Design of a Community-Based Anaerobic Digester for Sustainable Solid Waste Management in Ile-Oluji Ondo State Nigeria

Aim: A Community-Based Anaerobic Digester was designed in this study for sustainable solid waste management Ile-Oluji, Ondo state Nigeria.
 Methodology: Waste samples were collected from selected households a period of one month and the components percentage composition determined. Afterwards, physico-chemical characteristics substrate investigated result used to design community-based anaerobic digester.
 Results: The quantity, generated rate generation found be 0.2kg/capita/day while organic fraction total 55.7%. Physico-chemical characterization also investigated. pH 6.36 ± 0.18, alkalinity 692.81 78.62. moisture content range 71.20 4.63%. Total 38.91 5.25 volatile 26.44 2.83. carbon oxygen demand 834.33 12.61, phosphorus 4.20 0.33. Carbon on dry weight basis 60.41 2.38, nitrogen 4.79 1.03. C/N ration 21.61. biogas yield ranged 0 – 320 cm3 380cm3 per litre biodegradable-only biodegradable-cow dung respectively, forty days retention. cylindrical dome type digester chosen because its simplicity maintenance coupled with lower set up cost. optimum volume hydraulic chamber gas storage same as 850m3. Volume fermentation sludge layer calculated 2014m3 246m3 height diameter 7m 17m respectively.
 Conclusion: digestion biodegradable is viable alternative that government non-government organizations can key into improvement public health especially developing countries. standardization parameters may pose challenges varying climatic conditions complex socio-economic factors across different geographical contexts. Solutions have adapted localized achieve world.