| Title |
A thermo-economic analysis of a circular economy model for biomass in South America producing biofertilizers and biogas from municipal solid waste |
| ID_Doc |
2544 |
| Authors |
Montoya, JPG; Alvarez, YC; Magalha, RFD; Lermen, FH |
| Title |
A thermo-economic analysis of a circular economy model for biomass in South America producing biofertilizers and biogas from municipal solid waste |
| Year |
2024 |
| Published |
|
| DOI |
10.1016/j.renene.2024.120254 |
| Abstract |
The linear economy model has caused many impacts associated with increased urban population and municipal solid waste generation worldwide. Through anaerobic digestion, the circular bioeconomy of biomass (methanogenic) provides a fuel (biogas) and an environmentally sustainable biofertilizer. This theoretical-descriptive research proposes a circular economic model based on the design of biorefineries using recycled biomass in urban areas. The model considers a minimum of 1.8 million people to generate approximately 650 tons/day for its application. The biorefinery configuration of the model consists of 12 biodigesters of 5400 m3 unit capacity and a spark ignition engine of 2 MW. The model is validated by employing a case study in the main urban cities of South America. Brazil with about 161,000 m3/day of biogas and 3100 tons/day of biofertilizer, and Paraguay, with 10,000 m3/day of biogas and 500 tons/day of biofertilizer, are the ones with the highest and lowest energy potential, respectively. The internal rate of return on investment in the case study is around 69%. The proposed circular economy model reduces greenhouse gas emissions and environmental impacts of municipal solid waste; Also, the environmental impact was estimated using different equivalence indicators between green electricity energy and carbon footprint avoided. |
| Author Keywords |
Circular economy; Biorefineries; Biofertilizer; Biogas; Bioenergy |
| Index Keywords |
Index Keywords |
| Document Type |
Other |
| Open Access |
Open Access |
| Source |
Science Citation Index Expanded (SCI-EXPANDED) |
| EID |
WOS:001221062400001 |
| WoS Category |
Green & Sustainable Science & Technology; Energy & Fuels |
| Research Area |
Science & Technology - Other Topics; Energy & Fuels |
| PDF |
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