New Tech Uses Fly Ash to Decrease Vehicle Weight

( Earth 911, 3-24-2011) Researchers have found a way to use fly ash – a byproduct of coal combustion – as an additive to create lightweight metal foams that could replace heavy aluminum and magnesium parts in automobiles.

Proposed EPA Coal Ash Rule Drawing Heat from Industry

(Courier Press 2-20-2011) A House committee reviewing a laundry list of federal regulations that industry representatives deem excessive is taking a look at a proposed Environmental Protection Agency rule that could result in coal ash being declared a hazardous waste.
The House Oversight and Government Reform Committee, operating under a new Republican majority, solicited input from business groups regarding regulations standing in the way of economic expansion. Of the 201 responses the panel received, at least 13 cited the EPA's attempt to control coal ash.

TVA to Convert Kingston Gypsum from Wet to Dry Storage

(Chattanooga Times 2-19-2011) Less than a year after installing new coal scrubbers at its Kingston Fossil Plant, TVA is spending $53 million to change the way it handles the gypsum ash produced in the process.T VA directors on Friday agreed to build a new gypsum dewatering facility in Kingston, where ash leaks over the past two years have polluted the nearby Emory and Clinch Rivers.


 (Waste Management World 2-15-2011) The U.S. House Energy and Commerce Committee's Environment and the Economy Subcommittee today held a hearing on "Environmental Regulations, the Economy, and Jobs." The panel, chaired by Rep. John Shimkus (R-IL), examined how and whether federal regulatory agencies are conducting the type of economic analysis necessary for policymakers to understand how regulations affect employers' ability to retain workers and hire new ones, and avoid unnecessary cost burdens.

Iowa Universities Announce Results of Groundwater Analysis at Coal Ash Disposal Site

(Iowa State University 2-7-2011) The results of voluntary groundwater testing beneath a quarry where the University of Iowa, Iowa State University and the University of Northern Iowa deposit coal and biomass ash have shown levels of the sampled constituents all well below state and federal standards.
Levels for many constituents were so low that laboratory equipment had difficulty detecting anything but trace and statistically insignificant amounts.

Concrete Producers Paid for Substituting Supplementary Cementitious Materials Instead of Portland Cement

(Aggregate Research 2-4-2011) Several innovative concrete producers are earning financial incentives through Cool Climate Concrete (C3), a greenhouse gas offset program, for substituting supplementary cementitious materials (SCMs) for portland cement during concrete production in the United States. These producers receive an incentive of $4 per metric ton of avoided carbon dioxide (CO2) emissions resulting from reducing portland cement use beyond established baselines.

Fly Ash May be Key in Concrete

(Missouri University of Science and Technology 1-31-2011) A researcher at Missouri Univ. of Science and Technology is leading a study to increase the amount of fly ash used in concrete. If successful, the effort could divert millions of tons of the waste product away from ponds and landfills and reduce CO2 emissions. 

Recycled Aggregate for Carbon Neutral Concrete

 (Sustainable Construction 1-27-2010) With the development of environmentally conscious construction projects across the world, there are still many demands of building materials that today’s technologies have not yet satisfied.  Looking at the two main structural building materials, steel and concrete, one in particular lacks characteristics of carbon neutrality.  While steel is nearing full recycled production, concrete remains a very carbon intensive process.  The main contributor to this trait is portland cement.

LEED Gold Luxury Up for Auction Uses Fly Ash

 What’s big, green, and gold, and headed for auction in Aspen, Colorado? Vision House Aspen, Aspen’s first Gold LEED- certified home, billed as pairing “environmentally friendly features with luxury mountain living,” slated for sale at a live, on-site auction on January 28, 2011.

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.