Ternary Mixture Biodegraded by a Fungal-Bacterial Consortium: Interaction, Kinetic Analysis, and Performance Evaluation
Publication: Journal of Environmental Engineering
Volume 145, Issue 10
Abstract
Multiorganic compounds are commonly found in contaminated environments, and the utilization of pure microbial strains for their removal is inefficient. The present study was conducted to evaluate whether the use of a consortium of Aspergillus fumigatus HD2, Ophiostoma stenoceras LLC, and Zoogloea resiniphila HJ showed improved removal of a mixture of alpha ()-pinene, n-butyl acetate, and ortho (o)-xylene in water when compared to the use of each strain. Carbon balance analysis indicated that more mineralized compounds were produced by the consortium. Microbial analysis indicated the ratio of A. fumigates and Z. resiniphila remained , while O. stenoceras grew more slowly than the other two strains. Substrate inhibition models showed that the Levenspiel model was optimal for -pinene and n-butyl acetate, while the Edwards model was better for o-xylene. Finally, gaseous ternary mixture removal was achieved in a continuous-flow system, indicating that this consortium would have great potential in future full-scale applications of organic treatments.
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Acknowledgments
Financial support from the Natural Science Foundation of Zhejiang Province (LY18B060012) and the Key Natural Science Foundation of Zhejiang Province (LZ17E080001) are gratefully acknowledged.
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Published In
Journal of Environmental Engineering
Volume 145 • Issue 10 • October 2019
Copyright
©2019 American Society of Civil Engineers.
History
Received: Aug 31, 2018
Accepted: Feb 15, 2019
Published online: Aug 12, 2019
Published in print: Oct 1, 2019
Discussion open until: Jan 12, 2020
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