Remediation methods play an essential part in cleaning contaminants from soil and water. Remediation is the process of cleaning up contamination at sites and to reduce or eradicate this pollution from the soil or groundwater for future use. The contaminated soil or water is collected and moved, to be disposed of, treated or can be destroyed on site. There are different methods, physical, chemical and biological.
Containment – this is a common method which aims to contain the contamination groundwater or soil at the site in question or to divert it away from that site. This is done to minimise the pollution coming into contact with people, the environment and to avoid further contamination to occur. Cutoff walls are constructed, as well as trench excavation. For more information on Soil Remediation Services, visit Soilfix, providers of Soil Remediation Services
Pump and Treat – another process used for soil and groundwater remediation. Water is pumped to the surface and contamination removed using air-stripping, carbon activation, ozone treatment, biodegradation or ultra-violet. This process is commonly used for contaminants that dissolve in groundwater. This method doesn’t work so well with clay and silts and can be expensive if used long-term.
Soil Vapour Extraction – this method uses vapour extraction wells to eradicate volatile pollutants from soil. An extraction well is linked to a pipe in permeable packing. Pumped air strips carry the contaminants to the well. The vapour is transported to a vapour-liquid separator with contaminants removed by a vacuum blower.