Evaluating benefits of low-cost household digesters for rural andean communities
Cita com:
hdl:2117/26353
Tipus de documentArticle
Data publicació2012-01
Condicions d'accésAccés obert
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Reconeixement-NoComercial-SenseObraDerivada 3.0 Espanya
Abstract
Low-cost household digesters are a promising appropriate technology which can help reducing the pressure on the environment due to deforestation and greenhouse gases emissions. The biogas and biofertilizer produced can alleviate poverty, by improving health conditions, increasing crops productivity and saving working time and burden for women and children. The aim of this study is to evaluate low-cost digesters technical, environmental and socio-economic impacts in rural communities of the Peruvian Andes, where a pilot project was developed during the last 3 years. Although the benefits are restricted by the performance of anaerobic digestion at high altitude, the results show that the digesters improve household living conditions and economy, while reducing environmental impacts. Biogas production covers around 60% of fuel needs for cooking, leading to 50–60% decrease in firewood consumption (i.e. deforestation) and greenhouse gases emissions; the annual income is increased by 3–5.5% due to fertilizer savings and potato sales. These values could be improved by enhancing digesters performance and the sustainability of the technology.
CitacióGarfi, Marianna [et al.]. Evaluating benefits of low-cost household digesters for rural andean communities. "Renewable and sustainable energy reviews", Gener 2012, vol. 16, núm. 10, p. 575-581.
ISSN1364-0321
Versió de l'editorhttp://www.sciencedirect.com/science/article/pii/S1364032111004333
Col·leccions
- Departament d'Enginyeria mecànica - Articles de revista [596]
- EOLI - Enginyeria d'Organització i Logística Industrial - Articles de revista [126]
- GEMMA - Grup d'Enginyeria i Microbiologia del Medi Ambient - Articles de revista [202]
- Departament de Màquines i Motors Tèrmics - Articles de revista [472]
- Departament d'Enginyeria Hidràulica, Marítima i Ambiental (fins octubre 2015) - Articles de revista [96]
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