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Issue 4, 2014
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Bioaugmentation involving a bacterial consortium isolated from the rhizosphere of Spirodela polyrhiza for treating water contaminated with a mixture of four nitrophenol isomers

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Abstract

A flask-scale laboratory study was performed to assess the bioaugmentation of water contaminated with a mixture of 2-nitrophenol, 3-nitrophenol, 4-nitrophenol and 2,4-dinitrophenol by using a bacteria consortium consisting of three nitrophenol-degrading bacteria strains (Pseudomonas sp. strain MFR-1, Pseudomonas sp. strain PFR-1 and Rhodococcus sp. strain DFR-1), reinoculated into the roots of Spirodela polyrhiza. The selected strains were colonized into the root at approximately 104 to 106 colony-forming units (CFU per plant). The high populations remained stable through five sequential two-days degradation cycles and complete nitrophenol removal was achieved within five-repeated cycles. Hence, inoculation of subjected degraders into the roots of aquatic plants is an effective treatment for nitrophenol-contaminated effluents or aquatic resources.

Graphical abstract: Bioaugmentation involving a bacterial consortium isolated from the rhizosphere of Spirodela polyrhiza for treating water contaminated with a mixture of four nitrophenol isomers

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Article information


Submitted
05 Sep 2013
Accepted
11 Nov 2013
First published
11 Nov 2013

RSC Adv., 2014,4, 1616-1621
Article type
Paper

Bioaugmentation involving a bacterial consortium isolated from the rhizosphere of Spirodela polyrhiza for treating water contaminated with a mixture of four nitrophenol isomers

R. A. Kristanti, T. Toyama, T. Hadibarata, Y. Tanaka and K. Mori, RSC Adv., 2014, 4, 1616
DOI: 10.1039/C3RA44892D

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