Logotipo ImpactU
Autor

Post-Treatment and Agricultural Reuse of Digestate from Low-Tech Digesters: A Comparative Life Cycle Assessment

Acceso Abierto

Abstract:

The objective of this study was to analyse the environmental impacts of the post-treatment and agricultural reuse of digestate from a low-tech digester implemented in a small-scale farm in Colombia using the Life Cycle Assessment methodology. The scenarios considered were: 1) digestate post-treatment with a sand filter and its reuse in agriculture; 2) digestate post-treatment with a vermifilter and the production of compost, and 3) untreated digestate directly applied on the agricultural land (current scenario). Moreover, an economic analysis was also addressed. Results showed that the vermifilter was the most environmentally friendly scenario. It considerably reduced (by up to 9 times) the environmental impacts compared to the other scenarios. From an economic point of view, the implementation of the vermifilter generated an increase in farmers’ income (up to 70 $ year-1) since it avoids buying synthetic fertilizer. Finally, the implementation of a vermifilter for the post-treatment and agricultural reuse of digestate from low-tech digesters showed to have both environmental and economic benefits.

Tópico:

Digestive system and related health

Citaciones:

Citations: 0
0

Citaciones por año:

No hay datos de citaciones disponibles

Altmétricas:

Paperbuzz Score: 0
0

Información de la Fuente:

FuenteNo disponible
Cuartil año de publicaciónNo disponible
Volumen894
IssueNo disponible
Páginas164992 - N/A
pISSNNo disponible
ISSNNo disponible
Perfil OpenAlexNo disponible

Enlaces e Identificadores:

Artículo de revista