selenite magnetic separation

Dissolved‑selenium removal using magnetic nanoparticles: A …

2. Magnetic nanoparticles. Nanotechnology is a highly concerned technology with fast development [33].MNPs are nano-scale particles having magnetic properties that facilitate the reuse of the sorbents, which have been favored by researchers for their advantages of environmental protection, easy separation, and low cost …

Magnetic Separators | How it works, Application

The use of magnetic separators offers multiple benefits. First, they contribute to the quality enhancement of products by eliminating magnetic particles. This results in increased consumer trust and regulatory compliance. Second, they protect processing machinery from potential damage caused by metal contaminants, reducing …

Removal mechanism of selenite by Fe3O4-precipitated mesoporous magnetic

In this study, ternary magnetic materials ([email protected]2O4@Fe3O4([email protected]@F)) were prepared via sintering method for selenite removal from aqueous solution, and under the optimized ...

Centrifugal high gradient magnetic separation of fine …

1. Introduction. High gradient magnetic separation (HGMS) has been used in a variety of technical processes, such as for biochemical separation and pollutants purification (García et al., 2015, Hayashi et al., 2010, Hoffmann et al., 2002, Menzel et al., 2012).But, this method has gained the most applications in the field of mineral …

Efficient removal of selenite in aqueous solution by MOF

Furthermore, the dual function composite MU-2's VSM studies showed that its magnetic saturation is 3.07 emu g⁻¹ that is suitable for magnetic separation after desired reaction from aqueous media.

Magnetic adsorbents for selective removal of selenite

Carbon-supported magnetic nanoparticle adsorbents (C-MNA) displayed higher adsorption values compared to MNA from 5 to 50 ppm selenite concentrations, …

Magnetic adsorbents for selective removal of selenite from …

Here these improvements will expand the range of water sources that can be treated, as well as easing adsorbent collection through magnetic separation.}, doi = {10.1080/01496395.2019.1617742}, journal = {Separation Science and Technology}, number = 13, volume = 54, place = {United States}, year = {Sat May 18 00:00:00 EDT …

Magnetic Separation

3.11.2.5 Magnetic Separation. Magnetic separation is a process where a contaminant is first attached onto a magnetic carrier material (e.g., magnetite), and subsequently, the contaminant-laden carrier is separated under a magnetic field. The simplest magnetic separator is a permanent magnet.

Chemical interferences when using high gradient magnetic separation …

Among the most promising methods for lake restoration Merino-Martos et al. [3] suggested the P reduction in P enriched inlet waters by using magnetic (carbonyl Fe) particles as seeding agents in combination with high gradient magnetic separation (HGMS) because both the very large volumes of water that can be easily handled and …

Magnetic adsorbents for selective removal of selenite from …

@article{osti_1515679, title = {Magnetic adsorbents for selective removal of selenite from contaminated water}, author = {Evans, F. and Ivancevic, Marko R. and Yan, Jiaqiang and Naskar, Amit K. and Levine, Alan M. and Lee, Richard J. and Tsouris, Costas and Paranthaman, M. Parans}, abstractNote = {Novel meso- and …

Mechanisms of selenium removal by partially oxidized …

Selenite immobilization is driven by formation of inner-sphere adsorption complexes. •. Partially oxidized magnetite nanoparticles behave like maghemite phases. Abstract. Magnetite nanoparticles are a promising cost-effective material for the …

Separation of Selenite from Inorganic Selenium Ions …

Separation of Selenite using TiO2 Magnetic Nanoparticles Bull. Korean Chem. Soc. 2013, Vol. 34, No. 11 3363 Again, the synthesized TiO2@SiO2/Fe3O4 nanoparticles had two noticeable functionalities: photocatalytic reduction of selenium cations to Se 0 atoms by TiO 2 shell and an attractive

Separation of Selenite from Inorganic Selenium Ions using …

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Phase-separation inhibitors and prevention of selenite …

The variation of the phase-separation temperature (Tc) was studied in lenses during formation of cataracts induced by a subcutaneous injection of sodium selenite. In normal control animals, the Tc decreased monotonically with increasing age. ... Clark JI. 31P nuclear magnetic resonance and laser spectroscopic analyses of lens transparency ...

Magnetic adsorbents for selective removal of selenite from …

Carbon-supported magnetic nanoparticle adsorbents (C-MNA) displayed higher adsorption values compared to MNA from 5 to 50 ppm selenite concentrations, maximizing at 48 ± …

Water-dispersible magnetic nanoparticle–graphene oxide …

Our results show that MGO composites have favorable removal capability of both selenite and selenate in water with important potential practical applications in removing selenium from wastewater. ... The final synthesized product was separated by magnetic separation and then washed several times by acetone (a good solvent for …

Separation of Selenite from Inorganic Selenium Ions using …

Separation of Selenite from Inorganic Selenium Ions using TiO2 Magnetic Nanoparticles. November 2013. Authors: Jongmin Kim. H.B. Lim. Abstract. A simple and …

Magnetization and Magnetic Separation | SpringerLink

First Online: 31 March 2023. 9 Accesses. Download reference work entry PDF. Magnetization and magnetic separation is a method of magnetic separation by enhancing the volume magnetism or surface magnetism of minerals. By changing the volume magnetism (volume magnetization) or surface magnetism (surface …

Detection of Leishmania-specific DNA and surface antigens …

The development of reliable diagnostic assays that do not require dedicated equipment or highly trained personnel would improve early diagnosis and effective control. For this purpose, a combination of magnetic bead and cadmium selenite quantum dot probes was applied for the detection of Leishmania-specific surface antigens (proteins) and DNA.

