Carbon balance of biogas production from maize in Latvian conditions
Laen...
Kuupäev
2021
Kättesaadav alates
Autorid
Bumbiere, K.
Gancone, A.
Pubule, J.
Blumberga, D.
Ajakirja pealkiri
Ajakirja ISSN
Köite pealkiri
Kirjastaja
Abstrakt
Production of biogas using bioresources of agricultural origin plays an important role
in Europe’s energy transition to sustainability. However, many substrates have been denounced
in the last years as a result of differences of opinion on its impact on the environment, while
finding new resources for renewable energy is a global issue. The aim of the study is to use a
carbon balance method to evaluate the real impact on the atmosphere by carrying out a carbon
balance to objectively quantify naturally or anthropogenically added or removed carbon dioxide
from the atmosphere. This study uses Latvian data to determine the environmental impact of
biogas production depending on the choice of substrate, in this case from specially grown maize
silage. GHG emissions from specially grown maize use and cultivation (including the use of
diesel fuel, crop residue and nitrogen fertilizer incorporation, photosynthesis), biogas production
leaks, as well as digestate emissions (including digestate emissions and also saved nitrogen
emissions by the use of digestate) are taken into account when compiling the carbon balance of
maize. The results showed that biogas production from specially grown maize can save
1.86 kgCO2eq emissions per 1 m3 of produced biogas.
Kirjeldus
Received: January 31st, 2021 ; Accepted: March 28th, 2021 ; Published: May 19th, 2021 ; Correspondence: jelena.pubule@rtu.lv
Märksõnad
agriculture, bioenergy, biofuels, multicriteria analysis, sustainability, articles