Biodegradation of Natural Rubber Wastewater in the Submerged Membrane Bioreactor by Pichia Guilliermondii and Yarrowia Lipolytica

Abstracts: Despite the many services that natural rubber provides to humanity, its production generates significant quantities of polluted effluents which have a negative impact on health and environment. In order reduce this pollution allow water be reused after treatment, synthetic effluent treatment trial was carried out in submerged membrane bioreactor presence two strains yeast (Yarrowia lipolytica, Pichia guilliermondii) biodegradation parameters (COD, NH4+, NO2-, NO3-) were followed. The Mohlman Index (MI), particle size distribution, Lowry method for proteins Dubois sugars made it possible characterize sludge generated during biodegradation. It appears from these experiments reduction rate COD 98% nitrification denitrification 90%. There is decreasing linear relationship between MI SS (Suspended Solids) with an R2 95%. distribution tri-modal maximum having average 1000 µm. formed resists filtration polysaccharide/protein ratio 0.45.