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The '''daily cover''' on an operational [[landfill]] site is the layer of [[soil compaction|compressed]] [[soil]] or earth which is laid on top of a day's deposition of [[waste]]. Benefits of using daily cover include:<ref>{{Cite web|date=2009-01-01|title=Going Undercover|url=https://www.waste360.com/Landfill_Management/landfill-daily-cover-material-200901|access-date=2021-10-19|website=Waste360|language=en}}</ref> |
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* Reduction of odor and air emissions |
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* Control of [[Disease vector|disease vectors]] (birds, insects, and rodents) |
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* Improved surface stability for landfill vehicles |
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* Control of litter |
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* Reduction of [[leachate]] generation (cover reduces infiltration of rainwater and runoff into the waste mass) |
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* Fire prevention (cover reduces contact of combustible materials with air and ignition sources, and can act as a temporary [[firebreak]]) |
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Work at the [[Fresno Sanitary Landfill]] was instrumental in establishing the need and utility of daily cover.{{cn|date=September 2018}} |
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Federal regulations in the United States require a minimum of six (6) inches of daily cover to be used at the end of each day.<ref>{{Cite web|title=Plan for cover|url=https://www.wastetodaymagazine.com/article/plan-for-cover/|access-date=2021-10-19|website=Waste Today|language=en}}</ref> |
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While soils are the traditional materials employed in daily cover, alternative daily cover (ADC) options such as "green waste",<ref>{{cite web | url=http://www.calrecycle.ca.gov/lgcentral/basics/adcbasic.htm | title=Alternative Daily Cover (ADC) | accessdate=September 14, 2012 | archive-date=June 5, 2012 | archive-url=https://web.archive.org/web/20120605044817/http://www.calrecycle.ca.gov/lgcentral/basics/adcbasic.htm | url-status=dead }}</ref> mixtures of paper sludge, [[Tire-derived aggregate|tire derived aggregate]] (TDA) and [[geosynthetic membrane]]s<ref>{{cite web | url=https://www.westernliner.com/blog/what-is-an-alternative-daily-cover/ | title=What is an Alternative Daily Cover? | accessdate=March 30, 2018}}</ref> have displayed mechanical characteristics desirable for daily cover. When compared to traditional soil layers, the paper sludge paste was 2–3 times lighter, at least two orders of magnitude less permeable, and comparable in shear strength.<ref>Ng, Kelvin T, Irene M Lo, and Irene M Lo. 2007. Mechanical Behaviors of a Synthetic Paste of Tire Chips and Paper Sludge in MSW Landfill Daily Cover Applications. Canadian Geotechnical Journal. 44, no. 8: 928-941.</ref> |
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==See also== |
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*[[Biogas]] |
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*[[Landfill]] |
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*[[Final cover]] |
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==References== |
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<references/> |
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[[Category:Landfill]] |
[[Category:Landfill]] |
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{{waste-stub}} |
{{waste-stub}} |
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Latest revision as of 13:50, 26 February 2024
The daily cover on an operational landfill site is the layer of compressed soil or earth which is laid on top of a day's deposition of waste. Benefits of using daily cover include:[1]
- Reduction of odor and air emissions
- Control of disease vectors (birds, insects, and rodents)
- Improved surface stability for landfill vehicles
- Control of litter
- Reduction of leachate generation (cover reduces infiltration of rainwater and runoff into the waste mass)
- Fire prevention (cover reduces contact of combustible materials with air and ignition sources, and can act as a temporary firebreak)
Work at the Fresno Sanitary Landfill was instrumental in establishing the need and utility of daily cover.[citation needed]
Federal regulations in the United States require a minimum of six (6) inches of daily cover to be used at the end of each day.[2]
While soils are the traditional materials employed in daily cover, alternative daily cover (ADC) options such as "green waste",[3] mixtures of paper sludge, tire derived aggregate (TDA) and geosynthetic membranes[4] have displayed mechanical characteristics desirable for daily cover. When compared to traditional soil layers, the paper sludge paste was 2–3 times lighter, at least two orders of magnitude less permeable, and comparable in shear strength.[5]
See also
[edit]References
[edit]- ^ "Going Undercover". Waste360. 2009-01-01. Retrieved 2021-10-19.
- ^ "Plan for cover". Waste Today. Retrieved 2021-10-19.
- ^ "Alternative Daily Cover (ADC)". Archived from the original on June 5, 2012. Retrieved September 14, 2012.
- ^ "What is an Alternative Daily Cover?". Retrieved March 30, 2018.
- ^ Ng, Kelvin T, Irene M Lo, and Irene M Lo. 2007. Mechanical Behaviors of a Synthetic Paste of Tire Chips and Paper Sludge in MSW Landfill Daily Cover Applications. Canadian Geotechnical Journal. 44, no. 8: 928-941.
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