Search
Agricultural biogas plants as a hub to foster circular economy and bioenergy: An assessment using substance and energy flow analysis

March 1, 2023 | Resources, Conservation and Recyling | Source

Introduction: Currently, Swiss AD plants produce around 1,300 TJ of biogas annually, which could potentially be increased tenfold by 2050. This expansion could significantly reduce the need for mineral fertilizers and fossil fuels, lowering CO2 emissions by 38 kt annually. The study by researchers from Switzerland focuses on optimizing the use of biomass in agricultural anaerobic digestion (AD) plants in Switzerland, aiming to enhance the circular economy and mitigate climate change. 

Key findings: The study highlights that while 47% of the energy in input biomass is converted into biogas, the rest remains in solid and liquid residues. There is a need for better quality data to improve the accuracy of these measurements. The research indicates that agricultural digestates are valuable, providing essential nutrients and improving soil quality. However, their economic value is currently underutilized, partly due to market limitations and the preference for separate fertilizers. The study suggests that Switzerland needs to fully leverage its renewable energy potential, including biogas, to meet climate goals. Policymakers should enhance support for biogas plants and consider technological advancements to increase efficiency. Expanding this approach could also be beneficial if applied on a broader scale and integrated with other biomass uses. Overall, the study underscores the importance of advancing biogas technology to support sustainable agriculture and environmental management.

 

Graphical Abstract

Viewed Articles
Agricultural biogas plants as a hub to foster circular economy and bioenergy: An assessment using substance and energy flow analysis
March 1, 2023 | Resources, Conservation and Recyling | Source | Introduction: Currently, Swiss AD plants produce around 1,300 TJ of biogas annually, which could potentially be increased tenfold by 205
Read More
A meta-analysis on the mitigation measures of methane emissions in Chinese rice paddy
March, 2024 | Resources, Conservation and Recycling | Source |  Introduction: China being the largest rice producer, representing 21.75% of global methane (CH₄) emissions from rice cultivation, thus m
Optimized agricultural management reduces global cropland nitrogen losses to air and water
November 12, 2024 | Nature Food | Source |  Introduction: While nitrogen (N) inputs are essential for crop productivity, N losses from croplands contribute to major environmental issues, including cli
Future carbon emissions from global mangrove forest loss
February 28, 2021 | Global Change Biology | Source |  Introduction: Mangroves significantly contribute to global climate mitigation by storing substantial carbon, yet their continuous loss poses major
Mitigation of greenhouse gas emissions and reduced irrigation water use in rice production through water-saving irrigation scheduling, reduced tillage and fertiliser application strategies
October 15, 2020 | Science of The Total Environment | Source |  Introduction: Rice production in Asia accounts for 75% of the global supply but is highly vulnerable to climate change, with rising temp
Optimizing agricultural management in China for soil greenhouse gas emissions and yield balance: A regional heterogeneity perspective
May 1, 2024 | Journal of Cleaner Production | Source |  Introduction: Region-specific strategies are critical for China to balance crop production and environmental sustainability. This study, led by
TOP