Soils Washing & Contaminated Soils Washing Expertise and Equipment
Concrete and Aggregate Washing to remove Hydro Carbon Contamination.
We have provided design and build solutions for both large scale projects and can also supply mini project feasibility testing equipment.
Previous Project Involvement
Woolwich Arsenal
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The reclamation of the 15ha Woolwich Arsenal site involved the treatment of 240,000m³ of contaminated material by a soil washing plant.
The customer opted for soil washing due to the physical nature of the affected material and the planning requirement to keep lorry movements to a minimum. Following screen testing for explosive residues and the separation of materials of different sizes, soil was washed, crushed and screened to allow as much as possible to be re-used in the subsequent re-engineered ground works operation.
Phase 1 involved the treatment by soil washing of 130,000 m³ of material. Phase 2 extended the washing to a further 45,000m³ (amounting to an additional 75,000 tonnes). During Phase 1, daily outputs of 1,000 tonnes were not uncommon and between 250 and 500 tonnes were normal. Between 80 and 85% of the input material was re-used, of which 70% was gravel and 30% was sand.
Bristol Diesel Depot
Temple Quays Stage 3
The soil washing process involved a range of processes including separation by particle size, screening and crushing, attrition, de-sanding, de-silting, fines flocculation and sludge de-watering by centrifuge.
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Approximately 35,000m³ of contaminated materials were treated to reduce concentrations of a variety of contaminants to specified target levels using plant specified and manned by our operators approximately 80% of the treated material was re used on-site. A daily average output of 700 tonnes was achieved.
People we work with
