Removal of radioactive cesium from an aqueous solution via bioaccumulation by microalgae and magnetic separation | Scientific Reports Open Access Published: 12 …
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We examined the possibility of applying magnetic separation method using the superconducting magnet, which can process a large amount of the soil in high …
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The domestic space-borne cesium clock is composed of cesium beam tube, servo circuit and structural parts. The cesium beam tube uses the single-beam magnetic separation scheme, which is widely used in commercial cesium clocks on the ground, that is only one atom beam enters the microwave cavity, which can effectively utilize the …
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Removal of Radioactive Cesium Using Prussian Blue Magnetic Nanoparticles Sung-Chan Jang 1,2, Sang-Bum Hong 1, Hee-Man Yang 1, Kune-Woo Lee 1, ... The separation of radioactive cesium (137Cs) using a magnet from Prussian blue-coated PDDA@Iron oxide. Nanomaterials 2014, 4 898
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In this study, we developed a new volume reduction technique for cesium contaminated soil by magnetic separation. Cs in soil is mainly adsorbed on clay which is the smallest particle constituent ...
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Abstract. In this study, a novel cesium scavenger, magnetic copper hexacyanoferrate (III)/pomelo peel biochar (CuHCF-MPC), is prepared. CuHCF-MPC exhibits remarkable Cs+adsorption properties including rapid kinetics, stability over a …
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In this study, a novel cesium scavenger, magnetic copper hexacyanoferrate (III)/pomelo peel biochar (CuHCF-MPC), is prepared. CuHCF-MPC exhibits remarkable Cs + adsorption properties including rapid kinetics, stability over a wide pH range (pH ≈3–10), high cesium adsorption capacity (145.65 mg g −1 at pH 7), high removal efficiency …
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MHCFs, typical coordination polymers, are widely used for separation of Cs + ions. • Cesium is a major fission product of uranium and exists in radioactive wastewater. ... These magnetic adsorbents can be easily separated from aqueous solutions by means of a magnetic field. Above all, immobilization of MHCFs onto various supporters by ...
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This formulation, termed MagCE, consists of a ferromagnetic porous structure and alkaline- and salt-resistant nickel ferrocyanide. It has potent cesium-adsorption- and …
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Materials and Methods. In this work, a rapid separation and biodegradation magnetic Prussian blue nanosphere adsorbent was designed by double emulsion technique and stably assembled technique …
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Magnetic separation of the cesium-adsorbed MagCE from fly ash slurry (large scale study) Fly ash (100 g) was mixed with water (1 L) to obtain slurry at 200 rpm for 24 h in a storage bottles (1000 ...
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Adsorption-based methods are high efficient in separation of cesium ions from aqueous streams, and adsorption of cesium ions has been investigated intensively …
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Magnetic flocculation is an emerging technology that combines conventional flocculation and magnetic separation, which has been widely applied in various water treatments [16]. Magnetite nanoparticles ... Study of the strength of cesium and strontium isotopes fixing by silts of contaminated water reservoirs. Radiokhimiya, 38 (1996), pp. …
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In particular, the release of radioactive cesium (137 Cs) was a major concern because of its long half-life (30.2 years), high water solubility, and rapid uptake by terrestrial and aquatic organisms due to its chemical similarity to potassium (K +) 1, 2. ... For the magnetic separation and removal of radioactive 137 Cs, D.
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combined with magnetic separation, the 200-mesh sieve was inserted into the chamber in the vertical direction. After magnetic separation, the particle size distribution of each soil fraction was analyzed. In addition, waste volume reduction and the Cs removal from contaminated soil by using magnetic-sieving separation were assessed.
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Abstract. In this paper, we developed a new volume reduction method for contaminated soil by magnetic separation. We succeeded in selective separation of paramagnetic 2:1-type clay minerals, which ...
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The magnetic support will combined with AMP through metal chelating between chitosan and Mo (VI) of AMP. The composite was characterized and cesium …
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The separation of cesium ions from aqueous solutions is challenging, owing to its physical and chemical characteristics. The alkali metal group that includes Na + …
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Various cesium removal techniques have been explored and applied for practical use, including precipitation, evaporation, solvent extraction and adsorption [5, 6]. Among these separation methods, adsorption has been widely investigated for its advantages of high efficiency and selectivity, maneuverability and economy .
