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Ash Products and Their Economic Profitability
Linnéuniversitetet, Fakulteten för Hälso- och livsvetenskap (FHL), Institutionen för biologi och miljö (BOM).
Linnéuniversitetet, Fakulteten för Hälso- och livsvetenskap (FHL), Institutionen för biologi och miljö (BOM).ORCID-id: 0000-0001-8098-8562
Linnéuniversitetet, Fakulteten för Hälso- och livsvetenskap (FHL), Institutionen för biologi och miljö (BOM).
2013 (engelsk)Inngår i: The Open Waste Management Journal, ISSN 1876-4002, E-ISSN 1876-4002, Vol. 6, s. 1-5Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Sustainable whole-tree harvesting practice requires that nutrient removal from the forest is compensated. Woodashes contain all the nutrients, except for nitrogen, that are found in unburned fuel and can also increase soil pH, whichmakes ash recycling a natural way to stabilize the nutrient balance and counteract the acidification of forest soils thatoccurs due to intensive forest management. Several methods for processing ashes into spreadable products have beendeveloped. The aim of this paper is to compare these methods. The study mainly focused on an economic evaluation ofproduction, transportation and the spreading of self-hardened ash, ash pellets and ash granules. Self-hardened ash isgenerally considered to be the cheapest alternative to manufactured ash products, but these results imply that the most costeffective alternative is ash pellets. Around 27% of total costs could be earned from recycling the ash by producing pelletsand 8% if granules are produced instead of self-hardened ash. This partly depends on the higher density of the pellets andgranules and a significant reduction in the number of transportation operations. The reduction in transportation operationsand diesel consumption also has major environmental benefits. Furthermore, it is more efficient to produce granules andpellets than it is to produce self-hardened ash and it is also easier to produce a reliable product of an appropriate size,shape and texture for a market that has well defined requirements.

sted, utgiver, år, opplag, sider
Bentham Open , 2013. Vol. 6, s. 1-5
HSV kategori
Forskningsprogram
Naturvetenskap, Miljövetenskap
Identifikatorer
URN: urn:nbn:se:lnu:diva-25394DOI: 10.2174/1876400201306010001OAI: oai:DiVA.org:lnu-25394DiVA, id: diva2:617349
Tilgjengelig fra: 2013-04-22 Laget: 2013-04-22 Sist oppdatert: 2019-05-07bibliografisk kontrollert

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