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Vol 9, No 3 (2006)
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Degradation of tribromophenol by wood-rot fungi and hamilton system | Monrroy | Electronic Journal of Biotechnology
doi: 10.2225/vol9-issue3-fulltext-26
Electronic Journal of Biotechnology, Vol 9, No 3 (2006)

Degradation of tribromophenol by wood-rot fungi and hamilton system

Mariel Monrroy, Juanita Freer, Jaime Baeza, Jaime Rodríguez



Abstract

Biological, chemical and combined treatments were used to degrade TBP. The biological treatment consisted in the use of Laetiporus sulphureus, Gloeophyllum trabeum and Ganoderma australe, which respectively achieved 48%, 74% and 80% degradation, and 40%, 70% and 77% of organic bromine removal (AOX) on TBP water solutions (60 mg L-1) after 15 days of bio treatment. The biological treatment with G. australe on TBP-contaminated sawdust (10 mg kg-1) led to 23% degradation. The chemical treatment consisted in the Hamilton system (Fenton reaction assisted by 1,2-dihydroxybenzene); observing with this treatment, 95% degradation, 50% mineralization (TOC), and 48% reduction of chemical oxygen demand (COD). The combined treatment of both (chemical-biological) treatments produced degradations of 100%, and reduction of toxicity of 34% and 30%, with L. sulphureus and G. australe, respectively.




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ISSN:  0717-3458

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