Removal of Cu2+ ions by a micro-flow electrodeionization (EDI) system

Arar, Özgür; Yüksel, Ümran; Kabay, Nalan; Yüksel, Mithat

doi:10.1016/j.desal.2011.04.044

Cited by 61 publications

(19 citation statements)

References 19 publications

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“…- [14] and heavy metals such as Ni 2+ [15,16], Cr 6+ [17], and Cu 2+ [18]. It also produces highly pure water [9].…”

Section: Introductionmentioning

confidence: 99%

Removal of trace Cs(I), Sr(II), and Co(II) in aqueous solutions using continuous electrodeionization (CEDI)

Jiang¹,

Li²,

Zhao³

2019

Desalination and Water Treatment

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Nuclear power plants produce low-level radioactive wastewaters (LLRW) that contain radioactive nuclides. Prior to discharge, these radioactive nuclides need to be safely and efficiently removed. Continuous electrodeionization (CEDI) has shown potential for the treatment of LLRW. Here, we measured the performance of CEDI stacks on the removal of three different trace nuclides: Cs(I), Sr(II) and Co(II). Our results indicated that Cs(I) and Sr(II) actively migrated in the resin particles and were distributed in the resin profile according to the applied electric field. Nuclide removal was improved by increasing the working current. At a working current of 0.5 A, the removal efficiencies of Cs(I), Sr(II), and Co(II) amounted to 99.7%, 98.1%, and 77.1%, respectively. However, excessive working current resulted in the hydrolysis and formation of Co(OH) 2, which deposited on the surface of the cation exchange resin. The adsorption rate of Cs(I), Sr(II), and Co(II) for the resin was in the following order: Cs(I) > Sr(II) > Co(II). This order was also positively related to the removal efficiency of the CEDI stack. However, we found no significant relationship between resin adsorption capacity and CEDI removal efficiency.

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“…- [14] and heavy metals such as Ni 2+ [15,16], Cr 6+ [17], and Cu 2+ [18]. It also produces highly pure water [9].…”

Section: Introductionmentioning

confidence: 99%

Removal of trace Cs(I), Sr(II), and Co(II) in aqueous solutions using continuous electrodeionization (CEDI)

Jiang¹,

Li²,

Zhao³

2019

Desalination and Water Treatment

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“…Generally, the optimum value of the applied current should be 80-85% of LC in constant-current mode operation of ED. 70,71 In contrast, EDI does not have an obvious LC point. 72 There is no polarization point (i.e., LC point) for EDI operation according to the voltage-current curve.…”

Section: Limiting Current (Lc)mentioning

confidence: 96%

Electrokinetic desalination of brackish water and associated challenges in the water and energy nexus

Pan

Snyder

Lin

et al. 2018

Environ. Sci.: Water Res. Technol.

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“…Deionization processes such as electrodeionization (Arar et al, 2011(Arar et al, , 2014a, reverse osmosis (Arar et al, 2014a) and electrodialysis (Rodrigues et al, 2008;Tzanetakis et al, 2003) are some major alternatives. The separation principle, the advantages and disadvantages can be considered as follows.…”

Section: Introductionmentioning

confidence: 99%

“…The electrodeionization method is a combination between electrodialysis and ion exchange methods (Arar et al, 2011(Arar et al, , 2014b. This method has already been applied for the removal of Cu 2+ , Ni 2+ and Cr 6+ ions from the dilute solutions (Dzyazko, 2006;Dzyazko et al, 2008;Spoor et al, 2002;Mahmoud et al, 2007;Feng et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

San copolymer membranes with ion exchangers for Cu(II) removal from synthetic wastewater by electrodialysis

Căprărescu

Corobea

Purcar

et al. 2015

Journal of Environmental Sciences

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Removal of Cu2+ ions by a micro-flow electrodeionization (EDI) system

Cited by 61 publications

References 19 publications

Removal of trace Cs(I), Sr(II), and Co(II) in aqueous solutions using continuous electrodeionization (CEDI)

Removal of trace Cs(I), Sr(II), and Co(II) in aqueous solutions using continuous electrodeionization (CEDI)

Electrokinetic desalination of brackish water and associated challenges in the water and energy nexus

San copolymer membranes with ion exchangers for Cu(II) removal from synthetic wastewater by electrodialysis

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