Ash - Revision history

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2dev>Jmdonev at 03:38, 6 October 2018

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	[[Category:Done ~~2015~~-09-06]]		[[Category:Done 2018-12-10]]
			[[Category: Rudi grade Ashley edit]]
	[[File:Wood_ash.jpg\|400px\|framed\|right\|Figure 1. Wood ash.<ref>Wikimedia Commons. (September 12, 2015). ''Wood Ash'' [Online]. Available: https://upload.wikimedia.org/wikipedia/commons/0/09/Wood_ash.jpg</ref>]]		[[File:Wood_ash.jpg\|400px\|framed\|right\|Figure 1. Wood ash.<ref>Wikimedia Commons. (September 12, 2015). ''Wood Ash'' [Online]. Available: https://upload.wikimedia.org/wikipedia/commons/0/09/Wood_ash.jpg</ref>]]
	<onlyinclude>'''Ash''' is the [[solid]], somewhat powdery substance that is left over after ~~some~~ [[fuel]] undergoes [[combustion]].</onlyinclude> Broadly speaking, [[coal ash]] and wood ash are the two most talked about types of ash, although ash is created during any process of incomplete combustion. ~~Because~~ of ~~this~~, the chemical composition and even appearance of ash can vary drastically.		<onlyinclude>'''Ash''' is the [[solid]], somewhat powdery substance that is left over after any [[fuel]] undergoes [[combustion]].</onlyinclude> Broadly speaking, [[coal ash]] and wood ash are the two most talked about types of ash, although ash is created during any process of incomplete combustion. Due to the variety of potential fuels, the chemical composition and even appearance of ash can vary drastically.

	~~Ash is formed in cases where a substance undergoes incomplete~~ combustion~~. This simply~~ means that there is not enough [[oxygen]] present when the material is burned to completely ~~burn~~ the fuel.<ref>ScienceLearn. (September 12, 2015). What is smoke? [Online]. Available: http://sciencelearn.org.nz/Contexts/Fire/Science-Ideas-and-Concepts/What-is-smoke</ref> Instead of only [[carbon dioxide]] and [[water vapour]] being created, incomplete combustion can result in the production of [[soot]], [[smoke]], and ash. Depending on what is burned, ash can ~~have~~ different chemical components ~~within it~~. However, the main chemical component of ash is [[carbon]], with varying amounts of other [[element]]s including [[calcium]], [[magnesium]], [[potassium]], and [[phosphorus]] - all of which were not burned when the fuel was used.		Incomplete combustion means that there is not enough [[oxygen]] present when the material is burned to completely consume the fuel.<ref>ScienceLearn. (September 12, 2015). What is smoke? [Online]. Available: http://sciencelearn.org.nz/Contexts/Fire/Science-Ideas-and-Concepts/What-is-smoke</ref> Instead of only [[carbon dioxide]] and [[water vapour]] being created, incomplete combustion can result in the production of [[soot]], [[smoke]], and ash. Depending on what is burned, ash can consist of different chemical components. However, the main chemical component of ash is [[carbon]], with varying amounts of other [[element]]s including [[calcium]], [[magnesium]], [[potassium]], and [[phosphorus]] - all of which were not burned when the fuel was used.

