RT Journal Article
T1 Assessing the application of advanced oxidation processes, and their combination with biological treatment, to effluents from pulp and paper industry
A1 Merayo Cuevas, Noemí
A1 Hermosilla Redondo, María Daphne
A1 Blanco Jaen, Laura
A1 Cortijo, Luis
A1 Blanco Suárez, María Ángeles
AB The closure of water circuits within pulp and paper mills has resulted in a higher contamination load of the final mill effluent, which must consequently be further treated in many cases to meet the standards imposed by the legislation in force. Different treatment strategies based on advanced oxidation processes (ozonation and TiO2-photocatalysis), and their combination with biological treatment (MBR), are herein assessed for effluents of a recycled paper mill and a kraft pulp mill. Ozone treatment achieved the highest efficiency of all. The consumption of 2.4 g O3 L−1 resulted in about a 60% COD reduction treating the effluent from the kraft pulp mill at an initial pH = 7; although it only reached about a 35% COD removal for the effluent of the recycled paper mill. Otherwise, photocatalysis achieved about a 20–30% reduction of the COD for both type of effluents. In addition, the effluent from the recycled paper mill showed a higher biodegradability, so combinations of these AOPs with biological treatment were tested. As a result, photocatalysis did not report any significant COD reduction improvement whether being performed as pre- or post-treatment of the biological process; whereas the use of ozonation as post-biological treatment enhanced COD removal a further 10%, summing up a total 90% reduction of the COD for the combined treatment, as well as it also supposed an increase of the presence of volatile fatty acids, which might ultimately enable the resultant wastewater to be recirculated back to further biological treatment.
PB Elsevier
SN 0304-3894
YR 2013
FD 2013
LK https://hdl.handle.net/20.500.14352/44325
UL https://hdl.handle.net/20.500.14352/44325
LA eng
NO Merayo, Noemí, et al. «Assessing the Application of Advanced Oxidation Processes, and Their Combination with Biological Treatment, to Effluents from Pulp and Paper Industry». Journal of Hazardous Materials, vol. 262, noviembre de 2013, pp. 420-27. DOI.org (Crossref), https://doi.org/10.1016/j.jhazmat.2013.09.005.
NO European Commission
NO Comunidad de Madrid
NO Ministerio de Ciencia e Innovación (España)
DS Docta Complutense
RD 18 dic 2025