ASSESSMENT OF ADAPTATION AND DIFFUSION OF BIOGAS TECHNOLOGY IN DAR ES SALAAM

Abstract

This study examined the adaptation and diffusion of biogas technology in Dar es Salaam, utilizing various data collection methods, including surveys, laboratory analysis, field observations, and interviews. 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 community 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. A majority (54%) acquired information from other sources like 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. 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%. These variations in anaerobic digestion efficiency were likely due to the low solid content in the selected substrates or effluents. 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.