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Chemosphere. 2016 Jul;155:94-99. doi: 10.1016/j.chemosphere.2016.03.140. Epub 2016 Apr 22.

Research on degradation product and reaction kinetics of membrane electro-bioreactor (MEBR) with catalytic electrodes for high concentration phenol wastewater treatment.

Author information

1
School of Environmental & Chemical Engineering, Tianjin Polytechnic University, Tianjin 300387, China; State Key Laboratory of Hollow Fiber Membrane Materials and Processes, Tianjin Polytechnic University, Tianjin 300387, China. Electronic address: wangtao_20000@hotmail.com.
2
School of Environmental & Chemical Engineering, Tianjin Polytechnic University, Tianjin 300387, China.
3
School of Material Science & Chemical Engineering, Tianjin University of Science & Technology, Tianjin 300457, China.
4
School of Computer Science & Software Engineering, Tianjin Polytechnic University, Tianjin 300387, China.

Abstract

The membrane electro-bioreactor (MEBR) is a novel technology, it treats wastewater by combining membrane filtration, electrokinetic phenomena, and biological processes in one reactor. This paper aims to deal with hard biodegradation and high concentration phenol wastewater. Investigating the influence factors such as initial concentration, voltage, pH value, temperature and mixed liquor suspended solids (MLSS) toward phenol degradation process in electrocatalytic process and membrane bioreactor (MBR), and then apply the optimum conditions in the MEBR system. Results of continuous flow experiments demonstrated that MEBR increased the quality of the treated wastewater than conventional MBR. The above technics followed the zero-order reaction kinetics. The removal efficiency of MEBR was about 11.1% higher for phenol than the sum of the two individual processes. With the help of gas chromatography/mass spectrometry (GC-MS), this qualitative analysis looks at the degradation products of phenol generated in MEBR, through which 2,6-di-tert-butyl-p-benzoquinone was confirmed as the main degradation product.

KEYWORDS:

Biodegradation; Membrane bioreactor (MBR); Membrane electro-bioreactor (MEBR); Phenol

[Indexed for MEDLINE]

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