Ruthenium recovery from acetic acid waste water through sorption with bacterial biosorbent fibers

Kwak, In Seob; Won, Sangchul; Chung, Yong Sik; Yun, Yeoung‐Sang

doi:10.1016/j.biortech.2012.10.146

Cited by 63 publications

(29 citation statements)

References 18 publications

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“…Polyethyleimine (PEI)-coated Corynebacterium glutamicum fibers yielded 110 mg/g Ru-loading from an acetic acid solution. This result was a 16.5-fold higher efficiency than the commercially used ion-exchange resin [73], and 6.9-fold higher with the surface modified biomass blended with chitosan [74]. The R&D works performed on reclamation via biosorption of precious metals from various secondary sources have been summarized in Tables 2-5.…”

Section: Au + 8cn + O + 2h O → 4au Cn + 4ohmentioning

confidence: 92%

“…The experimental results showed that an acid pre-treatment of Rhodopseudomonas palustris cells could improve Ru-loading from 86 to 145 mg/g dry cells along with good selectivity over the co-existing metals Ni and Zn in effluent [73]. Polyethyleimine (PEI)-coated Corynebacterium glutamicum fibers yielded 110 mg/g Ru-loading from an acetic acid solution.…”

Section: Au + 8cn + O + 2h O → 4au Cn + 4ohmentioning

confidence: 99%

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Bio-Reclamation of Strategic and Energy Critical Metals from Secondary Resources

Ilyas

Kim

Lee

et al. 2017

Metals

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Abstract:Metals with an average crustal abundance of <0.01 ppm, which are high in supply shortage due to soaring demand, can, under the excessive environmental risk and <1% recycling rate of their production, be termed as 'critical' in a limited geo-boundary. A global trend to the green energy and low carbon technologies with geopolitical scenario is challenging for the sustainable reclamation of these metals from secondary resources. Among the available processes, bio-reclamation can be a sustainable technique for extracting and concentrating these metals. Therefore, in the present paper, the potential reclamation of critical metals (including rare earth elements, precious metals, and a common nuclear fuel element, uranium) via their interaction with microbe/s has been reviewed.

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Section: Au + 8cn + O + 2h O → 4au Cn + 4ohmentioning

confidence: 92%

Section: Au + 8cn + O + 2h O → 4au Cn + 4ohmentioning

confidence: 99%

Bio-Reclamation of Strategic and Energy Critical Metals from Secondary Resources

Ilyas

Kim

Lee

et al. 2017

Metals

View full text Add to dashboard Cite

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“…As reported in a previous work, the biosorption isotherm study was conducted to evaluate the maximum Ru uptakes of raw biomass, PBBF, and anion-exchange resin (Lewatit MonoPlus M600). 15 According to the Langmuir model, the maximum Ru uptakes of raw biomass, PBBF, and Lewatit MonoPlus M600 were estimated to be 16.0, 110.5, and 6.7 mg/g, respectively. The maximum Ru uptake of PBBF was enhanced by 6.9-and 16.5-fold compared to those of raw biomass and Lewatit MonoPlus M600, respectively.…”

Section: Resultsmentioning

confidence: 99%

Biosorption–Incineration–Leaching–Smelting Sequential Process for Ru Recovery from Ru-Bearing Acetic Acid Waste Solution

Won

Kwak²,

Mao

et al. 2015

Ind. Eng. Chem. Res.

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This study introduces a new method for the recovery of metallic Ru from Ru-bearing acetic acid waste solution through a biosorption−incineration−leaching−smelting sequential process. As a powerful biosorbent for binding anionic Ru complexes, polyethylenimine-(PEI-) modified bacterial biosorbent fiber (PBBF) was prepared by extruding a blended slurry of chitosan and Corynebacterium glutamicum biomass in fiber form, applying a PEI coating, and cross-linking with glutaraldehyde. Biosorption isotherm studies revealed that PBBF showed a much higher Ru uptake than raw biomass and anion-exchange resin (Lewatit MonoPlus M600). In addition, PBBF was stable at water contents less than 10%, and the Ru uptake of PBBF increased with increasing temperature. After sorption, Ru-sorbed PBBF was incinerated, and the metallic form of Ru was recovered. Several oxidizing agents, such as sodium hypochlorite, potassium permanganate, and aqua regia, were sequentially used to leach out the impurities from the ash. Through X-ray photoelectron spectroscopy analysis, it was found that the recovered Ru was present in solid metallic form. According to X-ray fluorescence spectrometry analysis, the metallic Ru achieved from this method had a high weight percentage of 99.75%.

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“…Residence time reported in previous studies is generally long ~3.81 to 25 min [15,16,17,18]. In this study, an effective column process with a low residence time of 0.2618 min was developed using the fast kinetic PWPAN.…”

Section: Resultsmentioning

confidence: 99%

The Preparation of Modified Industrial Waste Polyacrylonitrile for the Adsorptive Recovery of Pt(IV) from Acidic Solutions

et al. 2016

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Sorption technique is one of the most effective methods for recovering precious metals from wastewater solutions; however, its main drawbacks of the traditional sorbents are the slow kinetics and relatively low sorption capacities. As a solution, thin sorbent fibers have been highlighted because they can lead to fast adsorption kinetics due to their high surface areas and numerous binding sites. In this sense, the applicability of an industrial waste polyacrylonitrile (PAN) textile was examined to recover Pt(IV) from acid solutions. In order to enrich cationic functional groups on the surface of a PAN textile, the textile was chemically modified via polyethylenmine (PEI) coating. Afterwards, using PEI-coated PAN fiber, batch sorption experiments (isotherms and kinetics) and column experiments were conducted to evaluate its sorption performance toward Pt(IV). It was clearly revealed in column experiments that the PEI-coated waste PAN textile (WPAN) has fast kinetics and good performance for Pt(IV) recovery.

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Ruthenium recovery from acetic acid waste water through sorption with bacterial biosorbent fibers

Cited by 63 publications

References 18 publications

Bio-Reclamation of Strategic and Energy Critical Metals from Secondary Resources

Bio-Reclamation of Strategic and Energy Critical Metals from Secondary Resources

Biosorption–Incineration–Leaching–Smelting Sequential Process for Ru Recovery from Ru-Bearing Acetic Acid Waste Solution

The Preparation of Modified Industrial Waste Polyacrylonitrile for the Adsorptive Recovery of Pt(IV) from Acidic Solutions

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