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UKAID Department for International Development (R4D) 2010

The Potential of Small-Scale Biogas Digesters to Alleviate Poverty and Improve Long Term Sustainability of Ecosystem Services in Sub-Saharan Africa

Biogas Digesters Poverty

UKAID Department for International Development (R4D)

Titre : The Potential of Small-Scale Biogas Digesters to Alleviate Poverty and Improve Long Term Sustainability of Ecosystem Services in Sub-Saharan Africa

Projet de recherche pour le Développement :

DFID Programme : Energy

Organismes de mise en œuvre University of Aberdeen

Durée : 01-10-2010 / 31-05-2011

Objectifs
The possible benefits and risks associated with implementation of biogas digesters require further analysis if their full potential to alleviate poverty in Sub-Saharan Africa is to be realised. A full study requires a new multidisciplinary approach, bringing together expertise in engineering, hydrology, biology, social science, economics and systems-modelling. Engineering expertise is needed to identify optimum methods for implementing biogas digesters in different rural communities, focusing on locally available materials and efficiency of the digesters produced. Biological and hydrological expertise is needed to investigate microbial composition of the product at different stages through the digestion, fate of micro-organisms, nutrients and organic material applied to soils, changes in erosion and potential improvements in crop yields with application of digested product to fields. Economics is needed to assess household willingness to pay for the new technology, economic costs and benefits of introducing biogas, and impact upon rural livelihoods. Social science is needed to investigate the social acceptability of using biogas digesters in different rural communities. Systems-modelling is needed to determine the possible returns per household from fuel and use of the digested product as a fertiliser, and to integrate biological research into an estimate of the potential fate of soil C and N following application of digested product. This provides information about the material inputs and outputs from the digester and fertilised fields, which will allow an economic analysis of potential costs and benefits of using biogas digesters.
The work in Phase 1 will review potential sources of information and develop an analysis of potential costs and benefits of biogas digesters using information from the literature. Reviews of different aspects influencing successful implementation of biogas digesters in Sub-Saharan Africa will be undertaken by each of the partners.

Total Cost to DFID : £47,993

Présentation : UKAID

Page publiée le 24 septembre 2016, mise à jour le 8 novembre 2017