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Synergistic and Simultaneous Biosorption of Phenanthrene and Iodine from Aqueous Solutions by Soil Indigenous Bacterial Biomass as a Low-cost Biosorbent by D. Zhang; S. G. Lu; X. Q. Song; J. F. Zhang; Z. M. Huo; H. T. Zhao is a Materials Science article available to read on EtoBox.

What is Synergistic and Simultaneous Biosorption of Phenanthrene and Iodine from Aqueous Solutions by Soil Indigenous Bacterial Biomass as a Low-cost Biosorbent about?

The removal of phenanthrene and iodine from aqueous solutions in single and binary systems by inactivated soil indigenous bacterial biomass (SIBB), as well as affecting factors, were evaluated. Sorption kinetic and isotherm studies were carried out to investigate the synergistic effects of phenanthrene and iodine. Optimal parameters for the biosorption process included a solution pH of 6.0 and biosorbent dosage of 0.75 g L. The ionic strength significantly decreased the biosorption of both phenanthrene and iodine in single conditions, while no obvious influences were found in the binary conditions. A pseudo-second-order model was well fitted to the kinetic biosorption data for both phenanthrene and iodine. The results showed that the presence of co-solute accelerated the biosorption processes and the pseudo-second-order biosorption rates ( ) for phenanthrene and iodine increased from 0.005441 to 0.009825 g mg min and from 0.000114 to 0.000223 g mg min, respectively. The SIBB showed strong affinity with both phenanthrene and iodine, with a partition coefficient (Linear model) of 6892.4 L kg for phenanthrene and affinity parameter (Langmuir model) of 232 500 L kg for iodine. The pres

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Author

D. Zhang; S. G. Lu; X. Q. Song; J. F. Zhang; Z. M. Huo; H. T. Zhao

Publisher

Royal Society of Chemistry (RSC)

Published

2018

Language

EN

Field

Materials Science (Physical Sciences)