• Quick Search:

ball mill ball mills grinding

Comments

Study on magnetic separation for decontamination of

Two types of soil sample from the landfill site, i.e., plain soil and soil sample after the soil-washing process, have been sampled and tested with the superconducting magnetic separation system.

get price

Study on Decontamination of Contaminated Soils by

In this paper, we examined a new method for decontamination of soils by magnetic separation to reduce the volume of contaminated soils. In this method, we separate paramagnetic 2:1 type clay

get price

Study on Decontamination of Radioactive Cesium From

In this study, we examined the possibility for the soil decontamination of Cs-137, the main radioactive species with longer half-life, by means of the magnetic separation with a high-temperature

get price

(PDF) Magnetic sorbent for soil remediation ResearchGate

At a soil:sorbent ratio 1:1–1:6 in the suspension, the fraction of exchangeable radiocesium in soil at a 2 hours contact was diminished from 56–59% to 48–12%, the decontamination

get price

Magnetic separation for soil decontamination (Conference

1993-2-1  @article{osti_10128823, title = {Magnetic separation for soil decontamination}, author = {Avens, L R and Worl, L A and deAguero, K J and Padilla, D D and Prenger, F C and Stewart, W F and Hill, D D and Tolt, T L}, abstractNote = {High gradient magnetic separation (HGMS) is a physical separation process that is used to extract magnetic particles from mixtures.

get price

Magnetic separation for soil decontamination (Conference

1993-1-1  OSTI.GOV Conference: Magnetic separation for soil decontamination. Magnetic separation for soil decontamination. Full Record; Other Related Research

get price

Study on magnetic separation for decontamination of

2014-9-15  The accident of Fukushima Daiichi nuclear power plant caused the diffusion of radioactive cesium over the wide area. We examined the possibility of applying magnetic separation method using the superconducting magnet, which can process a large amount of the soil in high speed, to the soil decontamination and volume reduction of the radioactive cesium contaminated soil.

get price

Enhanced selective separation of fine particles from Cs

2020-10-3  The use of magnetic separation under acidic conditions was found to be highly effective for soil decontamination through the selective removal of fine clay particles without additional treatment. Therefore, the proposed magnetic-sieving separation using MNPs may be a viable option for removing fine particles from contaminated soil in the

get price

Magnetic separation for environmental remediation

1994-11-1  Magnetic Separation is a physical separation process that segregates materials in a mixture on the basis of magnetic susceptibility. Most of the actinides and their compounds and fission products are paramagnetic, and most host materials such as water, graphite, soil, and sand are diamagnetic.

get price

Study on Decontamination of Radioactive Cesium From

2013-4-2  The decontamination of radioactive substances in the soils and the wreckage, and the volume reduction of contaminated waste are urgent issues. In this study, we examined the possibility for the soil decontamination of Cs-137, the main radioactive species with longer half-life, by means of the magnetic separation with a high-temperature

get price

Magnetic separation for soil decontamination (Conference

1993-1-1  OSTI.GOV Conference: Magnetic separation for soil decontamination. Magnetic separation for soil decontamination. Full Record; Other Related Research

get price

Study on Decontamination of Radioactive Cesium From

2013-4-2  The decontamination of radioactive substances in the soils and the wreckage, and the volume reduction of contaminated waste are urgent issues. In this study, we examined the possibility for the soil decontamination of Cs-137, the main radioactive species with longer half-life, by means of the magnetic separation with a high-temperature

get price

Study on magnetic separation for decontamination of

The accident of Fukushima Daiichi nuclear power plant caused the diffusion of radioactive cesium over the wide area. We examined the possibility of applying magnetic separation method using the superconducting magnet, which can process a large amount of the soil in high speed, to the soil decontamination and volume reduction of the radioactive cesium contaminated soil.

get price

Decontamination of Cesium From Contaminated Water

2016-2-18  Decontamination of Cesium From Contaminated Water Using a Selective Adsorbent and Magnetic Separation Common environmental technologies for water and soil could not be used for the cesium-contaminated environment due to several reasons. The radioactive cesium exists as in a trace amount and with other common cations such as calcium and sodium.

get price

Phenanthrene Removal from Soil Slurries with Surfactant

The technique is based on first transferring the sorbed phenanthrene from the soil to anionic surfactant-coated oxide particles, and then separating these anionic surfactant-coated oxide particles with the sorbed phenanthrene from the soil slurry via a magnetic separation technique. The decontamination of two soils with different particle sizes

get price

Water purification using magnetic assistance: A review

2010-8-15  High-gradient magnetic separation (HGMS) is a commonly used term in magnetic separations,,,,,,,,,,,, .An HGMS device comprises of a bed of magnetically susceptible wires placed inside an electromagnet, as shown in Fig. 1.When a magnetic field is applied across the column, the wires dehomogenize the magnetic field in the column, producing large field gradients around the

