Global ETD Search
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Showing 1 to 9 of 9 for “"mercury capture"”.
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Evaluating The Effectiveness Of Proprietary Additives In Improving Capture And Sequestration Of Oxidized Mercury In Scrubber Systems
<p>Mercury released during thermal processing (induration) of beneficiated taconite ore (referred to as green balls) can be captured by scrubber waters if it is in an oxidized form. Consequently, mercury emissions from Taconite facilities can be reduced by oxidation of the mercury released from the …
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Syntheses, Structures and Properties of Metal-Organic Frameworks
<p>Mercury is one of the most serious heavy metal pollution sources that threaten people’s health. For decades, people have developed many technologies and materials to capture mercury from flue gas of coal-fired plant. Currently, the most effective material for mercury absorption is powdered …
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Activated Carbon Injection for Mercury Control in Coal-Fired Boilers
<p>Mercury is a toxic compound causing numerous health problems in humans. One of the ways that mercury is released into the atmosphere is through the burning of coal. The Environmental Protection Agency estimates that the United States consumes i billion tons of coal per year and coal-fired …
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Evaluation of sorbents for the cleanup of coal-derived synthesis gas at elevated temperatures
… Combined Cycle (IGCC) with carbon dioxide capture is a promising technology to produce electricity from coal at a higher efficiency than with traditional subcritical pulverized coal (PC) power plants. As with any coal-based technology, however, it is of critical importance to develop …
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Oxy-Coal Combustion: Submicrometer Particle Formation, Mercury Speciation, And Their Capture
… including the control of particulate matter, mercury, and trace metals, and carbon oxide: CO2) emissions. The rising of CO2 level in the atmosphere due to burning of fossil fuels is one of the major factors contributing to the global climate change. Capturing CO2 from coal combustion exhaust …
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Evaluation Of A Low Corrosion Method To Increase Mercury Oxidation And Scrubber Capture
… one of the major contributors of the atmospheric mercury in the Lake Superior basin by the Lake Superior Lakewide Management Plan (LaMP). Mercury is a leading concern among air toxic metals due to its volatility, persistence and bioaccumulation as methylmercury in the environment, and its …
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Science to support toxics governance : tracking mercury and other pollutants from policy to impacts
Persistent and bioaccumulative toxins like mercury pose unique challenges for environmental governance. The complexity of their movement through coupled social, technological, and natural systems can make it difficult to trace their path from emissions to wider impacts, as emissions and impacts can …
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Fine Particle and Mercury Formation and Control during Coal Combustion
… including particulate matter (fly ash) and mercury (Hg), into the atmosphere. This dissertation investigated three aspects of pollutant formation and control from the coal combustion process: (1) organic aerosol formation during coal combustion, (2) mercury removal during coal combustion by …
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Flash calcination of limestone in a bench-scale sorbent activation process (SAP) unit
… hydrochloric acid (HCl) and elemental and ionic mercury (Hgo and Hg2+). A process option to remove these pollutants from the flue gas is by injection of sorbents downstream of a boiler and up-stream of a particulate control device. Activated carbon (AC) is a suitable sorbent to capture …