Effect of incineration temperature on phosphorus availability in bio-ash from manure
| Autor: | Ole Wernberg, Sven G. Sommer, Eivind Morten Skou, A.M. Thygesen |
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| Jazyk: | angličtina |
| Rok vydání: | 2011 |
| Předmět: |
Waste management
Phosphorus Temperature chemistry.chemical_element Fraction (chemistry) General Medicine Incineration engineering.material Manure Phosphates chemistry Slurry engineering Environmental Chemistry Environmental science Animals Dry matter Fertilizer Waste Management and Disposal Limited resources Water Science and Technology |
| Zdroj: | Thygesen, A M, Wernberg, O, Skou, E M & Sommer, S G 2011, ' Effect of incineration temperature on phosphorus availability in bio-ash from manure ', Environmental Technology, vol. 32, no. 6, pp. 633-638 . https://doi.org/10.1080/09593330.2010.509355 |
| DOI: | 10.1080/09593330.2010.509355 |
| Popis: | In the near future phosphorus (P) will be a limited resource in high demand. This will increase the incentives for recycling P in animal manure. In this study the dry-matter-rich fraction from slurry separation was incinerated and the P availability of the ash fraction examined. The aim was to adjust incineration temperature to support a high plant-availability of P in ash. The plant-availability of P was approximately halved when the incineration temperature was increased from 400 to 700 degrees C. This decrease in plant-availability was probably due to the formation of hydroxyapatite. Incineration temperatures should therefore be kept below 700 degrees C to ensure a high fertilizer efficiency of P in ash. This may conflict with the energy production, which is optimal at temperatures above 800 degrees C. An alternative to incineration may therefore be thermal gasification of the dry-matter-rich fraction, which can be carried out efficiently at lower temperatures. |
| Databáze: | OpenAIRE |
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