Application de lit fluidise anaerobie au traitement des effluents a forte charge organique

Abstract

This paper presents the evaluation of an anaerobic fluidized bed reactor for the treatment of effluent of a tapioca plant. The volume of the reactor was about 40 liters; actived carbon was used as support of bacteria. The influent had 6,4 kg m -3 COD and contained 4,4 kg m -3 suspended solids (SS). The hydraulic retention time varied from 5 to 29 hours. The values of efficiency varied from 57.9 to 88.3 % COD for an average yield of biogaz of 2.2 to 6.5, i.e. in the range of 0.355 to 0.54 m 3 biogaz kg -1 COD.