Fly Ash

{
  "id": "MLC-T-ENV-011401",
  "term": "Fly Ash",
  "field": "Environment",
  "definition": "1. Non-combustible residual particles expelled by flue gas.\n\n2. Particles of ash, such as particulate matter which may also have metals attached to them, that are carried up the stack of a combustion unit with gases during combustion.\n\n3. The finely divided residue resulting from the combustion of ground or powdered coal and which is transported from the firebox through the boiler by flue gases; known in the United Kingdom as pulverized fuel ash (pfa).\n\n4. Suspended particles, charred paper, dust, soot, and other partially oxidized matter carried in the products of combustion.\n\n5. Ash that is carried out of the furnace by the gas stream and collected by mechanical precipitators, electrostatic precipitators, and/or fabric filters. Economizer ash is included when it is collected with fly ash.\n\n6. Ash that is carried out of the furnace by a gas stream and collected by a capture device such as a mechanical precipitator, electrostatic precipitator, or fabric filter. Economizer ash is included in this definition when it is collected with fly ash. Ash is not included in this definition when it is collected in wet scrubber air pollution control systems whose primary purpose is particulate removal.",
  "subject": "Land, waste and cleanup",
  "references": [
    "RCRA Glossary of Terms; Terms of Environment",
    "RCRA Orientation Manual 2008 Glossary",
    "FEMA Federal Guidelines for Dam Safety: Glossary of Terms",
    "40 CFR 240.101 (CFR 2013)",
    "40 CFR 423.11 (CFR 2013)",
    "40 CFR 423.11 (CFR 2016)"
  ],
  "url": "https://mlchart.com/terminology/environment/fly-ash/"
}