Uranium Removal By Ion Exchange Process Using Mno

ما

Uranium Removal By Ion Exchange Process Using Mno

Elimination of radionuclide uranium (VI) from aqueous solutions using

Request PDF | Elimination of radionuclide uranium (VI) from aqueous solutions using an α-MnO@CTS composite adsorbent | To effectively treat the contamination caused by radionuclide uranium (VI ...

ادامه مطلب

Nitrate Removal by Ion Exchange

The chloride (Cl) ion of the salt molecule is utilized by the anion exchange site, the sodium (Na) ion passes right through the resin bed and does not affect the process. Operational Guidelines The anion …

ادامه مطلب

Efficient removal of uranium from wastewater using …

As a result, the removal and recovery of uranium from wastewater is required in terms of both resource recovery and contaminant treatment necessitate. To date, various uranium removal methods have been developed, including extraction, co-precipitation, ion exchange, membrane separation, and adsorption . Among these, …

ادامه مطلب

Adsorption behavior of trace elements of 90Sr on …

The composite of ion exchangers (MnO 2 –ZrO 2) with polyacrylonitrile (MnO 2 –ZrO 2-PAN) was produced by dissolving the MnO 2 –ZrO 2 powder in dimethyl sulfoxide (DMSO) which involved 4% (w ...

ادامه مطلب

Enhanced uranium extraction using a nanostructured …

It shows an enhanced uranium extraction of 443.2 mg g −1 under 1 Sun irradiation. • It exhibits a very high evaporation rate of 3.75 kg m −2 h −1 under 1 Sun …

ادامه مطلب

Secondary metal ion-induced electrochemical reduction of …

Herein, we report a general secondary metal ion-induced strategy for electrocatalytic reducing aqueous uranyl ions to UO 2 or bimetallic M x (M = Ce, Eu, Th, …

ادامه مطلب

Rapid removal of uranium(Ⅵ) using functionalized luffa rattan biochar

These characteristics made BCL/PPy-3 competitive for enhanced hexavalent uranium ion electrosorption. These features were highly conducive to fast electron transfer and better diffusion of hexavalent uranium ions during the CDI process. The exposed S atoms in BCL/PPy-3 showed good coordination and complexing power for hexavalent …

ادامه مطلب

Removal of uranium using MnO2/orange peel biochar composite prepared …

Orange peel is an important resource in view of its low-cost and universal nature. A novel material (MnO 2 /orange peel carbon, MnO 2 /OPC) was yielded via a single step involving activation and in situ deposit. The feasibility of uranium removal using MnO 2 /OPC was tested by varying MnO 2 loading amount, pH, ionic strength, …

ادامه مطلب

Enhanced uranium separation by charge enabling γ-MnO

The product was sonicated, washed, and dried for further use. CC/γ–MnO 2 is assembled into a Zn–MnO 2 cathode electrode, and the charge–discharge cycle is performed to obtain CC/γ–MnO 2 –OVs. The experimental process and formation mechanism are shown in Fig. S1-S3 (Supporting Information). 2.4. Synthesis of CC/γ …

ادامه مطلب

High Efficiency Uranium(VI) Removal from Wastewater by …

The results reveal that the ion exchange process of ion exchange fibers is monolayer adsorption. In the Freundlich model, when the adsorption process was difficult, the equilibrium constant n is smaller than 0.5, and when the adsorption was easy to perform, the constant n was in the range of 2–10 . The result, that equilibrium constant …

ادامه مطلب

[PDF] REMOVAL OF URANIUM FROM MINE WATER USING …

REMOVAL OF URANIUM FROM MINE WATER USING ION EXCHANGE AT DRIEFONTEIN MINE. Mine waters from gold and sometimes coal mining contain low …

ادامه مطلب

Kinetic, isotherm, and thermodynamic investigations of uranium …

AbstractIn this study, an amidoximated chelating ion-exchange resin was prepared using poly-acrylonitrile grafted potato starch. The resin characterizations such as specific surface area, pore volume, average pore radius, and Fourier transform infrared spectroscopy of the resin were defined. The effects of pH, contact time, adsorbent …

ادامه مطلب

Removal of chloride ions from a copper leaching solution, using …

For this reason, uranium must be extracted from the copper PLS using anion-exchange resins. The ion-exchange process used to extract uranium from the leaching solution was based on the high binding of the sulphate anion complexes to uranium, to the anion-exchange resin (Rosenberg et al., 2016). The ion-exchange …

ادامه مطلب

Uranium Mining and Extraction from Ore

Uranium leaching is the process by which the uranium is extracted from the raw ore by reacting the material with acid or base. Fig. 2 shows a general process flow for the uranium extraction process. Prior to the …

ادامه مطلب

Uranium (VI) Recovery from Black Shale Leaching Solutions Using Ion …

This work studies the removal of uranium ions from chemically leached solutions by sorption using two weak and two strong base anionites. Batch sorption experiments were performed to evaluate the ...

