Dewatering and treatment of slam and poisonous waste
Abstract
An SME from northern Sweden has developed and refined technology for freeze dredging that also holds applications in waste management and dewatering of slam. Specifically if the slam is holding toxic components or "hidden" fuel that can be made commercial in a "waste to energy" context. The technology is automated and tailor-made solutions are developed for different applications. The company is looking for partners that can provide applications where dewatering of slam is a problem.
Description
Freezing has historically been applied for stabilisation of soil and rock during underground construction work or excavation. The company has developed the technique for underwater use - the method is called Freeze Dredging and can be used not only for uptake of sediments and rescue of objects, but also for dewatering of slam and waste.
It is a dynamic method that can be adapted to the specific conditions of a site.
The technology is mobile and independent of stationary power supply. It prevents diffusion of particles and contaminated pore water.
The company is looking for strategic partners working with waste treatment, specifically difficult slam, and companies working as consultants or researchers in slam treatment or soil and water remediation. Also companies developing methods for separation of water from soil is of interest.
Innovative Aspects:
Industrial process covering dewatering and soil treatment
Reduction of toxic components from slam and waste
The significant strength of frozen soil-water mixture is used for engineering purposes.
Advantages are found within:
- Controlled environments
- Recovery of energy (fuel) from waste
- Very rapid dewatering of fine slam
- Poisonous chemicals and materials recovery and cleaning
