A new alternative process for Kraft E1 effluent treatment |
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| Authors: | Nelson Durán Elisa Esposito Lucia H Innocentini-Mei Vanderlei P Canhos |
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| Institution: | (1) Instituto de Quimica, Biological Chemistry Laboratory, Universidade Estadual de Campinas, C.P. 6154, CEP 13081 Campinas, S.P. Brazil;(2) Chemical Engineering School, Universidade Estadual de Campinas, Brazil;(3) Fundacao Tropical de Pesquisa e Tecnologia Andre Tosello, Campinas, S.P., Brazil |
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| Abstract: | Lentinus edodes (UEC-2019 strain) was selected after screening 51 ligninolytic strains of fungi for their ability to decolorize phenolic industrial effluent with high content of lignin peroxidases, Mn-peroxidases and beta-glucosidases. This strain removed 73 % of color in theEucalyptus Kraft E1 effluent in 5 days without any additional carbon sources. A 13% mycelial adsorption was found. Correlation between mass loss, COD, TOC and decolorization was observed. When an effluent pre-irradiated (10 min) in the presence of ZnO was treated withL. edodes, a marked enhancement of the decolorization at 48 h was obtained.L. edodes is an active fungus in this pre-treatment and biobleaching process. The combined photo-biological decolorization procedure appears to be an efficient decontamination method with great potential in industrial effluent treatment.Abbreviation COD
Chemical oxygen demand
- TOC
Total organic carbon |
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| Keywords: | photo-treatment Kraft effluent fungal treatment Lentinus edodes |
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