STUDY OF THE PERFORMANCE AND KINETICS OF AEROBIC BIOLOGICAL TREATMENTOF A CTMP EFFLUENT

Aerobic biodegradation of a CTMP effluent was studied in the laborator y under a very wide range of conditions to assess the treatment perfor mance and establish the kinetics parameters. Very high removals of BOD 5 and resin and fatty acids from the effluent together with good sludg e settling can be achieved using short treatment time. Biodegradation of the effluent follows first order reaction. The sludge yield and oxy gen requirement coefficients found for the fixed conditions studied we re 0.54 mg MLSS and 0.36 mg O2 per mg of BOD5 removed, respectively. T he temperature coefficient found for estimating the overall oxygen tra nsfer coefficient was 1.028.