December 2010

Fly Ash and Mercury: Does Selenium in Ash Inhibit Methylmercury Bioaccumulation?

(Oak Ridge National Laboratory 2010) Selenium is known to have an antagonistic effect on the mammalian toxicity of inorganic mercury, and appears to play a role in reducing the accumulation of methylmercury in fish in some aquatic ecosystems. The Biological Monitoring and Abatement Program (BMAP) at Oak Ridge National Laboratory (ORNL) has measured mercury and selenium concentrations in largemouth bass over a 20 year span in a quarry that once received direct discharges of slurried fly ash.
 

Ash Resources Adds Quality to Construction

 (The Voice 12-17-2010) South African Fly Ash manufacturers, Ash Resources have announced great news not only for their shareholders, but also for players in the construction industry as they prepare for a major expansion into Botswana. On Monday the company’s representatives brought together construction industry players at the Gaborone International Convention Centre (GICC) as they outlined their wonder ash products that are, by all accounts, set to improve both the physical and environmental qualities of building materials.
 

Rocktron Launches Fly Ash Technology in Asia

(European Plastics 12-9-2010) UK-based RockTron has signed a deal with Malaysian energy provider Tenaga Nasional Berhad (TNB) to transform fly ash into materials such as fillers and extenders in polymers, as well as cementitous substances. RockTron launched its recycled fly ash technology last year. The company extracts high performance fillers from the waste ash produced at coal-fired power stations, using the recovered products in bulk applications and some high performance fillers.
 

Vectren Showcases Recycling Project at Posey County Power Plant

 When Vectren burns coal at its power plants, electricity isn't the only thing that's produced. The coal combustion process also produces fly ash, a particulate matter that the Evansville-based utility company must dispose of properly. Vectren's fly ash used to end up in ash ponds or landfills, but now it's being used as a component in the manufacture of concrete.
 

Wisconsin Beneficially Reuses 85% of Statewide Coal Ash

(Newswire 12-1-2010) The Wisconsin Department of Natural Resources is showing the nation how the smart use of coal ash, bottom ash and gypsum from coal-burning operations in construction projects can save dollars and protect Wisconsin’s air and water quality.
 
Coal ash, bottom ash and gypsum, the byproducts from burning coal to produce electricity, are under consideration by the U.S. Environmental Protection Agency to be classified as a special hazardous waste to be managed as a solid waste.