Options of use of waste biomass from herbal production for energy purposes

Andrzej Żabiński, Urszula Sadowska, Grzegorz Wcisło


The objective of the research was to determine and compare the value of the heat of combustion of waste biomass in the form of above-ground parts of the selected species of herbs. The research included leaved stalks of milk thistle, non-leaved stalks of thyme and garden sage and inflorescence axes of lavender and fennel. The heat of combustion of waste biomass was determined with the use of a calorimeter according to the applicable standard PN-EN ISO 9831:2005. Based on the obtained results it was stated, inter alia, that, from among the investigated species the lowest average value of the heat of combustion of 13.28 MJ∙kg-1 was in case of biomass obtained from milk thistle. The heat of combustion of biomass of the remaining species was similar and it was at the average of 20.47 MJ∙kg-1. Weight of ash after combustion was the highest in case of milk thistle and it was 0.23 g whereas in case of the remaining species it did not exceed 0.03 g.


herb plant; waste biomass; heat of combustion

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ISSN: 2083-1587 (print)
ISSN: 2449-5999 (online)

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