	==Coal Ash==		==Coal Ash==
	:: [[coal ash\|''main article'']]		:: [[coal ash\|''main article'']]
	Coal ash is a collection of different sized particulates that are formed as a result of [[coal]] combustion in a coal-fired [[power plant]]. This ash can be broken up into several different categories of material, including [[fly ash]], [[bottom ash]], [[boiler slag]], and [[flue gas desulfurization material]].<ref name="RE3"/> The production of coal ash is concerning, simply because large amounts ~~of coal ash~~ are produced as a result of coal use. In addition to concerns about the sheer [[volume]] of coal ash, coal ash itself is harmful if released into the [[environment]] as it contains [[lead]], [[arsenic]], [[mercury]], [[cadmium]], and [[uranium]].<ref>Clean Water Action. (September 12, 2015). Managing Coal Ash [Online]. Available: http://cleanwateraction.org/page/managing-coal-ash</ref> ~~Because~~ of ~~this, means of disposal must be carefully considered~~.		Coal ash is a collection of different sized particulates that are formed as a result of [[coal]] combustion in a coal-fired [[power plant]]. This ash can be broken up into several different categories of material, including [[fly ash]], [[bottom ash]], [[boiler slag]], and [[flue gas desulfurization material]].<ref name="RE3"/> The production of coal ash is concerning, simply because large amounts it are produced as a result of coal use. In addition to concerns about the sheer [[volume]] of coal ash, coal ash itself is harmful if released into the [[environment]] because it contains [[lead]], [[arsenic]], [[mercury]], [[cadmium]], and [[uranium]].<ref>Clean Water Action. (September 12, 2015). Managing Coal Ash [Online]. Available: http://cleanwateraction.org/page/managing-coal-ash</ref> These [[pollutant]]s within ash makes it ecologically important to appropriately dispose of ash.

	==Wood Ash==		==Wood Ash==
	Wood ash is ~~simply~~ a collection of different sized particulates that are formed as a result of the combustion of [[wood]]. This ash is typically powdery and can be fairly useful ~~as a result of~~ its high content of a variety of ~~different minerals~~. ~~For example, wood~~ ash ~~can be used to enrich compost if a small sprinkle is added in. In addition to this, ashes~~ can be used to repel slugs and snails in gardens, de-skunk pets, melt ice, clean glass, and even shine [[silver]].<ref>Mark Feirer. (September 12, 2015). ''10 Uses for Wood Ashes'' [Online]. Available: http://www.thisoldhouse.com/toh/article/0,,1581470,00.html</ref>		Wood ash is a collection of different sized particulates that are formed as a result of the combustion of [[wood]]. This ash is typically powdery and can be fairly useful due to its high content of a variety of [[mineral]]s. Wood ash can be used to repel slugs and snails in gardens, de-skunk pets, melt ice, clean glass, enrich compost, and even shine [[silver]].<ref>Mark Feirer. (September 12, 2015). ''10 Uses for Wood Ashes'' [Online]. Available: http://www.thisoldhouse.com/toh/article/0,,1581470,00.html</ref>

	==Health Impacts==		==Health Impacts==
	Traditional wood ash that is produced in small volumes in fireplaces in the home is generally not harmful unless inhaled. However, homes that rely on wood-burning fires for [[heat]], [[light]], or for cooking can have higher levels of indoor [[air pollution]] which is harmful for human health. ~~In fact, the~~ lack of [[access to non-solid fuel]]s for use inside the home is a significant issue in some parts of the world. For more information on this topic in particular, click [[access to non-solid fuel\|here]]. Ash can become airborne in smoke when wood is burned, and this particle pollution can damage lung tissue and lead to serious respiratory problems.<ref>US EPA. (September 12, 2015). ''Indoor Air: Residential Wood Burning'' [Online]. Available: http://www.epa.gov/airquality/community/details/i-woodstoves_addl_info.html</ref>		Traditional wood ash that is produced in small volumes in fireplaces in the home is generally not harmful unless inhaled. However, homes that rely on wood-burning fires for [[heat]], [[light]], or for cooking can have higher levels of indoor [[air pollution]] which is harmful for human health. The lack of [[access to non-solid fuel]]s for use inside the home is a significant issue in some parts of the world. For more information on this topic in particular, click [[access to non-solid fuel\|here]]. Ash can become airborne in smoke when wood is burned, and this particle pollution can damage lung tissue and lead to serious respiratory problems.<ref>US EPA. (September 12, 2015). ''Indoor Air: Residential Wood Burning'' [Online]. Available: http://www.epa.gov/airquality/community/details/i-woodstoves_addl_info.html</ref>

