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Type of publication: conference paper
Type of publication (PDB): Tezės kituose recenzuojamuose leidiniuose / Theses in other peer-reviewed publications (T1e)
Field of Science: Aplinkos inžinerija / Environmental engineering (T004)
Author(s): Mieldažys, Ramūnas;Jotautienė, Eglė;Jasinskas, Algirdas
Title: The physical-mechanical properties evaluation of experimental granulated poultry manure and biofuel ash fertilize
Is part of: AgroEco 2020 : 3rd International scientific virtual conference : Agroecosystem sustainability : links between carbon sequestration in soils, food security and climate change Vytautas, Magnus University Agriculture Academy, Lithuania, 2–3 December, 2020 : programme and abstracts. [Akademija] : Vytautas Magnus University.Agriculture Academy, 2020
Extent: p. 56
Date: 2020
Keywords: Poultry manure;Biomass ash;Waste;Granules;Physical–mechanical properti
ISBN: 9786094674662
Abstract: Experimental research investigations of poultry manure and biofuel ash waste preparation and conversion into granular fertilizers were carried out in laboratory basis of Institute of Agricultural Engineering and Safety. Poultry manure used in this study was obtained from industrial poultry farm. Sample manure was collected from different places in the poultry house. Biomass ash to mix with poultry manure was collected from the industrial burner unit of a power plant of an energy company where biomass was used as fuel. The biomass burned was comprised of forest residues and wastes from the wood processing industry, in the form of sawdust and chips. The aim of this work is to carry out a feasibility study for the combination of agricultural waste biomass ash and poultry manure recycled into granular fertilizer by considering the technological means of raw waste material preparation, a theoretical pressure analysis, and a physical–mechanical property determination of the obtained product. There were investigated 3 selected variants (1A+1M, 1A+2M and 1A+4M) of poultry manure granules that were produced by granulation method in the laboratory conditions. After the granules cooled, their biometric parameters were evaluated, including their dimensions, volume and density. During the experiment, the cylindrical chamber was filled with samples and pressed. There were obtained dependence of poultry manure and biomass ashes density on compression. According to the obtained curves the changing mass density and pressure and the density change coefficient and energy demand have been calculated. It was found that increasing the ash concentration from 25 to 50% in samples increases the energy demand for raw material pressure up to 6.8 times. Increases in ash content, from 25 to 50% in the raw material granules, led to strength increases to 55%
Affiliation(s): Vytauto Didžiojo universitetas
Žemės ūkio inžinerijos fakultetas
Appears in Collections:Universiteto mokslo publikacijos / University Research Publications

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