Ash Beneficiation
Ash direct from a power station, or excavated from lagoons can be of variable quality, so to ensure consistently high standards of product quality, particularly of blended products, ScotAsh utilises advanced ash beneficiation technology.
Our leading edge electrostatic separation plant was manufactured by STI of Baltimore to our specifications and installed in 2002. It works by separating the mineral ash from the carbon (basically powdered, unburnt coal) between two highly charged plates, enabling the carbon content of the ash to be controlled within strict parameters and to levels as low as 2%.
We process a significant proportion of the ash we receive from the power stations into low carbon Pulverised Fuel Ash (PFA), which provides us with a highly versatile core product, ideally suited to high grade cementitious applications.
