Biochars Originating from Different Biomass and Pyrolysis Process Reveal to Have Different Microbial Characterization: Implications for Practice

Wioletta Żukiewicz-Sobczak, Agnieszka Latawiec, Paweł Sobczak, Bernardo Strassburg, Dorota Plewik and Małgorzata Tokarska-Rodak
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Wioletta Żukiewicz-Sobczak: Pope John Paul II State School of Higher Education in Biala Podlaska, Sidorska 95/97, 21-500 Biala Podlaska, Poland
Agnieszka Latawiec: International Institute for Sustainability, Estrada Dona Castorina 124, Horto, Rio de Janeiro 22460-320, Brazil
Paweł Sobczak: Department of Food Engineering and Machines, University of Life Sciences in Lublin, Akademicka 13, 20-950 Lublin, Poland
Bernardo Strassburg: International Institute for Sustainability, Estrada Dona Castorina 124, Horto, Rio de Janeiro 22460-320, Brazil
Dorota Plewik: Pope John Paul II State School of Higher Education in Biala Podlaska, Sidorska 95/97, 21-500 Biala Podlaska, Poland
Małgorzata Tokarska-Rodak: Pope John Paul II State School of Higher Education in Biala Podlaska, Sidorska 95/97, 21-500 Biala Podlaska, Poland

Sustainability, 2020, vol. 12, issue 4, 1-13

Abstract: Sustainable technologies are increasingly promoted in various production areas. Protection of natural resources, as well as rational waste management, may lead to better optimization of technologies. Biochar, a product of pyrolysis of organic residues has found wide applications in waste management, agriculture, energy and construction industry. In the present study biochar samples produced in Poland and in Brazil were analysed for microbial content using three substrates: Plate Count Agar, Malt Agar, and Potato Agar. Both qualitative and quantitative measurements were done. Microscopic analysis of the biochar structure was also performed. We found that microbial cultures in both biochars represented a wide range of biodiversity of microorganisms genera and species. We demonstrate that the biochar samples differ depending on the botanical origin as well as on the production technology. Structure of the tested samples also varied depending on the botanical origin. Sample 1-PL (pine) was characterised by a compact and regular structure, while sample 2-PL (oak) showed porous and irregular structure. Sample from Brazil (1-BR) showed a more delicate structure than Polish biochars. Obtained properties may suggest a range of implications for practice.

Keywords: biochar; microbiological analysis; structure; implications for practice (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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