


Bioremediation is the use of biological process to rehabilitate contaminated soil. It involves the enhancement of biological processes to with the intent of reducing contaminants/toxins to manageable levels. This process is commonly used in the remediation of organic contaminants such as fuel and fuel oils.


Soil environmental stabilization involves the process of tieing contaminants so as to reduce the risk of the contaminants. Essentially, stabilization involves the stabilizing contaminants from their dangerous forms to more stable form through the application of immobilizing agents.

Soil Washing

This is basically the process of sorting out different soil components such as sand, gravel and other soils separately. Some contaminants are more common in some type of soil constituents than others. Therefore, by so doing, the soil constituents with the contaminants are isolated and it can be easy to treat the contaminants at this level. The rest of the soil is thus safe for use. You can check this video about land remediation services: