When dangerous chemicals are not used, handled, or disposed of properly, the soil may be polluted by a variety of human activities. Soil contamination is most common in urban areas and former industrial sites, where manufacturing, industrial dumping, land development, waste disposal, and overuse of pesticides and fertilizers are all possible.
Some pollutants are added to the soil surface, such as agricultural chemicals. Others are released underground as a result of leakage from underground tanks, drainage pipes, or landfills. Hazardous compounds in the atmosphere can also be a source of problems. However, have you ever thought that you can get rid of this contaminated soil? Therefore, here are the top ways to get rid of contaminated soil.
The use of biological processes to degrade, alter, or essentially remove pollutants from soil and water is known as bioremediation. Microorganisms, such as bacteria and/or fungi, use the contaminant as a food source in this phase. As a result, bioremediation is commonly used to remove organic pollutants from the environment and can be an important method of mitigating:
- halogenated organic solvents
- halogenated organic compounds
- non-chlorinated pesticides and herbicides
- nitrogen compounds
- metals (lead, mercury, chromium)
Bioremediation is also a more cost-effective alternative to disposal, but it can take anything from one to several months to complete.
2. Soil Stabilization
By effectively trapping pollutants in the soil, stabilization decreases the possibility of pollution. It can be accomplished in two ways: first, by changing the contaminant in the ground to a less harmful shape, and second, by solidification, which reduces the contaminant’s mobility and binds it in place, preventing it from reaching any receptors.
The addition of immobilizing agents to the soil reduces the leachability and bioavailability of pollutants. Due to higher resistance and lower permeability, this method can also be used to increase the geotechnical competency of the earth, making it more suitable for construction work.
3. Chemical Oxidation
Chemical oxidation, in which reactive chemical oxidants are pumped into the soil and groundwater for rapid and full contaminant degradation, is the most common form of chemical decontamination. In situ chemical oxidation (ISCO) is a flexible solution for removing pollutants from difficult-to-reach locations, such as deep soils or soils underneath houses. Chemical oxidation has many uses, including the treatment of organic pollutants such as TPH, BTEX, and PCBs.
4. Soil Washing
Through cleaning the soil with a liquid wash solution, harmful substances are removed. Fine-grained soils, such as silts and clays, are washed away during this process, along with pollutants that are more likely to bind to fine soils. As a result, polluted fines are isolated from clean coarse-grained soils, such as sands and gravels, which can be reused safely. Since soil washing does not eliminate or kill pollutants, the polluted soil must be disposed of in a licensed facility.
Pro tip: Best way is to Hire Skip Bin
Certainly, none could pick up the waste better than the skip bin company, and when it comes to the disposal of soil hire a skip bin right away to avoid any mess!
How To Do Soil Contamination Testing?
The following are the ways through which you can test for contaminated soil.
Check For Asbestos:
Many companies offer a fast-tracked soil sample testing kit that can be used to test for asbestos or other soil contamination if you think your construction site is polluted. If your site has been polluted, we will help with contaminated soil removal, remediation, and disposal.
When dealing with soils that have been tainted with asbestos or other contaminants, the typical thought process is to send the substance to a landfill as hazardous waste.
Excavation and disposal are often used to fix asbestos soil remediation, which is costly and usually attracts toxic disposal charges at the higher rate of landfill levy.
Harmful Effects Of Soil Contamination
People and animals are exposed to soil contaminants in a number of ways, including ingesting soil, inhaling toxins and dust, absorbing contaminants through the skin, and consuming food produced in polluted soil. Soil contamination may have significant health consequences depending on the type of contaminant and the extent of exposure.
What Activities Cause Soil Contamination?
Soil is a non-renewable resource that cannot be replenished after it has been eroded. Soil contamination is the permanent alteration of a soil’s main characteristics, such as fertility, pH, color, humus content, or structure. Soil contamination is caused by wind or harsh weather conditions, but it can also be caused by human activities such as;
Overgrazing: occurs when farmers have too many animals on their lands, such as sheep, cattle, or goats. By consuming the vegetation and then digging into wet soil or compacting dry soil with their hooves, the animals do damage to the soil surface. This will prevent grass from growing and will hinder water percolation through the soil.
Overcropping: when land is continuously cultivated and not permitted to lie fallow between crops, it is referred to as continuous cultivation. Since the field is continuously ploughed or stripped for crop growth, the soil’s capacity to generate useful humus for soil fertility is reduced.
Deforestation: it is the destruction of large swaths of woodland, resulting in an open, exposed landscape. Deforestation occurs for a variety of purposes, including the selling of timber, charcoal, or as a source of fuel, and cleared land is used for livestock pasture, commodity plantations, and settlements.
This cannot be denied that soil is an essential part and deals with a lot for the progress of the country, however, to avoid soil contamination make sure you take the best measures as mentioned above. Still, if there is confusion hire soil skip for better disposal.
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