Assessment of energy parameters of biomass and biochars, leachability of heavy metals and phytotoxicity of their ashes
PBN-AR
Instytucja
Wydział Rolniczo-Ekonomiczny (Uniwersytet Rolniczy im. Hugona Kołłątaja w Krakowie)
Informacje podstawowe
Główny język publikacji
en
Czasopismo
Journal of Material Cycles and Waste Management
ISSN
1438-4957
EISSN
1611-8227
Wydawca
Springer
DOI
URL
Rok publikacji
2019
Numer zeszytu
4
Strony od-do
786-800
Numer tomu
21
Identyfikator DOI
Liczba arkuszy
0.7
Autorzy
Pozostali autorzy
+ 2
Słowa kluczowe
en
Biochar
Biomass
Fixed carbon
Heat of combustion
Calorific value
Heavy metals
Phytotoxicity
Open access
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Oryginał autora
Licencja otwartego dostępu
Creative Commons — Uznanie autorstwa
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Po publikacji
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Streszczenia
Język
en
Treść
The aim of this study was to determine selected energy parameters, leachability of heavy metals and phytotoxicity of biomass ash for different types of plant biomass (wheat straw, miscanthus straw, bark and sawdust) and poultry manure, as well as biochars produced from them. Based on data from proximate and ultimate analysis of the investigated materials, fuel value index (FVI) was calculated to determine their suitability for energy production. The ashes were analyzed for both chemical composition and leaching behavior. The phytotoxicity test of aqueous ash extracts was performed for Lepidium sativum L. It was found that the calorific value of biochars was higher on average by 36% than the value determined for feedstocks used in the pyrolysis process. The pyrolysis of organic materials resulted in the reduction of the volatile matter content. The gross calorific value was determined in biochars formed from miscanthus straw and sawdust which were 26.6 and 23.4 MJ kg−1, respectively. Leachability of heavy metals of biomass ash was highly diverse and depended on the analyzed element and the material type. The phytotoxicity analysis showed that, in general, each of the ash extracts tested had a positive effect on the growth of Lepidium sativum L. compared to the control. The use of ash, fertilizer, or sorbents can be an interesting alternative for materials with high ash content. In all these cases, biochars seem to be very attractive materials that can be used not only in energy production. Given the high carbon content of biochar obtained in the pyrolysis process, it has a high-energy potential and can be used as a biofuel.
Inne
System-identifier
URfbcdc1924a9c4c769cddbc6a2a44bcda
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