ssessing the application of advanced oxidation processes , and their ombination with biological treatment , to effluents from pulp and aper industry

2.4 g O3 L−1 achieved about a 60% COD removal treating a kraft pulp mill effluent. 10 g TiO2 L−1 produced a COD removal <30% treating pulp and paper effluents. The composition of pulp and paper mill’s effluents influenced its AOPs treatment. AOPs as pre-biological treatment did not result in significant better results. Very good COD and colour removals (>90%) were achieved combining MBR + ozonation. g r a p h i c a l a b s t r a c t