Comparative study of certain ion-exchange resins for application in copper-bearing process solutions

Raghavan, R.; Bhatt, Chandni

doi:10.1016/s0304-386x(98)00043-7

Cited by 15 publications

(4 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The batch experiments were conducted according to the following procedure: about 0.5 g of appropriate dry ion exchanger was placed in a 100 cm 3 stoppered conical flask containing 50 cm 3 of Cu(II) complexes of an initial concentration c 0 . The flask was shaken using the laboratory shaker of ELPHINE type 357 produced in Poland.…”

Section: The Static Methodsmentioning

confidence: 99%

“…Anionic complexes of heavy metal ions with complexing agents can be eliminated by means of anion exchangers. Recent studies have also shown that chelating resins could be used for selective removal and recovery of metals in the presence of strong organic ligands [1][2][3][4]. Therefore, the aim of this paper was to examine the removal of Cu(II) ions in the presence of EDTA on the chelating ion exchangers of different types.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

FT-IR/PAS Studies of Cu(II)-EDTA Complexes Sorption οn the Chelating Ion Exchangers

2009

View full text Add to dashboard Cite

The possibility of removal of copper(II) complexes with ethylenediaminetetraacetic acid (EDTA) from waters and wastewaters by the chelating ion exchangers Lewatit TP 214, Lewatit TP 260 and Diaion CR-20 as well as the mechanism of their sorption onto them were investigated. In order to describe the sorption process of Cu(II) ions in the presence of EDTA, the FT-IR/PA spectra of the abovementioned chelating ion exchangers were recorded.

show abstract

Section: The Static Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

FT-IR/PAS Studies of Cu(II)-EDTA Complexes Sorption οn the Chelating Ion Exchangers

2009

View full text Add to dashboard Cite

show abstract

“…Industrial processes tend to focus on extraction from industrial solutions of strong acid media (e.g. HCl, H 2 SO 4 and HNO 3 ) [24][25][26][27][28][29] . This paper will focus on the extraction of problematic heavy metals (zinc, lead and copper) from buffering regions of weak organic acids utilising ion exchange resins.…”

Section: Introductionmentioning

confidence: 99%

Extraction of Heavy Metals from Simulant Citrate Leachate of Sewage Sludge by Ion Exchange

Bezzina

Amphlett

Ogden

2018

J.I.E.

View full text Add to dashboard Cite

A shortage of natural resources has led to a focus towards the use of sewage sludge as a fertiliser source due to its high phosphate content. One of the main issues with the use of sewage sludge as a fertiliser source is the concentration of heavy metals, particularly copper, lead and zinc. Economical alternatives to regular lixiviants (sulphuric acid, nitric acid, etc.) for the leaching of heavy metals from solids are weak complexing acids. Ion exchange technology offers an effective method for the recovery of these metals from the leachate. This study presents the pH dependence of Cu, Fe, Pb and Zn recovery from citrate media by the ion exchange resins TP214, MTS9100, MTS9570, MTS9301, MTS9501 and C107E. Copper recovery was found to be maximised by the use of either TP214 at a pH of 5 or MTS9301 at a pH of 2. The phosphonic acid functionality containing resins, MTS9570 and MTS9501 were found to be the most effective for the removal of iron at a pH of 2 and 5, respectively. TP214 and MTS9570 show promising results for the recovery of lead, with the caveat of large copper and iron recovery, respectively and MTS9301shows high affinity towards zinc at high pH, although poor separation from copper

show abstract

“…Although there are many possible methods which can be used to destroy and reduce the levels of EDTA, including treatment with activated sludge,2, 3 biological degradation,4–7 and photooxidation with ultraviolet radiation,8–12 the efficiency of many of these methods is reduced in the presence of heavy metal ions because of complex formation between the metal and the organic species. Similarly different methods have been used to remove or recover metals from effluent streams, these include methods such as chemical precipitation,13, 14 solvent extraction,15, 16 ion exchange,17, 18 cementation,19, 20 membrane separation,21, 22 liquid membrane separation,23 reverse osmosis24 and fluidised bed electrolysis 25. 26 However, there are practical limitations arising from failure to remove organic pollutants in using most of the methods.…”

Section: Introductionmentioning

confidence: 99%

Simultaneous recovery of heavy metals and degradation of organic species - copper and ethylenediaminetetra-acetic acid (EDTA)

Chaudhary

Donaldson

Grimes

et al. 2000

J. Chem. Technol. Biotechnol.

View full text Add to dashboard Cite

In mixed industrial ef¯uent the presence of metal ions can retard the destruction of organic contaminants and the ef®ciency of recovery of metal is reduced by the presence of the organic species. Results are presented for a copper±ethylenediaminetetra-acetic acid (EDTA) system in which both effects occur. An electrochemical cell alone can be used to recover copper in pH range 1.5±4.5 but is not capable of achieving complete mineralisation of EDTA by anodic oxidation. A photolytic cell alone can achieve the destruction of EDTA at pH 3.5 but leaves copper in solution. A combined photolytic± electrochemical system using an activated carbon concentrator cathode achieves the rapid simultaneous destruction of EDTA and recovery of copper.

show abstract

Comparative study of certain ion-exchange resins for application in copper-bearing process solutions

Cited by 15 publications

References 3 publications

FT-IR/PAS Studies of Cu(II)-EDTA Complexes Sorption οn the Chelating Ion Exchangers

FT-IR/PAS Studies of Cu(II)-EDTA Complexes Sorption οn the Chelating Ion Exchangers

Extraction of Heavy Metals from Simulant Citrate Leachate of Sewage Sludge by Ion Exchange

Simultaneous recovery of heavy metals and degradation of organic species - copper and ethylenediaminetetra-acetic acid (EDTA)

Contact Info

Product

Resources

About