Comparison of Different Ion-Exchangers’ Performances for Removal of Cadmium(ll) from Aqueous Solution

2012 ◽  
Vol 550-553 ◽  
pp. 2205-2209
Author(s):  
Chun Bo Liang ◽  
Ming Yu Li ◽  
Qing Xuan Zeng
Keyword(s):  
Aqueous Solution ◽  
Ion Exchange ◽  
Ph Value ◽  
Ion Exchange Resins ◽  
Carboxylate Groups ◽  
Cation Exchangers ◽  
Value Range ◽  
Exchange Resins ◽  
Ion Exchange Fiber ◽  
Cationic Exchanger

In this paper, comparison of the ion-exchange characteristics of removal cadmium (Ⅱ) ions from aqueous solution was investigated. In the experiments, three strong cation-exchangers, 732 resin, K-1 fiber and ZB-1 fiber with sulfonate groups, weak cationic exchanger 724 resin with carboxylate groups and X-1 chelating fiber with diethylamino functional groups as well as the AK-22 amphoteric fiber with amino and carboxylate groups were used. In the pH value range from 2.0 to 7.0, all the candidate materials had the maximal removal Cd (Ⅱ) up to 98% except AK-22 (only 65%). The loading and eluting kinetics results showed that the exchange rate of ion-exchange fibers (especially ZB-1) were higher than ion-exchange resins. Therefore, it was found that ZB-1 ion-exchange fiber was the most effective for removal and elution of Cd (Ⅱ) and had the potential application for the purification of waters polluted by Cd (Ⅱ).

Effects of ion exchange resins in different mobile ion forms on semi-aerobic landfill leachate treatment

2010 ◽  
Vol 61 (3) ◽  
pp. 641-649 ◽  
Author(s):  
Mohammed J. K. Bashir ◽  
Hamidi Abdul Aziz ◽  
Mohd Suffian Yusoff ◽  
A. A. M. Huqe ◽  
Soraya Mohajeri
Keyword(s):  
Ion Exchange ◽  
Landfill Leachate ◽  
Oxygen Demand ◽  
Ammonia Nitrogen ◽  
Ion Exchange Resins ◽  
Leachate Treatment ◽  
Cationic Resin ◽  
Exchange Resins ◽  
Sodium Form ◽  
Cationic Exchanger

Landfill leachate is one of the major contamination sources. In this study, the ability of synthetic ion exchange resins which carry different mobile ion for removing color, chemical oxygen demand (COD), and ammonia nitrogen (NH3-N) from stabilized leachate was investigated. The synthetic resin INDION 225 Na as a cationic exchanger and INDION FFIP MB as an anionic exchanger were used in this study. INDION 225 Na was used in hydrogen form (H+) and in sodium form (Na+), while INDION FFIP MB resin was used in hydroxide form (OH−) and in calcium form (Cl−) form. The results indicated better removal of color, COD and NH3-N by using INDION 225 Na in H+ as compared with Na+ form, while no performance differences were observed by using INDION FFIP MB in OH− or Cl− form. Applying cationic resin followed by anionic resin achieved 97, 88 and 94, percent removal of color, COD and NH3-N. The residual amounts were 160 Pt-Co, 290 mg/L and 110 mg/L of color, COD and NH3-N respectively.

Removal of nitrate from aqueous solution by nitrate selective ion exchange resins

2006 ◽  
Vol 66 (11) ◽  
pp. 1206-1214 ◽  
Author(s):  
Saba Samatya ◽  
Nalan Kabay ◽  
Ümran Yüksel ◽  
Müşerref Arda ◽  
Mithat Yüksel
Keyword(s):  
Aqueous Solution ◽  
Ion Exchange ◽  
Ion Exchange Resins ◽  
Exchange Resins

Nitrate Selectivity of Ion-Exchange Resins and of Their Model Compounds. I. Conductance Measurements on Benzyltrialkylammonium Salts

1990 ◽  
Vol 43 (12) ◽  
pp. 1983
Author(s):  
BJ Steel ◽  
AS Kayaalp ◽  
T Kurucsev ◽  
AD Ward ◽  
MB Jackson
Keyword(s):  
Aqueous Solution ◽  
Ion Exchange ◽  
Concentration Dependence ◽  
Ion Pairing ◽  
Association Constants ◽  
Ion Exchange Resins ◽  
Methyl Ethyl ◽  
Model Compounds ◽  
Sulfate Salts ◽  
Exchange Resins

The concentration dependence of the conductance in aqueous solution of a series of benzyltrialkylammonium chlorides, nitrates and sulfates was measured. The n-alkyl substituents in this series were methyl, ethyl, propyl , butyl and pentyl. The conductances of the chlorides, nitrates and sulfates fit satisfactorily the electrostatic ion pairing models relevant to 1 : 1 and 1 : 2 electrolytes. The extent of ion pairing is small in all the solutions studied but consistently larger for nitrates and sulfates compared with chlorides. The dependence of the association constants on the alkyl substitutents shows different trends for the monovalent anions compared with the sulfate salts.

Separation of Itaconic Acid from Aqueous Solution onto Ion-Exchange Resins

2015 ◽  
Vol 61 (1) ◽  
pp. 430-437 ◽  
Author(s):  
Antonio Irineudo Magalhães ◽  
Júlio Cesar de Carvalho ◽  
Elia Natália Meza Ramírez ◽  
Jesus David Coral Medina ◽  
Carlos Ricardo Soccol
Keyword(s):  
Aqueous Solution ◽  
Ion Exchange ◽  
Itaconic Acid ◽  
Ion Exchange Resins ◽  
Exchange Resins
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