Ligand-Enhanced Separation of Divalent Heavy Metals from Aqueous Solutions Using a Strong-Acid Ion-Exchange Resin

2003 ◽  
Vol 42 (9) ◽  
pp. 1948-1954 ◽  
Author(s):  
Ruey-Shin Juang ◽  
Yi-Chieh Wang
Keyword(s):  
Heavy Metals ◽  
Ion Exchange ◽  
Aqueous Solutions ◽  
Exchange Resin ◽  
Strong Acid ◽  
Ion Exchange Resin

The rapid removal of iodide from aqueous solutions using a silica-based ion-exchange resin

2019 ◽  
Vol 135 ◽  
pp. 52-57 ◽  
Author(s):  
Zhenxiong Ye ◽  
Lifeng Chen ◽  
Caocong Liu ◽  
Shunyan Ning ◽  
Xinpeng Wang ◽  
...  
Keyword(s):  
Ion Exchange ◽  
Aqueous Solutions ◽  
Exchange Resin ◽  
Ion Exchange Resin ◽  
Rapid Removal

Kinetics and equilibria of the hydration of propene over a strong acid ion exchange resin as catalyst

1984 ◽  
Vol 39 (3) ◽  
pp. 433-446 ◽  
Author(s):  
L. Petrus ◽  
R.W. De Roo ◽  
E.J. Stamhuis ◽  
G.E.H. Joosten
Keyword(s):  
Ion Exchange ◽  
Exchange Resin ◽  
Strong Acid ◽  
Ion Exchange Resin

scholarly journals Removal of lead, cadmium and copper ions from aqueous solutions by using ion exchange resin C 160

2016 ◽  
Vol 32 (4) ◽  
pp. 129-140 ◽  
Author(s):  
Agnieszka Bożęcka ◽  
Monika Orlof-Naturalna ◽  
Stanisława Sanak-Rydlewska
Keyword(s):  
Ion Exchange ◽  
Aqueous Solutions ◽  
Sorption Capacity ◽  
Exchange Resin ◽  
Copper Ions ◽  
Exchange Process ◽  
Cation Exchange Resin ◽  
Ion Exchange Resin ◽  
Adsorption Model ◽  
Ion Exchange Process

Abstract Industrial waste solutions may contain toxic Pb, Cu, Cd and other metal ions. These ions may also be components of leachates in landfills of ores. The toxicity of the ionic forms of these metals is high. For this reason the paper presents the results of studies on one of the methods to reduce their concentration in aqueous solutions. The article presents the results of studies on the removal of Pb2+, Cd2+ and Cu2+ ions from model aqueous solutions with synthetic ion exchange resin C 160 produced by Purolite. The investigated ion exchanger contains sulfonic acid groups (-SO3H) in its structure and is a strongly acidic cation-exchange resin. The range of the studied initial concentrations of the Pb2+, Cd2+ and Cu2+ ions in the solutions was from 6.25 mg/L to 109.39 mg/L. The results confirmed that the used ion exchange resin C160 efficiently removes the above-mentioned ions from the studied solutions. The highest degree of purification was achieved in lead solutions for the assumed range of concentrations and conditions of the ion exchange process. It reached 99.9%. In the case of other solutions, the ion exchange process occurs with lower efficiency, however it remains high and amounts to over 90% for all the ions. The results of research were interpreted on the basis of the Langmuir adsorption model. For each studied ion, sorption capacity of the ion exchange resin increases until the saturation and equilibrium state is reached. Based on the interpretation of the Langmuir equation coefficients, an indication can be made that the studied ion exchange resin has a major sorption capacity towards the copper ions. In their case, the highest value of constant qmax was obtained in the Langmuir isotherm. For Cu2+ ions it was 468.42 mg/g. For Pb2+ and Cd2+ ions, this parameter reached the values of 112.17 mg/g and 31.76 mg/g, respectively. Ion exchange resin C 160 shows the highest affinity for the Pb2+ ions. In this case, the achieved value of coefficient b is highest and equals 1.437 L/mg.

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