get price

Magnetic biochar for environmental remediation: A review

2020-2-1  Magnetic biochar is also effective for the removal of pollutants from aqueous solution. This review comprises a systematic analysis of 109 papers published in recent years (From 2011 to June 2019), and summarises the synthetic methods and raw materials required for magnetic

get price

Soil and groundwater cleanup: benefits and limits of

2010-12-14  Contaminated soil and groundwater have been the subject of study and research, so that the field of remediation has grown and evolved, continually developing and adopting new technologies in attempts to improve the decontamination. The cleanup of environmental pollution involves a variety of techniques, ranging from simple biological processes to advanced engineering technologies. Cleanup

get price

Remediation of heavy metal-contaminated soils by

2021-2-1  1. Introduction. Soil contaminated by heavy metals has been regarded as one of humanity’s most concerning ecological problems. The entry of heavy metals into soil is sourced from geogenic origins and anthropogenic activities, such as mining, smelting, fossil fuel consumption, industrial discharge, waste disposal and agricultural irrigation, which introduce major metal enrichment in soil.

get price

Trivalent chromium removal from tannery wastewater with

In a pilot scale separation device, the removal efficiency of bare magnetic Fe 3 O 4 nanoparticles for high concentration chromium containing wastewater treatment is shown in Fig. 10. It can be seen from Fig. 10 that when 150 L of wastewater is fed into the magnetic separator at a flow rate of 18 L/h, the primary treatment can ensure that the

get price

Study on magnetic separation for decontamination of

The accident of Fukushima Daiichi nuclear power plant caused the diffusion of radioactive cesium over the wide area. We examined the possibility of applying magnetic separation method using the superconducting magnet, which can process a large amount of the soil in high speed, to the soil decontamination and volume reduction of the radioactive cesium contaminated soil.

get price

Application of polyethylenimine-coated magnetic

2020-6-8  The separation of Cs-enriched fine particles is a highly effective way to reduce the volume and radioactivity of contaminated soil. This work demonstrated the application of polyethylenimine (PEI)-coated Fe 3 O 4 nanocomposites and a mesh filter for the selective separation of clay particles from Cs-contaminated soil. The PEI coating on the Fe 3 O 4 nanoparticles enhanced the binding force

get price

High-Gradient Magnetic Separation (HGMS) Plays an

1996-11-5  In studies involving soil remediation, we are developing and testing HGMS as part of an integrated system with LESAT's soil- washing and gravity-based separation equipment. The goal is to replace an expensive chemical leach-unit operation with magnetic separation for treatment of the fine-particle-size fraction.

get price

Decontamination of Cesium From Contaminated Water

2016-2-18  Decontamination of Cesium From Contaminated Water Using a Selective Adsorbent and Magnetic Separation Common environmental technologies for water and soil could not be used for the cesium-contaminated environment due to several reasons. The radioactive cesium exists as in a trace amount and with other common cations such as calcium and sodium.

get price

Voulme Reduction o Cfuesim Conatmniaedt Soils by

2021-2-8  Fukushima. The soil can be separated into the low-dose and high-dose portions by separation of 2:1 clay. The low-dose soil after the separation achieved the clearance level or the dose that can be used for road materials with 30 cm cover soil, which shows the feasibility of effective volume reduction.

get price

Researchers develop technique to magnetically separate

"The newly-developed soil decontamination technique can be easily commercialized as it uses low-energy magnetic separation technology," KAERI researcher Kim Il-kook was quoted as saying. "We will be able to use this method to decontaminate soil from

get price

Magnetically Separable Water Treatment Technologies

2013-4-4  Magnetic separation has been recognized as an important property for the simple deployment of micro and sub-microparticles into solution in the field of water treatment. Many materials with desirable properties for water decontamination are hindered due to the difficulty inherent in removing them from solution post-treatment.

get price

Magnetic Techniques for the Treatment of Materials

2007-12-5  5.1 Selection of magnetic separation technique 320 5.2 Dry magnetic separation 321 5.2.1 Electrostatic phenomena in dry separation 323 6.2.3 Soil decontamination 511 6.3 Waste water treatment 514 6.3.1 Steel industry 514 6.3.2 Thermal power plants 517 6.4 Magnetic

get price

Magnetic biochar for environmental remediation: A review

2020-2-1  Magnetic biochar is also effective for the removal of pollutants from aqueous solution. This review comprises a systematic analysis of 109 papers published in recent years (From 2011 to June 2019), and summarises the synthetic methods and raw materials required for magnetic

get price

Zirconium decontamination factor test on DGA and Sr

2018-11-23  Therefore, it needs for an efficient chemical separation procedure to achieve Zr decontamination factor of ~ 2.5 × 10 10 for a reliable 90 Sr analysis in soil samples. According to earlier reports on DGA resin, Zr-along with rare earth elements—showed a high affinity for DGA resin either in HNO 3 or in HCl media while Sr was not retained

get price