DEWATERING AND GROUNDWATER REMEDIATION
Groundwater can contain contaminants or become polluted with organic and inorganic chemicals that can be a hazard to public health. For example, water can contain levels of organic substances such as iron, manganese, calcium and magnesium that are deemed too high to be safe by regulatory bodies. To resolve this, a variety of remediation techniques can be used.
At Alba Dewatering, we help by taking a sample from pumping systems and bore holes. Once these are analysed for types of contaminant, and the conditions are examined, we can recommend and carry out the best method for the job.
Biological Method
Biological remediation involves the use of microorganisms to break down unwanted chemicals that are sometimes not easy to separate from the water. The indigenous microorganisms break down the matter through biosparging and bioventing.
Chemical Method
Equally, chemical remediation is commonly used to remove hardness and heavy metals in groundwater. This is achieved through carbon absorption, ion exchange, oxidation and chemical precipitation. Chemical remediation is sometimes used with physical remediation to get the best results. However, it is one of the most costly and least cost-effective methods of remediation due to its prolonged timeline.
Physical Remediation
This method is used to treat groundwater which is contaminated by volatile organic compounds like petroleum hydrocarbons. Pressurised air can be used to strip the water clean – a method called air sparging – or water is pumped directly using filters to remove large gravel or rock, and then filtering the water biologically or chemically to achieve the best result.
If you have an enquiry about groundwater dewatering control and would like to consult with a member of our experienced team, call us on 01283 585 700 or email info@albadewatering.co.uk.
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