Client: Land and Water Services Ltd
Location: Waste Treatment Centre, Wheal Jane, Truro, Cornwall
Contract Value: £86,500
Bio-accelerator – Rapid bioremediation of hydrocarbons.
Cementex – Guaranteed stabilization of heavy metals and phytotoxic contaminants.
The Falmouth Cruise Project comprised dredging works to create a deeper and straighter new navigation channel and to deepen the water berth along Queens and Northern Wharves.
Disposal of dredged material at sea was constrained by the local oyster and mussel beds. Dunton Environmental were able to provide treatment and dewatering of 2,500m3 of contaminated dredging spoil at our fixed treatment centre to achieve beneficial land re-use.
- Land and Water were undertaking maintenance and capital dredging works to improve navigation and cruise facilities at Falmouth Docks, Cornwall. The main purpose was to facilitate sustained long-term growth of Falmouth’s cruise business.
- CEFAS grab sample analysis indicated the finer fraction was contaminated with petroleum hydrocarbons and not suitable for disposal at sea due to local oyster and mussel beds.
- Options available for disposal on land were limited as the dredged material was classified as hazardous waste under the Waste Framework Directive. The high moisture content further prohibited landfill disposal.
- Dunton Environmental was able to provide a sustainable solution to landfill disposal at our fixed waste treatment centre located at Wheal Jane, Truro, Cornwall.
- In order to service the UK and Ireland’s marine industry, Dunton has developed a unique solution that combines:
- Dewatering techniques by applying our Cementex ™ product.
- Separation of size fractions.
- Destruction of contaminants of concern using our in-house Bio-Accelerator ™ and Regener8-19 ™ product range.
- The treated material was then re-used in the restoration of the former quarry landfill at Wheal Jane.