Removal of fluoride ions from solution by chelating resin with imino-diacetate functionality
-
Add time:10/01/2019 Source:sciencedirect.com
We present the first reported study of imino-diacetate ion exchange resins which have been exchanged with aluminium ions which may offer an improved means of selectively removing fluoride ions from solution. Fluoride in water resources remains a significant problem worldwide often preventing or restricting beneficial use. This study undertook kinetics, equilibrium, and column tests to determine the effectiveness of Lanxess TP208 resin for fluoride removal over a range of solution fluoride concentrations and pH. Fluoride uptake was significantly influenced by both solution fluoride ion concentration and pH. Equilibrium studies suggested the maximum loading of fluoride ions was 1.3, 12.4, and 60.7 g F/kg resin for fluoride concentrations of ca. 10, 100 and 1000 mg/L, respectively at a solution pH of 6–7.5. Decreasing the solution pH to ca. 5.5 by addition of sulphuric acid resulted in a 27% increase in maximum fluoride loading to 15.7 g F/kg TP208 resin at a solution fluoride concentration of 100 mg/L. Significantly, the sorption process did not release chloride ions or any other detectable anions into solution. Sodium ions were removed from solution stoichiometrically with fluoride. Column studies confirmed the impact of fluoride concentration upon resin performance and suggested that multiple pathways may facilitate fluoride uptake. Future studies should focus on understanding whether imino-diacetate chelating resins exchanged with alternate metal (III) species (e.g. La, Ce, Fe) can effectively remove fluoride ions, the impact of competing ions on resin performance and how to regenerate sodium fluoride loaded resins.
We also recommend Trading Suppliers and Manufacturers of Sodium diacetate (cas 126-96-5). Pls Click Website Link as below: cas 126-96-5 suppliers
Prev:Effect of sodium citrate plus Sodium diacetate (cas 126-96-5) or buffered vinegar on quality attributes of enhanced beef top sirloins
Next:Control of Listeria monocytogenes on commercially-produced frankfurters prepared with and without potassium lactate and Sodium diacetate (cas 126-96-5) and surface treated with lauric arginate using the Sprayed Lethality in Container (SLIC®) delivery method☆) - 【Back】【Close 】【Print】【Add to favorite 】
- Related Information
- A comparison of sensory attribute profiles and liking between regular and sodium-reduced food products09/30/2019
- Homogeneous acylation of Cellulose diacetate: Towards bioplastics with tuneable thermal and water transport properties09/29/2019
- Control of Listeria monocytogenes on commercially-produced frankfurters prepared with and without potassium lactate and Sodium diacetate (cas 126-96-5) and surface treated with lauric arginate using the Sprayed Lethality in Container (SLIC®) delivery method☆09/28/2019
- Effect of sodium citrate plus Sodium diacetate (cas 126-96-5) or buffered vinegar on quality attributes of enhanced beef top sirloins09/27/2019
- Research NoteEnhanced inhibition of Listeria monocytogenes in Frankfurter sausage by the addition of potassium lactate and Sodium diacetate (cas 126-96-5) mixtures09/26/2019
- Sodium lactate, Sodium diacetate (cas 126-96-5) and pediocin: Effects and interactions on the thermal inactivation of Listeria monocytogenes on bologna☆09/25/2019
- Effects and interactions of sodium lactate, Sodium diacetate (cas 126-96-5), and pediocin on the thermal inactivation of starved Listeria monocytogenes on bologna☆09/24/2019
- Differential gene expression and filamentation of Listeria monocytogenes 08-5923 exposed to sodium lactate and Sodium diacetate (cas 126-96-5)09/10/2019
- Safety assessment of sodium acetate, Sodium diacetate (cas 126-96-5) and potassium sorbate food additives09/09/2019
-
Health and Chemical more >
-
Related Products
- Sodium 2,4-dimethylbenzenesulfonate
- SODIUM γ-FLUORO-β-HYDROXYBUTYRATE
- Sodium ((3-methoxy-1-methyl-3-oxo-1-propenyl)amino)phenylacetate
- Sodium (+)-10-camphorsulfonate
- Sodium (2-carbamoylphenoxy)acetate
- Sodium (2-methyl-4-chlorophenoxy)acetate
- Sodium (6R,7R)-3-[(5-methyl-1,3,4-thiadiazol-2-yl)sulfanylmethyl]-8-oxo-7-[[2-(tetrazol-1-yl)acetyl]amino]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate pentahydrate
- Sodium (C10-16)alkylbenzenesulfonate
- Sodium (R,R)-5-(2-((2-(3-chlorophenyl)-2-hydroxyethyl)amino)propyl)-1,3-benzodioxole-2,2-
- Sodium (S)-lactate