Soil remediation removes contaminants from soil—hydrocarbons, heavy metals, and creosote all present property owners’ problems. There are different methods of fixing soil. Soil remediation can be done using natural means, such as certain types of bacteria. Additionally, thermal soil remediation, air sparging, and encapsulation may be effective. The most immediate kind of remediation is the removal of the contaminated soil and replacement with clean fill. Soil contamination has profound, long-term, and harmful effects on ecosystems and property. Many animals absorb soil contamination in one form, and soil contamination can cause massive die-offs. This, in turn, can cause more problems. Humans may become permanently sick due to soil contamination.
Water Remediation for groundwater contaminated through accidental spillage or leaks and chemicals involved in soil pollution are petroleum hydrocarbons, pesticides, lead, and other heavy metals. Soil contamination can also happen due to underground storage tanks rupturing or the leaching of waste from landfills. Mining, fertilizer application, oil and fuel dumping pesticides, cyanide, volatiles, creosote, and many other environmental issues. Contaminated Soil, Groundwater Remediation, Surface Water Remediation following spill incidents or site decommissioning.
Surface water remediation is very similar to groundwater remediation, except it is far easier to access water above the soil. Surface water is exposed to many different elements. Still, water is a natural breeding ground for insects, bacteria, and other things that are generally harmful to humans. Surface water remediation matters because humans are more likely to contact surface water than they are with groundwater. Problems are a bit simpler to find, and it may be a bit easier to take care of them.
Sediment Remediation is a mix of water and soil remediation. When you mix the two, new circumstances are created, and thus new problems may arise. Contaminated sediment such as soil, sand, organic matter, or other material accumulates at high levels at the bottom of a water body containing toxic materials. Sediment Remediation can affect both the water and the soil.
Some Soil rehabilitation operation sites
- Urban environments
- Brownfield redevelopment
- Urban mining
- Mining and raw material extraction areas
- Opencast coal mines
Mining heaps - Mining terrains that have subsided
- Quarries and open-pit mines
- Peatlands
- Crude Oil
Some of Our Soil Remediation Methods:
- Chemical decontamination methods generally focus on chemical oxidation, whereby reactive chemical oxidants are injected into the soil and groundwater for rapid and complete contaminant destruction.
- Soil Stabilisation reduces contamination risks by effectively locking contaminants in the soil. It can be achieved in two ways: firstly, by modifying the impurity in the ground to a less dangerous form; secondly, through solidification, by reducing the mobility of the pollutant and binding it in place so it can’t reach any receptors.
- Soil washing eliminates hazardous contaminants by washing the soil with a liquid wash solution. During this process, fine-grained soils, such as silts and clays, are washed away with pollutants, which are more prone to bind to fine soils. Thus, contaminated fines are separated from cleaned coarse-grained soils, such as sands and gravels, which can be safely re-used. Soil washing does not destroy or remove the contaminants; therefore, the contaminated soil must be disposed of in a licensed facility.
- Thermal soil remediation is a method that removes specific types of contaminants that are best removed by subjecting soil to high temperatures. This process is typically reserved for soil tainted with contaminated water or hydrocarbon compounds such as oil or other petroleum products. Usually, this occurs in an oven, fed by the conveyor belt.
- Encapsulation remediation separates instead of filtering them. Essentially, encapsulation ensures that the pollutants can’t spread further than they already have, which acts like a medical quarantine.
- Air sparging involves injecting large amounts of air into a contaminated soil stratum to force organic vapors outwards to be treated by carbon filtering. Unlike other methods, air sparging must be applied directly to the soil instead of extracted soil in a treatment unit. Air sparging is commonly used for removing hydrocarbon pollutants, but it’s best used in cases where the soil can’t be removed from the site.
- Bioremediation is also an in situ remediation technique but uses a biological mechanism rather than a mechanical filtering method for removing contaminants. Contaminated soil is treated in situ by applying engineered aerobic and anaerobic bacterium that feeds on the specific contaminant with which a parcel of soil is contaminated.
- A monitoring-well oil skimmer remediates various oils, ranging from light fuel oils such as petrol, light diesel, or kerosene to heavy products such as No. 6 oil, creosote, and coal tar. It consists of a continuously moving belt on a pulley system driven by an electric motor. The belt material has a strong affinity for hydrocarbon liquids and for shedding water. As the belt moves through this interface, it picks up liquid hydrocarbon contaminant, which is removed and collected at ground level as the belt passes through a wiper mechanism. To the extent that hydrocarbons settle at the bottom of the monitoring wells and the lower pulley of the belt skimmer reaches them, these contaminants can also be removed by a monitoring-well oil skimmer.
- Dual-phase vacuum extraction (DPVE), also known as multi-phase extraction, is a technology that uses a high-vacuum system to remove both contaminated groundwater and soil vapor. In DPVE systems, a high-vacuum extraction well is installed with its screened section in the contaminated soils and groundwater zone. Fluid/vapor extraction systems depress the water table, and water flows faster to the extraction well. DPVE removes contaminants from above and below the water table. As the water table around the well is lowered from pumping, unsaturated soil is exposed.