CARBON FIXATION METHOD FOR REDUCING THE TURBIDITY OF SUGARCANE VINASSE AND THUS PROCESSED VINASSE

摘要

The invention relates to a method for processing vinasse, a byproduct of the distillation of fermented sugar cane must during alcohol production, with the aim of reducing the turbidity thereof for use as a culture medium for growing micro-organisms, including micro-algae and cyanobacteria. The method according to the invention is based on vinasse carbonation in a strong basic medium, with injection of CO₂. Furthermore, the process according to the invention promotes carbon fixation and reduces the biological oxygen demand (BOD) and chemical oxygen demand (COD) of the vinasse, thus further promoting the physico-chemical and microbiological stabilisation thereof.