Fly ash from poultry litter gasification - Can it be utilised in agriculture systems as a fertiliser?

Daya Shankar Pandey, Marzena Kwapinska, James J. Leahy, Witold Kwapinski

Research output: Contribution to journalConference articlepeer-review

10 Citations (Scopus)


Fly ash from a poultry litter gasification process and the potential of application of the fly ash as a fertiliser in line with the poultry litter protocol is investigated. The fines collected in the cyclone are mainly formed by ash which comprises between 70-83 wt.% of the fines on a dry basis, and to a lesser extent of carbon (elutriated char). The effect of the gasification operating conditions on the concentration of ash forming elements (inorganic compounds) in the fly ash, are discussed. In addition, the enrichment factor which defines the volatility, has been used and fly ash elements were categorised as Class I (non-volatile), Class II (semi-volatile with the possible occurrence of condensation) and Class III (highly volatile elements). Inorganic elements in fly ashes from poultry litter gasification experiments are categorised as Class I: Ca, Co, Cu, Fe, Hg, K, Mg, Mn, Na, Ni, P, Class II: Cd, Cr, Mo and Class III: Pb and Se. It has been found that the fly ash from the poultry litter gasification exceeds the upper acceptable limit set by Poultry Litter Protocol to be used as a fertiliser in agriculture systems.

Original languageEnglish
Pages (from-to)38-46
Number of pages9
JournalEnergy Procedia
Publication statusPublished - 2019
Event2nd International Conference on Sustainable Energy and Resource Use in Food Chains, ICSEF 2018 - Paphos, Cyprus
Duration: 17 Oct 201819 Oct 2018


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