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Magnetic separation is a promising and cost-effective technique for collecting the consumed powder of zeolite by applying external magnetic fields [22]. ... The PSMGPB nanocomposite showed an improved adsorption capacity of 1.609 mmol/g for cesium, compared with magnetic graphene oxide Prussian blue, magnetic pectin Prussian blue, ...
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The invention provides a scheme of a small single-beam magnetic separation state cesium beam tube with a focusing function, namely on the basis of a cesium oven-A state selection magnet-microwave cavity-B state selection magnet-detector of a traditional cesium beam tube, a focusing magnet is added behind the A state selection magnet to …
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Magnetic Prussian blue (PB) nanocomposites were synthesized by binding PB to a core of magnetite (Fe3O4) nanoparticles for highly efficient and rapid separation of cesium (Cs+) from aqueous solution.
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The superconducting magnetic separation was examined to reduce the volume of cesium contaminated soil by the Fukushima Daiichi nuclear power plant accident. By using superconducting high gradient magnetic separation, silt and clay with high radioactive concentration due to the large particle surface area per unit mass can be …
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The condition in which magnetic separation is possible is F M > F D.It is expressed as Eq. (4) by the particle size and the fluid velocity by using Eqs. (2), (3) and Table 1. (4) 3.5 × 10 9 r p 2 > v f The coefficient 3.5 × 10 9 is expressed by the unit of 1/ms. It was supposed that the flow velocity in which most of the particles can be separated was …
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PMID: 31300718 PMCID: PMC6626050 DOI: 10.1038/s41598-019-46586-x We evaluated the potential sequestration of cesium (Cs) by microalgae under heterotrophic …
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In magnetic separation, 2:1 type clay minerals, which adsorb cesium strongly and show paramagnetism, are removed from soil suspension of silt and clay, and then the contaminated soil can be ...
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Decontamination and volume reduction of radioactive substances, especially cesium ion, are desired issue. This study proposed a decontamination method of the soil by the magnetic separation using superconducting magnet. Cesium ion was adsorbed by Prussian blue in the potassium iodide solution. We succeeded in separating selectively …
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Based on the results, we proposed a magnetic separation system of radioactive cesium by using high gradient magnetic separation with a superconducting magnet. Discover the world's research 20 ...
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In this work, novel magnetic Prussian blue nanospheres (MPBNs) were developed from polylactic acid nanospheres as a carrier, loaded with Fe 3 O 4 nanoparticles (Fe 3 O 4 NPs) inside and PB NPs …
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Notably, these MPBNs could be effectively separated from water by a magnetic field, facilitating engineering applications in cesium-containing wastewater. Discover the world's research 25+ million ...
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Enhanced removal of cesium by potassium-starved microalga, Desmodesmus armatus SCK, under photoheterotrophic condition with magnetic separation Article Mar 2020
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We also applied magnetic nanoparticles coated with a cationic polymer (polyethylenimine) to separate 137 Cs-containing microalgal biomass under a magnetic field. Our technique of combining bioaccumulation and magnetic separation successfully removed more than 90% of the radioactive 137 Cs from an aqueous medium. These …
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Selective separation of cesium ions from nuclear wastes is a subject of significant interest and chemically a challenging task. These monovalent ions lack chemical unique characteristics and can be competed for reactive sites by monovalent Group I and divalent Group II cations. ... Distribution of cesium on Zn hexacyanoferrate (II) magnetic ...
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This review focused on cesium removal using various separation technologies, including chemical precipitation, solvent extraction, membrane separation, and adsorption. The key restraints for cesium removal, as well as the recent progress of these methods have also been discussed. ... A cesium magnetic ion-imprinted polymer, …
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In this work, we elucidate polymer-layered hollow Prussian blue-coated magnetic nanocomposites as an adsorbent to remove radioactive cesium from environmentally contaminated water. To do this, Fe₃O₄ nanoparticles prepared using a coprecipitation method were thickly covered with a layer of cationic polymer to attach …
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Highlights A novel magnetic zeolite A nanocomposite was synthesized and characterized. Synthesis was performed through a new two sequential steps method. The nanocomposite was separated efficiently by fast and simple magnetic separation. It showed higher sorption capacity for Cs + and Sr 2+ than microzeolite composite. The …
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