Dynamic of Components Leachate from Experimental Fertilizers in Leaching Test
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Opole University, Oleska Str 22, 45-052 Opole, Poland
Institute of Ceramics and Building Materials, Oswiecimska Str. 21, 45-641 Opole, Poland
Institute of Environmental Engineering of the Polish Academy of Sciences, M. Skłodowskiej-Curie Str. 34, 41–819 Zabrze, Poland
Department of Biotechnology and Molecular Biology, Opole University, Kominka Str. 6a, 45-035 Opole, Poland
Publication date: 2018-03-01
Corresponding author
Tomasz Ciesielczuk   

Opole University, Oleska Str 22, 45-052 Opole, Poland
J. Ecol. Eng. 2018; 19(2):194-203
Organic matter contained in the waste of food industry or occurring in the households, in the absence of contamination with other kind of waste, may be used to create a “fertiliser”, which could be even reused in the organic production of arable crops. Particular attention is drawn to the fertilisers which may be applied in the case of amateur cultivation of pot plants and in the allotment gardens. The paper presents the results of research regarding the dynamics of the release of nutrients from tablets created with the help of encapsulation of the mixture manufactured from solvent extraction waste of coffee (SCG), modified by the ash obtained from low temperature burning of biomass. In this study, the mixture was determined as a fertilizer. Collagen, polyvinyl acetate, polyvinyl alcohol, shellac as well as sodium water glass have been applied as testing membranes in order to slow down the elution of the components from a fertilizer into solution. The durability tests have been carried out according to PN-EN-13266 standard over 118 days at the temperature of 25°C. The obtained results indicate significant differentiation with regard to the leaching of nutrients and organic matter from the tablets depending on the applied membrane. Strong inhibition concerning leaching of the components through membranes and from shellac and polyvinyl acetate has been observed. The remaining membranes did not inhibit the leaching of nutrients in the long-lasting manner; however, even they may be applied in the agricultural practice.
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