Dedicated to the open sharing of information and ideas on the economy, ecology, science, and legal equities of fly ash - one of the planet's most abundant materials.
(Biomass Power and Thermal 9-20-2011) Biomass fuel is being incorporated by some coal-based power plants as an alternative to cocombustion or cogasification with coal. This cofiring strategy has demonstrated reduced sulfur and nitrogen emissions and could be used as a strategy to reduce the net carbon dioxide (CO2) emission impact of a power plant. Some consider the combustion of biomass to be essentially CO2-neutral because although the biomass produces CO2 on combustion, CO2 is taken up by the plant during its growth.
(Equipment World 9-12-2011) The cost to build roads, runways and bridges would increase by an estimated $104.6 billion throughout the next 20 years if coal fly ash is no longer available as a transportation construction building material, according to a new study by the American Road & Transportation Builders Association’s Transportation Development Foundation (ARTBA-TDF).
(MIT News 8-29-2011) Concrete is one of the most extensively used materials worldwide — on average, more than two tons per year of the rock-like stuff is produced for every man, woman and child on Earth, making its use second only to water. And that vast amount of new concrete is responsible for somewhere between 5 and 10 percent of global greenhouse gas emissions, making it a significant target for improvements.
(National Geographic 8-15-2011) People don't usually see the ash left over from the electricity that's burned when they turn on their lights or run their air conditioners.
But at coal power plants, fly ash builds up every day, laced with heavy metals and toxins—one of the most difficult waste-management issues in the developed world.
(Energybiz 8-10-2011) Congress is on respite. But the Environmental Protection Agency is on guard. Even before the contentious debt deal the regulatory body has been on the defensive and trying to fend off attacks from industry and those lawmakers who feel the body has gone too far and too fast.
(Lawrence Journal 7-25-2011) A new audit out of Lawrence City Hall has found that changes to design standards made by the city in 2003 have improved the quality of city streets.
“They are lasting longer,” said City Auditor Michael Eglinski, who conducts performance audits of topics selected by the City Commission. “The changes should produce better streets, but it is going to take awhile.”
(Electric Co-op 7-18-2011) The House Energy and Commerce Committee has voted to advance legislation to block the Environmental Protection Agency from regulating coal ash as a hazardous waste.
The committee approved a bill July 13 that would set up a new state-run plan to handle coal combustion residuals, a byproduct of coal-based plants that is commonly recycled as building and construction materials.
(Electric Co-op 6-27-2011) A House subcommittee has taken the first legislative step toward blocking the Environmental Protection Agency from classifying coal ash as a hazardous waste.
Saying EPA’s proposal would lead to high energy costs and stymie coal ash recycling in construction materials, the House Subcommittee on Energy and the Environment approved a new, state-driven plan to regulate handling and disposal of the material.
(Aggregate Research 6-22-2011) Geopolymer concrete, or green concrete, is part of a movement to create construction materials that have a reduced impact on the environment. It is made from a combination of an inorganic polymer and 25 to 100 percent industrial waste. Here is a list of 4 benefits to using green concrete for your next project.
1. Lasts Longer
(Wheeling News 6-21-2011) A bill to stop the regulation of fly ash as a hazardous material should come to a vote before a House subcommittee today, said the bill's sponsor, U.S. Rep. David McKinley.