Abstract
A critical analysis is made of the Brazilian National Alcohol Program which is based mainly on sugarcane as feedstock. In remote and isolated areas, the use of cassava is shown to be a viable alternative for regional socio-economic development. A qualitative comparison among the distilleries of various capacities demonstrates the of minidistilleries (∼20 000 litres day −1) in regions like the north-east of Brazil. Some of the technological innovations introduced in a cassava-based pilot plant distillery installed by the Nucleus of Non-Conventional Energy Sources of the Federal University of Ceará are discussed. Based on this experience, an integrated model system of biomass utilisation incorporating cassava, water hyacinth and animal husbandry is proposed. Analysis shows that this is economically viable, producing not only liquid fuel, but also food, feed and fertiliser by making adequate use of by-products and distillery waste.
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