Abstract
This study investigated the adaptation and diffusion of biogas technology in Dar es Salaam, driven by the increasing need for sustainable energy solutions. The study’s is rooted in addressing urban energy challenges and providing an eco-friendly waste management alternative. Various factors, including socioeconomic variables, technical efficiencies, and community-level acceptability, were examined to assess the technology’s adaptability and diffusion. Data collection methods and techniques included lab analysis using American public health association (APHA) standard methods, interviews, questionnaire administration the data analysis was undertaken using statistical package for the social sciences (SPSS) with a sample size comprising 100 household heads from Mburahati, 50 biogas technology adopters, 50 non-adopters, and 16 key informants. The findings disclosed that 40% of respondents learned about biogas technology through their friends and neighbours who had already adopted it, while 6% discovered it through exhibitions. About 54% of the respondents who were aware of the biogas technology received the information from sources including seminars, biogas researchers, extension officers, and technicians who had adopted the technology. The most influential factor affecting the adoption of biogas technology was the community’s income level, accounting for 50.4% of all factors. Inadequate funds were a significant challenge for 75% of respondents, and 64.05% hadn’t attended training sessions or seminars related to biogas technology, despite their importance, this is because most them did not hear about these trainings, and seminars although they were aware with the technology. The study also found that neutral pH levels enhanced anaerobic digestion efficiency, leading to efficient biogas production. Efficiency rates varied among case studies, with the International School of Tanganyika achieving rates between 93.52% and 99.35%, Mburahati DEWATs ranging from 82.15% to 98.24%, and CCBRT ranging from 81.98% to 99.61%. The higher the efficiency of biogas technology, the high higher the adoptability of the systems by the majority and vice versa. In conclusion, the study revealed a low level of biogas technology adoption and diffusion in Dar es Salaam. To enhance this process, the government should review and establish a supportive environment for the advancement of this technology.
Recommended Citation
Tarimo, D. L. (2025). Assessment of Adaptation and Diffusion of Biogas Technology A Case Study of Dar es salaam City, Tanzania. Tanzania Journal of Engineering and Technology, 43(4), 119-132. https://doi.org/https://doi.org/10.52339/tjet.v43i4.948
Publisher Name
University of Dar es Salaam