What is it about?
The mineral carbon sequestration capacity of basic oxygen furnace (BOF) slag offers great potential to absorb carbon dioxide (CO2) from landfill emissions. The BOF slag is highly alkaline and rich in calcium (Ca) containing minerals that can react with the CO2 to form stable carbonates. This property of BOF slag makes it appealing for use in CO2 sequestration from landfill gas.
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Why is it important?
Landfill gas (LFG) emissions from municipal solid waste (MSW) landfills are one of the major sources of anthropogenic greenhouse gas (GHG) emissions. LFG generated during the anaerobic decomposition of the waste comprises of approximately 50% (v/v) methane (CH4) and 50% (v/v) CO2, which are the major greenhouse gases that cause global warming. Controlling these gas emissions is critical.
Perspectives
Very practical approach towards controlling landfill gas emissions.
Krishna Reddy
University of Illinois at Chicago
Read the Original
This page is a summary of: Effect of basic oxygen furnace slag particle size on sequestration of carbon dioxide from landfill gas, Waste Management & Research The Journal for a Sustainable Circular Economy, February 2019, SAGE Publications,
DOI: 10.1177/0734242x18823948.
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