	Coal ash is more harmful to human health as it is sometimes released into the air and contains a wider range of potentially ~~harmful chemicals~~. Fly ash in particular is a [[pollutant]], and it contains [[acid\|acidic]], toxic, and [[radioactive]] matter.<ref>J.Fay, D. Golomb. ''Energy and the Environment'', 1st ed. New York, U.S.A.: Oxford, 2002.</ref> This ash can contain lead, arsenic, mercury, cadmium, and uranium.<ref name="RE3">Ed Dodge. (September 12, 2015). ''Can Coal Fly Ash Waste Be Put to Good Use?'' [Online]. Available: http://breakingenergy.com/2014/02/18/can-coal-fly-ash-waste-be-put-to-good-use/</ref> The EPA found that significant exposure to fly ash and other components of coal ash increases a persons risk of developing cancer and other respiratory diseases. Inhalation is not as much of an issue with bottom ash as it is much heavier than fly ash, but ingestion of bottom ash can have nervous system impacts, cognitive defects, developmental delays, and behavioral problems along with increasing a persons chance of developing lung disease, kidney disease, and gastrointestinal illness.<ref> PSR. (September 12, 2015). Coal Ash: Hazardous to Human Health [Online]. Available: http://www.psr.org/assets/pdfs/coal-ash-hazardous-to-human-health.pdf</ref>		Coal ash is more harmful to human health as it is sometimes released into the air and contains a wider range of potentially dangerous [[chemical]]s. Fly ash in particular is a [[pollutant]], and it contains [[acid\|acidic]], toxic, and [[radioactive]] matter.<ref>J.Fay, D. Golomb. ''Energy and the Environment'', 1st ed. New York, U.S.A.: Oxford, 2002.</ref> This ash can contain lead, arsenic, mercury, cadmium, and uranium.<ref name="RE3">Ed Dodge. (September 12, 2015). ''Can Coal Fly Ash Waste Be Put to Good Use?'' [Online]. Available: http://breakingenergy.com/2014/02/18/can-coal-fly-ash-waste-be-put-to-good-use/</ref> The EPA found that significant exposure to fly ash and other components of coal ash increases a persons risk of developing cancer and other respiratory diseases. Inhalation is not as much of an issue with bottom ash as it is much heavier than fly ash, but ingestion of bottom ash can have nervous system impacts, cause cognitive defects, developmental delays, and behavioral problems along with increasing a persons chance of developing lung disease, kidney disease, and gastrointestinal illness.<ref> PSR. (September 12, 2015). Coal Ash: Hazardous to Human Health [Online]. Available: http://www.psr.org/assets/pdfs/coal-ash-hazardous-to-human-health.pdf</ref>

			==For Further Reading==
			*[[Air pollution]]
			*[[Combustion]]
			*[[Fuel]]
			*[[Pollutant]]
			*Or explore a [[Special:Random\|random page]]

	==References==		==References==
	{{reflist}}		{{reflist}}[[Category:Uploaded]]

J.williams: 1 revision imported

2015-09-18T16:52:25Z

1 revision imported

← Older revision	Revision as of 16:52, 18 September 2015
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Jmdonev at 03:35, 14 September 2015

2015-09-14T03:35:44Z

New page

[[Category:Done 2015-09-06]]
[[File:Wood_ash.jpg|400px|framed|right|Figure 1. Wood ash.<ref>Wikimedia Commons. (September 12, 2015). ''Wood Ash'' [Online]. Available: https://upload.wikimedia.org/wikipedia/commons/0/09/Wood_ash.jpg</ref>]]
<onlyinclude>'''Ash''' is the [[solid]], somewhat powdery substance that is left over after some [[fuel]] undergoes [[combustion]].</onlyinclude> Broadly speaking, [[coal ash]] and wood ash are the two most talked about types of ash, although ash is created during any process of incomplete combustion. Because of this, the chemical composition and even appearance of ash can vary drastically.