ادامه مطلب

Electrochemical Techniques for Uranium Extraction from …

in a much more challenging matrix. Primary concerns are centered around the removal capacity and kinetics, selectivity, energy efficiency, device regeneration and production …

ادامه مطلب

Uranium Remediation by Ion Exchange and Sorption …

The solid phase materials or sorbents applied to the removal of uranium from industrial waste streams and surface waters are reviewed. The speciation of the element in the environment is discussed. A series of examples on uranium remediation from the recent literature using the different kinds of solid phase sorbents are reviewed in detail and …

ادامه مطلب

3D/2D MnO/MXene heterostructure with high efficiency for adsorbing uranium

An innovative MnO/Ti 3 C 2 MXene heterostructure, consisting of three-dimensional (3D) MnO nanosheet array directly assembled on two-dimensional (2D) Ti 3 C 2 MXene nanosheets, was synthesized via a simple hydrothermal-annealing strategy for uranium elimination. This unique 3D/2D heterostructure derived substantially high …

ادامه مطلب

Radioactive Strontium Removal from Seawater by a MOF via Two-Step Ion

Radioactive waste, such as 90 Sr, 134 Cs, and 131 I, from the Fukushima nuclear spill highlighted the need to find effective adsorbents for scrubbing radioactive ions from seawater. In this issue of Chem, Wang and colleagues report a remarkably 90 Sr-selective metal-organic framework (SZ-4) that operates with a two-step ion-exchange …

ادامه مطلب

Insights on uranium removal by ion exchange columns: The …

Therefore, the separation of U(VI) ions from aqueous solutions using ion-exchange resins is an active research topic, and results related to removing U(VI) from …

ادامه مطلب

Removal of Uranium from Mine Water Using Ion …

The water then proceeds to the uranium ion exchange section. The ion exchange configuration is shown in figure 8. There are two lead columns, one in operation and one …

ادامه مطلب

Fundamentals of Radium and Uranium Removal from Drinking Water Supplies

Ion exchange (IX) is an attractive approach to extract uranium from wastewater, simultaneously reducing the negative environmental impact of uranium …

ادامه مطلب

Uranium separation from acid mine drainage using anionic …

The process of the uranium sorption involves preferentially the interaction of the neutral [UO 2 SO 4 (H 2 O) 4] species, which accounts of 80% of the uranium …

ادامه مطلب

Lithium recovery from desalination brines using specific ion-exchange …

Lithium recovery from desalination brines using specific ion-exchange resins. ... Separation and recovery of lithium from geothermal water by sequential adsorption process with λ-MnO 2 and TiO2. Ion Exch. Lett., 5 (2012), ... Removal of lignin and tannin colour from aqueous solution by adsorption onto activated charcoal.

ادامه مطلب

Uranium in Poland: Resources and Recovery from Low …

The presented studies deal with an assessment of the possibility of uranium recovery from the low-grade uranium resources in Poland. Uranium was leached from the ground uranium ores with efficiencies in 81– range that depend on the type of ore and leaching solution used. In the next step, the post-leaching solution was treated by …

ادامه مطلب

Uranium Removal by Ion Exchange

The removal of uranium from water supplies using chloride form anion resins. ← Choosing the perfect softening resin → The Practical Aspects of Ion Exchange in the Service DI Industry (Part 1 and 2)

ادامه مطلب

SOHIO process legacy waste treatment: Uranium recovery using ion exchange

The feasibility of employing ion-exchange resins for the selective removal of uranium from a complex waste effluent has been investigated. The source of the effluent is a treatment process to reduce the volume of a spent uranium containing catalyst prior to its immobilisation and disposal in South Korea.

ادامه مطلب

Ion Exchange in Hydrometallurgical Processing: An …

Ion exchange has traditionally been employed for the purification of water and the removal of metal contaminants from dilute waste streams. More recently, its use in removing trace metallic impurities from hydrometallurgical process streams (with typical background metal concentrations of 50–100 g/L) has increased substantially.

ادامه مطلب

Separation of uranium from iron in ground water samples using ion …

Uranium determination in environmental samples is faced with problems due to presence of iron and other major elements. Iron is also used many a times for pre-concentration of uranium and actinides. Separation of milligram quantity of Fe from microgram quantity of uranium becomes essential during the estimation step. A simple …

ادامه مطلب

Recovery of uranium from phosphoric acid solutions using chelating ion

Several novel processes have been developed for the recovery of uranium from wet-process phosphoric acid. Experimental measurements have been made on the batch extraction of uranium from phosphoric acid solutions using various chelating ion-exchange resins (RSPO, Diaion-CRP200, Diphonix, Purolite S940, Duolite ES467, and …

ادامه مطلب