Fly Ash Value Preservation
Amended Silicates is 100% compatible with fly ash use in concrete products. It is also non-flammable and non-abrasive. By using Amended Silicates for mercury control, utilities enjoy the dual benefits of preserving the beneficial use and value of fly ash as a portland cement replacement, while avoiding costs associated with landfill disposal.
The U.S. Department of Energy’s National Energy Technology Laboratory (DOE/NETL
) estimates the beneficial use value of coal fly ash to be $18/ton, while landfill costs are estimated to be $17/ton. This indicates a net benefit of $35/ton of fly ash to a plant selling its ash as a portland cement replacement simply by adopting Amended Silicates for mercury emission control.
Amended Silicates offers significant cost savings over powdered activated carbon
in terms of avoided landfill disposal costs and loss of fly ash value.
Based upon coal fly ash usage data from the American Coal Ash Association (ACAA
), adoption of Amended Silicates for mercury emission control is estimated to save the utility industry up to $440 million annually (fly ash sales revenue plus avoidance of landfill costs).
Specifically, a power plant that generates 60,000 tons of fly ash annually could save a combined $2.1 million per year in fly ash sale revenue and the avoidance of fly ash disposal costs simply by selecting Amended Silicates over powdered activated carbon for mercury control.