Figure 4 shows the municipal solid waste composition of Arusha city. The ratio of the composition is taken based on the mass of the waste. The composition of garden and wood waste is 30%, food waste 37%, Papers 11%, plastic 7%, glass 4%, metal and tin 1%, textiles 2% and ash 8%. The composition for combustible waste totalize to 87% while non-combustible waste composition is 13%. The combustible waste fraction has 89.7% biodegradable