Short communication: Combined photocatalytic and fungal processes for the treatment of nitrocellulose industry wastewater

The objective of this work was to characterize the delignification effluent originating from the delignification industry and evaluate the combination of the fungus and photocatalytic process (TiO2/UV system) for the treatment of this effluent. The delignification effluent has proven harmful to the...

Full description

Saved in:
Bibliographic Details
Published in:Journal of hazardous materials 2009-01, Vol.161 (2-3), p.1569-1573
Main Authors: Barreto-Rodrigues, Marcio, Souza, Joao V B, Silva, Erica S, Silva, Flavio T, Paiva, Teresa C B
Format: Article
Language:English
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The objective of this work was to characterize the delignification effluent originating from the delignification industry and evaluate the combination of the fungus and photocatalytic process (TiO2/UV system) for the treatment of this effluent. The delignification effluent has proven harmful to the environment because it presents high color (3516 CU), total phenol (876 mg/L) and TOC (1599 mg/L) and is also highly toxic even in a low concentration. The results of photocatalysis were 11%, 25% and 13% higher for reductions in color, total phenol and TOC, respectively. The combined treatments presented benefits when compared to the non-combined treatments. Fungus and photocatalysis in combination proved to be the best treatment, reducing the color, total phenol, toxicity (inhibition of Escherichia coli growth) and TOC by 94.2%, 92.6%, 4.9% and 62%, respectively.
ISSN:0304-3894
DOI:10.1016/j.jhazmat.2008.05.012