Home About Browse Search
Svenska


Seasonal variability of resources: The unexplored adversary of biogas use in rural Ethiopia

Wardle, Jennifer M. and Fischer, Anke and Tesfaye, Yitna and Smith, Jo (2021). Seasonal variability of resources: The unexplored adversary of biogas use in rural Ethiopia. Current Research in Environmental Sustainability. 3 , 100072
[Research article]

[img] PDF
3MB

Abstract

Biogas digester programmes have been rolled out across many countries in sub-Saharan Africa over the past decade with varying levels of success. In Ethiopia, reported success rates have been low, despite high levels of interaction between non-governmental organisations and various levels of government, plus the establishment of practical eligibility criteria. In Halaba, Ethiopia, we investigated physical and social factors affecting feedstock and water availability using a face-to-face questionnaire-based survey (n = 112) in four kebeles (local administration areas). We found that practices of fuel use and water collection were markedly different between seasons. Fuel use was almost entirely dependent on season, with wood being burned in the wet season and crop residues and cow dung being used instead in the dry season. A matched pair t-test found a significant difference between seasons in terms of water collection times (p = 7.4 × 10−16), with households spending more time and money obtaining clean drinking water in the dry season. Results indicate that seasonal differences in resource availability may reduce the proportion of households that meet the physical characteristics for maintaining a biogas digester by approximately 62% from wet season to dry season. Conversely, the greatest benefits of digester use would be gained in the dry season, when dung could be returned to the soil as a nutrient-rich bioslurry, instead of being combusted as a dirty and inefficient fuel. Seasonality is rarely considered in feasibility studies, so we recommend that these factors should be built into future analyses.

Authors/Creators:Wardle, Jennifer M. and Fischer, Anke and Tesfaye, Yitna and Smith, Jo
Title:Seasonal variability of resources: The unexplored adversary of biogas use in rural Ethiopia
Series Name/Journal:Current Research in Environmental Sustainability
Year of publishing :2021
Volume:3
Article number:100072
Number of Pages:8
Language:English
Publication Type:Research article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution-Noncommercial-No Derivative Works 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 5 Social Sciences > 509 Other Social Sciences > Social Sciences Interdisciplinary (Peace and Conflict Research and Studies on Sustainable Society)
Keywords:biogas, sustainability, season, Ethiopia, water, anaerobic digestion
URN:NBN:urn:nbn:se:slu:epsilon-p-114688
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-114688
ID Code:26301
Faculty:NJ - Fakulteten för naturresurser och jordbruksvetenskap
Department:(NL, NJ) > Dept. of Urban and Rural Development
(LTJ, LTV) > Dept. of Urban and Rural Development
Deposited By: SLUpub Connector
Deposited On:10 Dec 2021 14:25
Metadata Last Modified:10 Dec 2021 14:31

Repository Staff Only: item control page

Downloads

Downloads per year (since September 2012)

View more statistics

Downloads
Hits