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Nauka Przyroda Technologie

Science Nature Technologies

Scientific journal presents original papers and articles relevant to all aspects of agricultural sciences.

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2015 volume 9 issue 2, #19 DOI: 10.17306/J.NPT.2015.2.19
Agnieszka Pilarska, Agnieszka Wolna-Maruwka, Tomasz Piechota, Krzysztof Pilarski, Magdalena Szymańska, Dorota Wolicka
Preliminary research of digestate pulp from biogas plant and its composts as potential organic fertilizers
Summary.

Biogas production based on organic materials involves generating large amounts of the so-called digested pulp. Its usage poses many problems stemming from the low dry matter content (about 8-12%) and variable chemical content dependent on the type of substrate used for the fermentation process, among other factors. A beneficial solution for digestate management is to recognise its potential for enhancing the physical, chemical and biological soil properties or parameters. However, comprehensive research should precede the launching of the product as a fertilizer. Quality standards for digested pulp are strictly determined in the Regulation of the Minister of Agriculture and Rural Development (Rozporządzenie..., 2008). The pulp quality can be improved by its composting (through mineralization or hygienization, among others). This promising solution has been realised in this work. The variables determined in particular trials were pH value, the contents of macronutrients, nitrogen, carbon, heavy metals, and the activity of dehydrogenase, phosphatase and urease. The highest activity of dehydrogenase in the pulp with sludge was obtained. This material was characterised by high content of nitrogen and organic carbon, compared with the other tested samples. Beneficial results were also registered, in the case of application of pulp and compost with manure – without organic additives.

Key words: manure, digestate pulp, compost, enzyme activity, chemical properties of digestate and composts
PDFFull text available in Polish in Adobe Acrobat format:
http://www.npt.up-poznan.net/tom9/zeszyt2/art_19.pdf

DOI: 10.17306/J.NPT.2015.2.19

For citation:

MLA Pilarska, Agnieszka, et al. "Wstępne badania pulpy pofermentacyjnej z biogazowni oraz jej kompostów jako potencjalnych nawozów organicznych." Nauka Przyr. Technol. 9.2 (2015): #19. DOI: 10.17306/J.NPT.2015.2.19
APA Agnieszka Pilarska1, Agnieszka Wolna-Maruwka2, Tomasz Piechota3, Krzysztof Pilarski4, Magdalena Szymańska5, Dorota Wolicka6 (2015). Wstępne badania pulpy pofermentacyjnej z biogazowni oraz jej kompostów jako potencjalnych nawozów organicznych. Nauka Przyr. Technol. 9 (2), #19 DOI: 10.17306/J.NPT.2015.2.19
ISO 690 PILARSKA, Agnieszka, et al. Wstępne badania pulpy pofermentacyjnej z biogazowni oraz jej kompostów jako potencjalnych nawozów organicznych. Nauka Przyr. Technol., 2015, 9.2: #19. DOI: 10.17306/J.NPT.2015.2.19
Corresponding address:
Agnieszka Pilarska
Instytut Technologii Żywności Pochodzenia Roślinnego
Uniwersytet Przyrodniczy w Poznaniu
ul. Wojska Polskiego 31/33
60-624 Poznań
Poland
e-mail: pilarska@up. poznan.pl
Accepted for print: 29.12.2014