Green synthesis of nanoscale anion exchange resin for sustainable water purification

2018 ◽  
Vol 4 (10) ◽  
pp. 1685-1694 ◽  
Author(s):  
Abhispa Sahu ◽  
Kayla Blackburn ◽  
Kayla Durkin ◽  
Tim B. Eldred ◽  
Billy R. Johnson ◽  
...  
Keyword(s):  
Thin Film ◽  
Ion Exchange ◽  
Green Synthesis ◽  
Anion Exchange ◽  
Water Purification ◽  
Exchange Resin ◽  
Anion Exchange Resin ◽  
Ion Exchange Membrane ◽  
Exchange Membrane ◽  
Persistent Contaminants

A new water purification ion exchange membrane has been synthesized using an all-aqueous and sustainable process. These thin film membranes exhibit a pin hole free, mesoporous architecture that rapidly removes several classes of pervasive and persistent contaminants from water.

scholarly journals Boron Removal from Aqueous Solutions by Strong Base Anion-exchange Resin Batch and Column Experiments

2021 ◽  
Author(s):  
György Pátzay ◽  
József Dobor ◽  
Emil Csonka ◽  
Gábor Lozsi ◽  
Ferenc Feil
Keyword(s):  
Ion Exchange ◽  
Acid Solution ◽  
Boric Acid ◽  
Anion Exchange ◽  
Exchange Resin ◽  
Anion Exchange Resin ◽  
Free Water ◽  
Sulfate Solution ◽  
Boric Acid Solution ◽  
Strong Base

Borate ion exchange capacity of Purolite NRW600 strong base anion resin in hydroxide form and mixed bed NRW600+NRW100 ion exchange was investigated with static experiments. Anion exchange resin was saturated with 0.1–45 g/dm3 concentration boric acid solution in a static mixer at 20, 30, 40 and 50 °C at 150 rpm for 24 hours. Remaining borate content of saturation solutions was deter-mined with ion chromatography and ICP-OES. The amount of fixed borate as borate anions increased with the saturation borate concentration as well as in case of simple anion exchange as in case of mixed bed.Column sorption-elution study was carried out by using strong base anion exchange resins (Purolite NRW600 and Amberlite IRN78). Resins in hydroxide and in chloride forms were saturated in column with 5–40 g/dm3 boric acid solution in excess. The resin was then eluted with 200 cm3 salt free water with 5 cm3/min at 25 °C and then eluted by 1 mol/dm3 sodium-sulfate solution with 5 cm3/min. The effluent was collected and analyzed for borate content by titrimetric method. In chloride form the resin adsorbed and released much less borate. Effective borate and polyborate sorption needs hydroxide ions in resin phase.

Separation of Manganese, Cobalt, Copper, Zinc, and Magnesium By Using an Anion Exchange Resin

1967 ◽  
Vol 50 (4) ◽  
pp. 783-786
Author(s):  
Eugene A Breatjlt
Keyword(s):  
Ion Exchange ◽  
Anion Exchange ◽  
Exchange Resin ◽  
Anion Exchange Resin ◽  
Ion Exchange Resin ◽  
Acid Solutions ◽  
Resin Column ◽  
Hydrochloric Acid Solutions ◽  
Copper Zinc ◽  
Resin Separation

Abstract The metals Mn, Mg, Co, Cu, and Zn were separated by using an anion exchange resin column and progressively less concentrated IIC1 solution as eluting agent. The position of Mg on an anion exchange resin, not previously reported in the literature, was determined. It has been shown that by using two different ion exchange resin columns, simple hydrochloric acid solutions as eluants, and polarographic or flame photometric determinations, 12 metals can be separately estimated in an aqueous solution containing about 100 /μg of each. It is recommended that the study of ion exchange resin separation of metals found in plants be continued.

scholarly journals Multifaceted ion exchange resin-supported hydrogen fluoride: a path to flow hydrofluorination

2019 ◽  
Vol 21 (9) ◽  
pp. 2224-2228 ◽  
Author(s):  
Zhichao Lu ◽  
Bhvandip S. Bajwa ◽  
Okoromoba E. Otome ◽  
Gerald B. Hammond ◽  
Bo Xu
Keyword(s):  
Ion Exchange ◽  
Anion Exchange ◽  
Hydrogen Fluoride ◽  
Exchange Resin ◽  
Anion Exchange Resin ◽  
Ion Exchange Resin ◽  
Anhydrous Hydrogen Fluoride

A solid anhydrous hydrogen fluoride equivalent was prepared by mixing HF gas with an inexpensive anion exchange resin (A26-HF, HF content 30% wt/wt).

Effects of pH and uranium concentration on the removal of uranium from drinking water by ion exchange

2000 ◽  
Vol 88 (12) ◽  
Author(s):  
K. Vaaramaa ◽  
Satu Pulli ◽  
Jukka Lehto
Keyword(s):  
Drinking Water ◽  
Ion Exchange ◽  
Anion Exchange ◽  
Exchange Resin ◽  
Uranium Concentration ◽  
Anion Exchange Resin ◽  
Column Experiments ◽  
Strong Base ◽  
Ph Values ◽  
Effects Of Ph

Effects of pH in the range of 5 to 8 and uranium concentration in the range of 0.02 mg/l to 25 mg/l on the removal of uranium with a strong base anion exchange resin (SBA) and a chelating aminophosphonate resin were studied. The results of the batch and column mode experiments clearly showed that the aminophosphonate resin was an efficient exchanger for the removal of uranium at pH values close to 5 and the SBA resin at higher pH values. In the column experiments, where altogether 2000 bed volumes of drinking water simulant were processed with these exchangers, the uptake of uranium was as high as 99.8% by the aminophosphonate resin at pH 5 and 99.7% by the SBA resin at pH 8.

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