Ash is formed in cases where a substance undergoes incomplete combustion. This simply means that there is not enough [[oxygen]] present when the material is burned to completely burn the fuel.<ref>ScienceLearn. (September 12, 2015). What is smoke? [Online]. Available: http://sciencelearn.org.nz/Contexts/Fire/Science-Ideas-and-Concepts/What-is-smoke</ref> Instead of only [[carbon dioxide]] and [[water vapour]] being created, incomplete combustion can result in the production of [[soot]], [[smoke]], and ash. Depending on what is burned, ash can have different chemical components within it. However, the main chemical component of ash is [[carbon]], with varying amounts of other [[element]]s including [[calcium]], [[magnesium]], [[potassium]], and [[phosphorus]] - all of which were not burned when the fuel was used.

==Coal Ash==
:: [[coal ash|''main article'']]
Coal ash is a collection of different sized particulates that are formed as a result of [[coal]] combustion in a coal-fired [[power plant]]. This ash can be broken up into several different categories of material, including [[fly ash]], [[bottom ash]], [[boiler slag]], and [[flue gas desulfurization material]].<ref name="RE3"/> The production of coal ash is concerning, simply because large amounts of coal ash are produced as a result of coal use. In addition to concerns about the sheer [[volume]] of coal ash, coal ash itself is harmful if released into the [[environment]] as it contains [[lead]], [[arsenic]], [[mercury]], [[cadmium]], and [[uranium]].<ref>Clean Water Action. (September 12, 2015). Managing Coal Ash [Online]. Available: http://cleanwateraction.org/page/managing-coal-ash</ref> Because of this, means of disposal must be carefully considered.

==Wood Ash==
Wood ash is simply a collection of different sized particulates that are formed as a result of the combustion of [[wood]]. This ash is typically powdery and can be fairly useful as a result of its high content of a variety of different minerals. For example, wood ash can be used to enrich compost if a small sprinkle is added in. In addition to this, ashes can be used to repel slugs and snails in gardens, de-skunk pets, melt ice, clean glass, and even shine [[silver]].<ref>Mark Feirer. (September 12, 2015). ''10 Uses for Wood Ashes'' [Online]. Available: http://www.thisoldhouse.com/toh/article/0,,1581470,00.html</ref>

==Health Impacts==
Traditional wood ash that is produced in small volumes in fireplaces in the home is generally not harmful unless inhaled. However, homes that rely on wood-burning fires for [[heat]], [[light]], or for cooking can have higher levels of indoor [[air pollution]] which is harmful for human health. In fact, the lack of [[access to non-solid fuel]]s for use inside the home is a significant issue in some parts of the world. For more information on this topic in particular, click [[access to non-solid fuel|here]]. Ash can become airborne in smoke when wood is burned, and this particle pollution can damage lung tissue and lead to serious respiratory problems.<ref>US EPA. (September 12, 2015). ''Indoor Air: Residential Wood Burning'' [Online]. Available: http://www.epa.gov/airquality/community/details/i-woodstoves_addl_info.html</ref>

Coal ash is more harmful to human health as it is sometimes released into the air and contains a wider range of potentially harmful chemicals. Fly ash in particular is a [[pollutant]], and it contains [[acid|acidic]], toxic, and [[radioactive]] matter.<ref>J.Fay, D. Golomb. ''Energy and the Environment'', 1st ed. New York, U.S.A.: Oxford, 2002.</ref> This ash can contain lead, arsenic, mercury, cadmium, and uranium.<ref name="RE3">Ed Dodge. (September 12, 2015). ''Can Coal Fly Ash Waste Be Put to Good Use?'' [Online]. Available: http://breakingenergy.com/2014/02/18/can-coal-fly-ash-waste-be-put-to-good-use/</ref> The EPA found that significant exposure to fly ash and other components of coal ash increases a persons risk of developing cancer and other respiratory diseases. Inhalation is not as much of an issue with bottom ash as it is much heavier than fly ash, but ingestion of bottom ash can have nervous system impacts, cognitive defects, developmental delays, and behavioral problems along with increasing a persons chance of developing lung disease, kidney disease, and gastrointestinal illness.<ref> PSR. (September 12, 2015). Coal Ash: Hazardous to Human Health [Online]. Available: http://www.psr.org/assets/pdfs/coal-ash-hazardous-to-human-health.pdf</ref>

==References==
{{reflist}}