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Int. J. Environ. Res. Public Health 2015, 12(1), 371-384; doi:10.3390/ijerph120100371

Biodegradation Kinetics of Tetrahydrofuran, Benzene, Toluene, and Ethylbenzene as Multi-substrate by Pseudomonas oleovorans DT4

1
College of Biological and Environmental Engineering, Zhejiang University of Technology, Hangzhou 310032, China
2
School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310012, China
*
Authors to whom correspondence should be addressed.
Academic Editor: Christian Kennes
Received: 2 November 2014 / Accepted: 22 December 2014 / Published: 31 December 2014
(This article belongs to the Special Issue Bioprocesses for Air Pollution Control)
View Full-Text   |   Download PDF [411 KB, uploaded 31 December 2014]   |  

Abstract

The biodegradation kinetics of tetrahydrofuran, benzene (B), toluene (T), and ethylbenzene (E) were systematically investigated individually and as mixtures by a series of aerobic batch degradation experiments initiated by Pseudomonas oleovorans DT4. The Andrews model parameters, e.g., maximum specific growth rates (μmax), half saturation, and substrate inhibition constant, were obtained from single-substrate experiments. The interaction parameters in the sum kinetics model (SKIP) were obtained from the dual substrates. The μmax value of 1.01 for tetrahydrofuran indicated that cell growth using tetrahydrofuran as carbon source was faster than the growth on B (μmax, B = 0.39) or T (μmax, T = 0.39). The interactions in the dual-substrate experiments, including genhancement, inhibition, and co-metabolism, in the mixtures of tetrahydrofuran with B or T or E were identified. The degradation of the four compounds existing simultaneously could be predicted by the combination of SKIP and co-metabolism models. This study is the first to quantify the interactions between tetrahydrofuran and BTE. View Full-Text
Keywords: biodegradation; tetrahydrofuran; benzene; toluene; ethylbenzene; kinetics model biodegradation; tetrahydrofuran; benzene; toluene; ethylbenzene; kinetics model
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Chen, D.-Z.; Ding, Y.-F.; Zhou, Y.-Y.; Ye, J.-X.; Chen, J.-M. Biodegradation Kinetics of Tetrahydrofuran, Benzene, Toluene, and Ethylbenzene as Multi-substrate by Pseudomonas oleovorans DT4. Int. J. Environ. Res. Public Health 2015, 12, 371-384.

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