Bioremediation of Contaminated Soils and Sludges
We use and are developing further natural remediation techniques (bioremediation)
and composting processes to improve the quality of materials including:
- Gully sludge (arisings from road gullies including hydrocarbons, oils
, chemicals heavy metals, salt, grit, soil)
- Pipeline piggings (pigwax)
- Tank bottom sludges
- Contaminated straw and hay from filters
- Waste from petrol interceptors, catch pits and settlement tanks
- Contaminated soil (with hydrocarbons, jet fuel, acid mine drainage)
To date we have focused mainly on hydrocarbon rich sludges and soil
from the oil industry and companies maintaining road gullies having successfully treated
their hydrocarbon rich effluents and contaminated water.
Our objective is to utilise bioremediation and composting techniques to recycle the
various materials currently specified as a special waste into a useful soil
product. Special waste can only be disposed of in designated landfill
sites and is a very expensive option. In the case of
contaminated soils we treat material so it can support native vegetation and
a healthy ecology.
In the case of gully sludge, we have been able to
transform it into British and European agricultural grade compost supporting earthworms and
the range of healthy soil microorganisms to be used in the reinstatement
of road verges, capping landfills, landscaping applications. Through mixing
it with subsoils that were also considered a waste product we have
created a high quality topsoil substitute. This company saves approximately £ 25,000 per year
(tipping and landfill charges and transport) and also receives an income when the final product is sold to the end user.
Most of the remediation carried out for oil companies are for in
situ clean-up operations and all materials are transformed and utilised
on site for landscaping and increasing biodiversity.