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Utilization of PEI-modified Corynebacterium glutamicum biomass for the recovery of Pd(II) in hydrochloric solution

descriptionPublicationkeyboard_double_arrow_right Article , Journal 01 Feb 2011Publisher:Elsevier BVJournal:Bioresource Technology, volume 102, pages 3,888-3,893 (issn: 0960-8524,

Authors: Juan Mao; Jiyeong Park; Yeoung-Sang Yun; Sung Wook Won;

doi: 10.1016/j.biortech.2010.11.106

pmid: 21185173

Utilization of PEI-modified Corynebacterium glutamicum biomass for the recovery of Pd(II) in hydrochloric solution

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Abstract

A new type of biosorbent was developed for binding anionic precious metals through cross-linking waste biomass Corynebacterium glutamicum with polyethylenimine (PEI). This biomass was evaluated for the removal and recovery of palladium and compared to commercial adsorbents, such as Amberjet 4200 Cl, Lewatit Monoplus TP 214, SPC-100, and SPS-200. The kinetic experiments revealed that the sorption equilibrium was reached with 30 min for the PEI-modified biomass. The maximum uptake of the biosorbent was 176.8 mg/g, which was calculated using the Langmuir model. The Pd(II) maximum uptake exhibited the following order: Amberjet 4200 Cl>Lewatit Monoplus TP 214>PEI-modified biomass>SPC-100>SPS-200. Acidified thiourea in 1.0M HCl was used to desorb Pd(II) from all of the sorbents examined.

Related Organizations

Jeonbuk National University
Korea (Republic of)
Jeonbuk National University
Korea (Republic of)

Keywords

Time Factors, Dose-Response Relationship, Drug, Surface Properties, Thiourea, Water Purification, Corynebacterium glutamicum, Kinetics, Cross-Linking Reagents, Polyethyleneimine, Adsorption, Biomass, Hydrochloric Acid, Palladium, Water Pollutants, Chemical, Biotechnology

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