Removal of metal and organic pollutants from wastewater by a sequential selective technique

• Type: Article in International Scientific Journal
• Date: 2016

Authors

Cobas, M (Author) Other; Anthony Steven Danko (Author) FEUP; Pazos, M (Author) Other; Sanroman, MA (Author) Other

Journal

Title: Bioresource Technology

Vol. 213

Pages: 2-10

ISSN: 0960-8524

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 0 Citations

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Other information

Authenticus ID: P-00K-M9F

DOI: 10.1016/j.biortech.2016.02.036

Abstract (EN): In this study the application of a sequential selective system that combined biosorption with biodegradation was evaluated as a feasible process for the removal of Cr(VI) and m-cresol from effluents. Cr(VI) biosorption on pretreated chestnut shells showed 100% metal removal and modelling efforts demonstrated that the pseudo-second order kinetic model and Langmuir isotherm fit well the process behaviour. Thus, the treated stream was an appropriate environment for the biodegradation of m-cresol using a laccase-producer fungus, Phlebia radiata. Two bioreactor configurations, rotating drum and modified-airlift, were studied using the fungus grown on chestnut shells, which act as support-substrate as well as oxidative enzyme inductor increasing the laccase activity up to 1000 U L-1. The best bioreactor, rotating drum, reached 100% removal in 7 days. Finally, the best configuration for the sequential selective system was modelled operating in continuous mode by the breakthrough curves generated using FASTv2.0 and the design bioreactor flow model.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 9