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Treating Contaminated Soil
 


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Soil Remediation and Soil Treatment in Toronto and Ontario

Treating Contaminated Soil – Understanding Soil and Bio Remediation

Until recently there haven’t been many solutions for dealing with contaminated soils but with technological advances we now have ways to treat previously untreatable land and soils. This makes it possible to purify land so that it may be used for agriculture, dwellings, commercial use or even playgrounds and parks. At the same time, ridding the ground of unsafe contaminants will also support efforts to clean the air, water and the rest of the environment.

Soil remediation is the term used for various strategies that are used to purify and revitalize soil. The process of soil cleanup is part of a broader effort known as environmental remediation, which can also include efforts to purify the air and other wise repair damage done to the ecological balance of the planet.

There are a number of different methods currently employed in the process of dealing with soil contamination. To select the most effective strategy one needs to consider the nature of the contamination, how the method will impact surrounding wildlife or humans living in the general vicinity, and the degree of success that can be anticipated from the soil remediation effort. It is not unusual for a given tract of land to undergo more than one cleanup operation in order to deal with the presence of multiple contaminants.

Soil remediation is sometimes accomplished using a process known as pump and treat. Essentially, this approach involves the removal of contaminated ground water, then using various methods to purify the extracted liquid. While the water is purified, the soil is also extracted and filtered to remove various contaminants, then returned to its original position. The purified water is pumped back into the purified soil, effectively restoring the ecological balance of the area.

Bioremediation is an affordable, effective and environmentally sound means of treating hydrocarbon contaminated soils. The process also minimizes the amount of soil to be disposed of to landfill. There are essentially two types of soil bioremediation: in and ex-situ. In-situ, is the treatment of the soil in its location and ex-situ refers to moving and treating it elsewhere.

Bioremediation is the treatment of contaminated soil using micro-organism. Chemicals are used as nutrients and the addition of oxygen then accelerates the remediation process. A wide range of organic pollutants such as oil, petrol, creosote and phenols are used by natural microorganisms as sources of carbon and energy. The bioremediation process will degrade and detoxify the organic compounds to harmless products such as carbon dioxide and water. The variety of natural microorganisms and their high reproduction rates enable them to quickly adapt to a variety of pollutants. This process is considered to be a short to medium duration process depending on the concentration levels of the contaminates.

The bioremediation process must be performed in a confined and controlled environment. It is important to recognise that not all contaminated soils may be suitable for bioremediation and that there may be a need to provide further alternative treatments to accomplish the remediation.

Contact us to learn more about our soil remediation services.