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Återvinning av fosfor och energi ur avloppsslam genom termiskbehandling i fluidiserad bädd: Utvärdering och optimering av prestandaför slutprodukten
Umeå University, Faculty of Science and Technology, Department of Applied Physics and Electronics, Energy Technology and Thermal Process Chemistry.
Umeå University, Faculty of Science and Technology, Department of Applied Physics and Electronics, Energy Technology and Thermal Process Chemistry.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Energy Science.
(Luleå University of Technology, Department of Engineering Sciences and Mathematics, Energy Science)
2012 (Swedish)Report (Other academic)Alternative title
Thermal treatment of sewage sludge in fluidized beds for phosphorus andenergy recovery : Evaluation and performance optimization for the final product (English)
Abstract [sv]

Förbränning av pelleterat rötslam i fluidbädd medger produktion av askpellets med högt innehåll av växttillgängligt fosfor. För att höja halten av K och Ca är sameldning med biobränsle lämpligt, exempelvis åkerbränslen. Bäddtemperaturen bör vara så hög som möjligt utan att påverka driftsäkerhet för att öka flyktigheten hos miljöpåverkande ämnen. Uppehållstiden för slampelletsen i bädden bör vara så låg som möjlig för att undvika att pelletsen nöts sönder.

Abstract [en]

Combustion of pelletized sewage sludge in a fluidized bed allows the production of ash pellets with high P availability for plants. Co-combustion with biofuels, e.g. agricultural residues, is a suitable approach to raise the levels of K and Ca. The bed temperature used should be as high as possible without putting plant availability at risk in order to volatilize potentially harmful elements. Residence time for the ash pellet in the bed should be made as short as possible to improve ash recovery.

Place, publisher, year, edition, pages
2012. , 50 p.
Series
SVU Rapport, 2012-10
Keyword [en]
Recovery, Phosphorus, Sewage sludge, Thermal treatment
Keyword [sv]
Återvinning, Fosfor, Avloppsslam, Termisk behandling
National Category
Natural Sciences Chemical Engineering
Identifiers
URN: urn:nbn:se:umu:diva-60960OAI: oai:DiVA.org:umu-60960DiVA: diva2:564970
Available from: 2012-11-05 Created: 2012-11-05 Last updated: 2013-06-13Bibliographically approved

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Skoglund, NilsBoström, Dan
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CiteExportLink to record
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