Vermicomposting of lavender waste: a biological laboratory investigation
Fecha
2022Autor
Versión
Acceso abierto / Sarbide irekia
Tipo
Artículo / Artikulua
Versión
Versión publicada / Argitaratu den bertsioa
Impacto
|
10.3390/agronomy12122957
Resumen
In the present work, lavender waste, a residue of the essential oil extract industry, was
used to feed Eisenia andrei with mature horse manure at ratios of 0:100, 25:75, 50:50, 75:25 and
100:0 on dry weight basis. Vermicomposting was carried out for 70 days in laboratory conditions.
Biological parameters such as population build-up, total biomass, mortality and cocoon production
were observed ...
[++]
In the present work, lavender waste, a residue of the essential oil extract industry, was
used to feed Eisenia andrei with mature horse manure at ratios of 0:100, 25:75, 50:50, 75:25 and
100:0 on dry weight basis. Vermicomposting was carried out for 70 days in laboratory conditions.
Biological parameters such as population build-up, total biomass, mortality and cocoon production
were observed and measured. Increasing concentrations of waste affected positively the growth and
reproduction of worms in a significant way. The 100% lavender waste combination showed the best
cocoon production and even tripled their biomass in the first week. A seed germination test was also
made, where no evidence of toxicity was found. The germination index range was, in general terms,
above 100. The results indicated that the earthworm E. andrei was able to transform lavender waste
into compost and thus play a major role in industrial waste management and apply circular economy. [--]
Materias
Essential oil extraction waste,
Agro-industrial residues,
Waste valorization,
Eisenia andrei,
Sustainable agriculture
Editor
MDPI
Publicado en
Agronomy 2022, 12, 2957
Departamento
Universidad Pública de Navarra. Departamento de Ingeniería /
Nafarroako Unibertsitate Publikoa. Ingeniaritza Saila /
Universidad Pública de Navarra/Nafarroako Unibertsitate Publikoa. Institute of Smart Cities - ISC
Versión del editor
Entidades Financiadoras
This research was funded by the Government of Navarre and European Regional Development
Fund (ERDF) grant number VERMICOMPOSTAJE 4.0 (0011-1365-2019-000110) research project.
The APC was funded by Euskoiker Foundation.