power plant ash Articles
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Commercial Demonstration of a PEM Fuel Cell for Power Generation
The chlor-alkali industry, one of the largest chemical industries in India and growing at an annual rate of 3.3%, is expected to grow along with the growing Indian economy. This MW size proton-exchange membrane (PEM) fuel cell product captures hydrogen produced in the chlor-alkali industry to create on site electricity and provide plant operators up to 20% of electricity savings. The electricity ...
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A Pilot Study of Mercury Liberation and Capture from Coal-Fired Power Plant Fly Ash
The coal-fired electric utility generation industry has been identified as the largest anthropogenic source of mercury (Hg) emissions in the United States. One of the promising techniques for Hg removal from flue gas is activated carbon injection (ACI). The aim of this project was to liberate Hg bound to fly ash and activated carbon after ACI and provide high-quality coal combustion ...
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Supercritical water oxidation presented as alternative to incineration – An update
Environmentally benign waste disposal is becoming a more and more acute problem. A process now being commercialised, supercritical water oxidation is demonstrating extremely efficient organic waste destruction (99.99%) plus excellent environmental characteristics (none of the emissions associated with incineration). The process is especially suitable for the treatment of wastewater and sludges ...
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Cenospheres - Case Study
The problem: A cenosphere is a lightweight, inert, hollow sphere made largely of silica and alumina and filled with air or inert gas, typically produced as a byproduct of coal combustion at thermal power plants. On average 0.5% of the fly ash generated in a coal fired power station boiler are Cenospheres. When fly ash is wet discharged in to ash ponds/lagoons cenospheres float on the water ...
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Environment impact from ash disposal of the thermal power plant 'Kosova A'
Mining activities impact on environment is as old as these activities themselves. It is estimated that thermal power plants in Kosova produce about 1.6 million tons of ash per year, and all ash produced is disposed as waste material. The main problems for environment pollution are the ash dumps containing more than 40 million tons of ash cover about 150 ha of land. The ash dumps sites of the ...
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Natural radionuclides in waste water discharged from coal-fired power plants in Serbia
Investigation of the natural radioactivity levels in water around power plants, as well as in plants, coal, ash, slag and soil, and to assess the associated radiation hazard is becoming an emerging and interesting topic. This paper is focused on the results of the radioactivity analysis in waste water samples from five coal-fired power plants in Serbia (Nikola Tesla A, Nikola Tesla B, ...
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Document shows power plant guidelines rule significantly altered in White House review
An Environmental Protection Agency rule proposed in June to regulate discharges of toxic pollutants from power plants was significantly altered during White House review to include additional regulatory options for industry, an EPA document shows. The newly added options are generally seen as less stringent than the initial EPA proposals because they establish lesser numeric effluent limitations ...
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Fly Ash & the Lightweight Aggregate Market
In 2015, the global fly ash market was estimated to be valued at 40 billion USD. A recent industry analysis by Research Nester anticipates the market will reach an estimated 70 billion USD by the end of 2023 – a 7.1% CAGR owing to increasing urbanization and a boost in construction projects. Along with bottom ash (BA) and flue gas desulfurization gypsum (FGD gypsum, or synthetic gypsum), ...
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