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Phenol wastewater remediation: Advanced oxidation processes coupled to a biological treatment

Lookup NU author(s): Professor Ian Metcalfe

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Abstract

Nowadays, there are increasingly stringent regulations requiring more and more treatment of industrial effluents to generate product waters which could be easily reused or disposed of to the environment without any harmful effects. Therefore, different advanced oxidation processes were investigated as suitable precursors for the biological treatment of industrial effluents containing phenol. Wet air oxidation and Fenton process were tested batch wise, while catalytic wet air oxidation and H2O2-promoted catalytic wet air oxidation processes were studied in a trickle bed reactor, the last two using over activated carbon as catalyst. Effluent characterisation was made by means of substrate conversion (using high liquid performance chromatography), chemical oxygen demand and total organic carbon. Biodegradation parameters (i.e. maximum oxygen uptake rate and oxygen consumption) were obtained from respirometric tests using activated sludge from an urban biological wastewater treatment plant (WWTP). The main goal was to find the proper conditions in terms of biodegradability enhancement, so that these phenolic effluents could be successfully treated in an urban biological WWTP. Results show promising research ways for the development of efficient coupled processes for the treatment of wastewater containing toxic or biologically non-degradable compounds. © IWA Publishing 2007.


Publication metadata

Author(s): Rubalcaba A, Suarez-Ojeda ME, Stuber F, Fortuny A, Bengoa C, Metcalfe I, Font J, Carrera J, Fabregat A

Publication type: Conference Proceedings (inc. Abstract)

Publication status: Published

Conference Name: Water Science and Technology: Oxidation Technologies for Water and Wastewater Treatment IV, Selected papers of the 4th International Conference on Oxidation Technologies for Water and Wastewater Treatment

Year of Conference: 2007

Pages: 221-227

ISSN: 0273-1223

Publisher: IWA Publishing

URL: http://dx.doi.org/10.2166/wst.2007.412

DOI: 10.2166/wst.2007.412

PubMed id: 17674852

Library holdings: Search Newcastle University Library for this item

ISBN: 9781843395959


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