Assessing the Potential of Cassava Waste as a Feedstock for Biogas Production: Case Study Ilaro Nigeria

B.Sc. John Oluwatosin Ilo, BA

Master's thesis

Abstract:

This research investigates the biogas yield of cassava waste and examines socio-economic characteristics, current waste management practices, awareness of biogas potential, and stakeholders' perceptions. The study was carried out in Ilaro, Ogun State, Nigeria, involving surveys, waste management assessments, and biogas production experiments. Results reveal a diverse range of waste management practices, with burning being prevalent despite environmental concerns. However, there is growing awareness of sustainable alternatives, such as selling waste and using it as animal feed. The study also highlights challenges that include inadequate infrastructure and knowledge gaps. Stakeholders express strong support for biogas adoption, but cite financial barriers and lack of technical know-how as challenges. In the biogas yield experiment, exponential growth and microbial adaptation were observed, followed by a decline possibly due to substrate depletion. The results indicate that moderate inoculum levels yield optimal biogas production, while excessive inoculum can be detrimental. The decrease in total and volatile solids over time suggests organic matter breakdown, supporting biogas production. In general, the study underscores the importance of promoting sustainable waste management practices and overcoming barriers to the adoption of biogas for environmental and economic benefits.

Keywords

Cassava waste, Waste management, Total solids, Adoption, Volatile solid, Nigeria, Methane, Inoculum, Biogas

Language used: English

Date on which the thesis was submitted / produced: 28. 4. 2024

Thesis defence

• Date of defence: 3. 6. 2024
• Supervisor: doc. Ing. Hynek Roubík, Ph.D.
• Reader: Iryna Ablieieva, externi

Czech University of Life Sciences Prague

Faculty of Tropical AgriSciences

Master programme:
Tropical Crop Management and Ecology