Phosphorus-Rich Ash from Poultry Manure Combustion in a Fluidized Bed Reactor

The aim of this study was to examine the physico-chemical and phase characteristics of ash obtained in the process of the combustion of Polish poultry manure in a laboratory reactor with a bubbling fluidized bed. Three experiments, differing in the grain size and morphology of the raw material, the...

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Main Authors: Zdzisław Adamczyk, Magdalena Cempa, Barbara Białecka
Format: Article
Language:English
Published: MDPI AG 2021-07-01
Series:Minerals
Subjects:
Online Access:https://www.mdpi.com/2075-163X/11/7/785
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author Zdzisław Adamczyk
Magdalena Cempa
Barbara Białecka
author_facet Zdzisław Adamczyk
Magdalena Cempa
Barbara Białecka
author_sort Zdzisław Adamczyk
collection DOAJ
description The aim of this study was to examine the physico-chemical and phase characteristics of ash obtained in the process of the combustion of Polish poultry manure in a laboratory reactor with a bubbling fluidized bed. Three experiments, differing in the grain size and morphology of the raw material, the method of its dosing and the type of fluidized bed, were carried out. The contents of the main chemical components and trace elements in the obtained ash samples were determined using WDXRF, and the phase composition was examined through the XRD method. The morphology and the chemical composition of grains in a given micro-area using the SEM/EDS method were also investigated. The highest concentration of phosphorus (from 28.07% wt. to 29.71% wt. as P<sub>2</sub>O<sub>5</sub> equivalent), the highest proportion of amorphous substance (from 56.7% wt. to 59.0% wt.) and the lowest content of unburned organic substance (LOI from 6.42% to 9.16%) (i.e., the best process efficiency), was obtained for the experiment in which the starting bed was quartz sand and poultry manure was fed to the reactor in the form of pellets. It has been calculated that in this case, the amorphous phase contains more than half of the phosphorus. The method of carrying out the combustion process has a significant impact on the phase composition and, consequently, on the availability of phosphorus.
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spelling doaj.art-07fd0cefa7ef4c64a0b4ceaa3bf19af72023-11-22T04:28:35ZengMDPI AGMinerals2075-163X2021-07-0111778510.3390/min11070785Phosphorus-Rich Ash from Poultry Manure Combustion in a Fluidized Bed ReactorZdzisław Adamczyk0Magdalena Cempa1Barbara Białecka2Faculty of Mining, Safety Engineering and Industrial Automation, Department of Applied Geology, Silesian University of Technology, 44-100 Gliwice, PolandDepartment of Environmental Monitoring, Central Mining Institute, 40-166 Katowice, PolandDepartment of Environmental Monitoring, Central Mining Institute, 40-166 Katowice, PolandThe aim of this study was to examine the physico-chemical and phase characteristics of ash obtained in the process of the combustion of Polish poultry manure in a laboratory reactor with a bubbling fluidized bed. Three experiments, differing in the grain size and morphology of the raw material, the method of its dosing and the type of fluidized bed, were carried out. The contents of the main chemical components and trace elements in the obtained ash samples were determined using WDXRF, and the phase composition was examined through the XRD method. The morphology and the chemical composition of grains in a given micro-area using the SEM/EDS method were also investigated. The highest concentration of phosphorus (from 28.07% wt. to 29.71% wt. as P<sub>2</sub>O<sub>5</sub> equivalent), the highest proportion of amorphous substance (from 56.7% wt. to 59.0% wt.) and the lowest content of unburned organic substance (LOI from 6.42% to 9.16%) (i.e., the best process efficiency), was obtained for the experiment in which the starting bed was quartz sand and poultry manure was fed to the reactor in the form of pellets. It has been calculated that in this case, the amorphous phase contains more than half of the phosphorus. The method of carrying out the combustion process has a significant impact on the phase composition and, consequently, on the availability of phosphorus.https://www.mdpi.com/2075-163X/11/7/785ashpoultry manurephosphorusfluidized bed reactor
spellingShingle Zdzisław Adamczyk
Magdalena Cempa
Barbara Białecka
Phosphorus-Rich Ash from Poultry Manure Combustion in a Fluidized Bed Reactor
Minerals
ash
poultry manure
phosphorus
fluidized bed reactor
title Phosphorus-Rich Ash from Poultry Manure Combustion in a Fluidized Bed Reactor
title_full Phosphorus-Rich Ash from Poultry Manure Combustion in a Fluidized Bed Reactor
title_fullStr Phosphorus-Rich Ash from Poultry Manure Combustion in a Fluidized Bed Reactor
title_full_unstemmed Phosphorus-Rich Ash from Poultry Manure Combustion in a Fluidized Bed Reactor
title_short Phosphorus-Rich Ash from Poultry Manure Combustion in a Fluidized Bed Reactor
title_sort phosphorus rich ash from poultry manure combustion in a fluidized bed reactor
topic ash
poultry manure
phosphorus
fluidized bed reactor
url https://www.mdpi.com/2075-163X/11/7/785
work_keys_str_mv AT zdzisławadamczyk phosphorusrichashfrompoultrymanurecombustioninafluidizedbedreactor
AT magdalenacempa phosphorusrichashfrompoultrymanurecombustioninafluidizedbedreactor
AT barbarabiałecka phosphorusrichashfrompoultrymanurecombustioninafluidizedbedreactor