Separation of Selenite from Inorganic Selenium Ions using TiO

The measured selenite concentration was continuously decreased to 1.35 μg/mL after 180 min indicating a reduction of 81.4% after 3 h photoreaction. After reduction, the magnetic nanoparticles with the adsorbed selenium atoms were collected by a magnetic separation, and then washed three times with deionized water. Figure 4.

Separation of Selenite from Inorganic Selenium Ions using TiO

A simple and quick separation technique for selenite in natural water was developed using T iO2 T i O 2 @ SiO2/F e3O4 S i O 2 / F e 3 O 4 nanoparticles. For the synthesis of …

Fabrication of ferrihydrite-loaded magnetic sugar cane

Ferrihydrite-loaded magnetic sugar cane bagasse charcoal adsorbent (FH@Fe 3 O 4 @SCBC) was synthesized.. FH@Fe 3 O 4 @SCBC realized enhanced adsorptive separation performance for Se(IV).. FH@Fe 3 O 4 @SCBC achieved maximum theoretical adsorption capacity for Se(IV) of 95.15 mg g −1.. Se(IV) adsorption efficiency …

Magnetic nanomaterials for the removal, separation and …

On the basis of the SPE method, some steps are applied to make the extraction phase ready for analysis. These steps are as follows: sorption of the extraction phase on an adsorbent (fiber, cartridge, magnetic nanomaterials, stir-bar), conditioning with functional groups, washing with organic solvent or water and performing the elution …

Preparation of Diatomite Supported Calcium Ferrite Ternary Magnetic

@article{Long2021PreparationOD, title={Preparation of Diatomite Supported Calcium Ferrite Ternary Magnetic Material and its Adsorption of Selenite in Aqueous Solution}, author={Huyan Long and Powei Gu and Gang Jin and Hai Feng Su}, journal={Colloids and Surfaces A: Physicochemical and Engineering Aspects}, …

Efficient removal of selenite in aqueous solution by

Although some magnetic MOFs composites have been employed to adsorb pollutants in water body, the related studies often focus on the simple separation of nano-Fe 3 O 4, while the synergistic effect of magnetic MOFs composites in the adsorption and removal of pollutants is seldom considered [28], [29].

Application of magnetic nanoparticles in nucleic acid detection

Firstly, the magnetic separation performance of MNPs should be improved, thus meeting the application requirements in fast response and accurate positioning under ... et al. Detection of Leishmania-specific DNA and surface antigens using a combination of functionalized magnetic beads and cadmium selenite quantum dots. J Microbiol …

Selective binding, magnetic separation and purification of

In previous studies, we synthesized the magnetic core-shell structured Fe 3 O 4 /PMG/IDA-Ni 2+ nanoparticles. The Ni 2+ on the surface of nanoparticles provides abundant docking sites for histidine, and the composite nanoparticles showed potential applications in the separation and purification of histidine-tagged (His-tagged) proteins. Meanwhile, the …

Aging of zerovalent iron in various coexisting solutes

Separation and Purification Technology. Volume 191, 31 January 2018, Pages 94-100. Aging of zerovalent iron in various coexisting solutes: Characteristics, reactivity toward selenite and rejuvenation by weak magnetic field. Author links open overlay panel Xueying Zhang a, Jinxiang Li a, Yuankui Sun a, Lina Li b, Bingcai Pan c, …

Separation of Transition Metal Ions in an Inhomogeneous Magnetic …

The magnetic separation was investigated for Fe 3+, Co 2+, Ni 2+, Cu 2+, Zn 2+, Ag +, and Cd 2+ ions in an inhomogeneous field of 410 kOe 2 cm-1.By application of the field to the solutions spotted on silica gel, the Fe 3+, Co 2+, Ni 2+, and Cu 2+ ions were attracted toward the field center, but the Zn 2+, Ag +, and Cd 2+ ions stayed at the spot origin. …

Separations | Free Full-Text | Separation of Ilmenite from …

Vanadium titanomagnetite (VTM) is an important mineral for developing titanium resources, but the comprehensive recovery of ilmenite separation is extremely poor, resulting in the low-efficiency utilization of titanium resources. Here, the separation of ilmenite from VTM ore is studied by combining magnetic separation and flotation technologies. In …