Evaluating environmental benefits of low-cost biogas digesters in small-scale farms in Colombia: A life cycle assessment
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Summary
This summary is machine-generated.Implementing low-cost digesters on Colombian farms significantly cuts environmental harm and costs. These systems reduce waste, replace liquefied petroleum gas (LPG) with biogas, and substitute synthetic fertilizers with digestate, saving 80% on expenses.
Area Of Science
- Agricultural Science
- Environmental Science
- Life Cycle Assessment (LCA)
Background
- Small-scale farms in Colombia traditionally manage manure in pits, leading to environmental impacts.
- Liquefied petroleum gas (LPG) is commonly used for cooking, and synthetic fertilizers for crop production.
Purpose Of The Study
- To evaluate the environmental benefits of adopting low-cost digesters on Colombian small-scale farms.
- To compare scenarios with and without digester implementation using Life Cycle Assessment (LCA).
Main Methods
- Life Cycle Assessment (LCA) methodology was employed.
- Four scenarios were analyzed: two baseline (manure pit, LPG) and two intervention (digesters, biogas, digestate).
- Environmental impacts related to manure handling, fuel, and fertilizer use were assessed.
Main Results
- Digester implementation reduced potential environmental impacts by up to 80%.
- Significant reductions were observed in the use of LPG and synthetic fertilizers.
- Biogas replaced LPG for cooking, and digestate replaced synthetic fertilizers.
Conclusions
- Low-cost digesters offer substantial environmental benefits for small-scale Colombian farms.
- The technology provides economic advantages, reducing cooking fuel and fertilizer costs by 80%.
- Widespread adoption can mitigate environmental burdens associated with traditional farming practices.