Separation of metals from electroplating wastewater using electrodialysis

Min, Kyung Jin; Choi, Sang Hyoun; Jang, Deokjin; Lee, Jongkeun; Park, Ki Young

doi:10.1080/15567036.2019.1568629

Cited by 30 publications

(9 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…High removals were achieved by ED from a real electroplating effluent containing Ni 2+ and Cu 2+ (~23 mg/L for both) [221]. A tertiary treatment line was developed for reclaiming a plating wastewater effluent with a mixture of heavy metal ions at low concentration (~1 mg/L) [222].…”

Section: Mixtures and Other Heavy Metal Ionsmentioning

confidence: 99%

Electrodialysis Applications in Wastewater Treatment for Environmental Protection and Resources Recovery: A Systematic Review on Progress and Perspectives

et al. 2020

View full text Add to dashboard Cite

This paper presents a comprehensive review of studies on electrodialysis (ED) applications in wastewater treatment, outlining the current status and the future prospect. ED is a membrane process of separation under the action of an electric field, where ions are selectively transported across ion-exchange membranes. ED of both conventional or unconventional fashion has been tested to treat several waste or spent aqueous solutions, including effluents from various industrial processes, municipal wastewater or salt water treatment plants, and animal farms. Properties such as selectivity, high separation efficiency, and chemical-free treatment make ED methods adequate for desalination and other treatments with significant environmental benefits. ED technologies can be used in operations of concentration, dilution, desalination, regeneration, and valorisation to reclaim wastewater and recover water and/or other products, e.g., heavy metal ions, salts, acids/bases, nutrients, and organics, or electrical energy. Intense research activity has been directed towards developing enhanced or novel systems, showing that zero or minimal liquid discharge approaches can be techno-economically affordable and competitive. Despite few real plants having been installed, recent developments are opening new routes for the large-scale use of ED techniques in a plethora of treatment processes for wastewater.

show abstract

Section: Mixtures and Other Heavy Metal Ionsmentioning

confidence: 99%

Electrodialysis Applications in Wastewater Treatment for Environmental Protection and Resources Recovery: A Systematic Review on Progress and Perspectives

et al. 2020

View full text Add to dashboard Cite

show abstract

“…Min, Choi, Choi, Jang, Lee, and Park (2019) studied the recovery of Cu 2+ and Ni 2+ from electroplating wastewater by ED and reported the recovery of both metal ions at above 90% under the optimal applied voltage of 12 V, in 25 min. Hosseini et al (2019) studied the removal of chromium ions from water using an ED system and reported thatdoping CoFe 2 O 4 nanoparticles onto the membrane matrix at 4%wt, increased chromium ion removal efficiency over 40% compared with that of the unmodified membrane.…”

Section: Physical Treatmentmentioning

confidence: 99%

Hazardous wastes treatment technologies

Shih

et al. 2020

Water Environment Research

View full text Add to dashboard Cite

show abstract

“…Climate change and excessive use of water resources have caused water shortage. To solve this problem, research has been focused on practical solutions with regard to treatment and reuse of wastewater [1][2][3]. In particular, electrodialysis has been used as a technique for minimizing secondary environmental pollution problems and treating toxic substances such as heavy metals effectively.…”

Section: Introductionmentioning

confidence: 99%

“…In electrodialysis, when the LCD is exceeded, the electrical resistance of the diluate rapidly increases because of the depletion of ions in the boundary layer of the membrane surface. In this situation, the current efficiency decreases [2][3]. Thus, the LCD is one of the most important design parameters to determine the efficiency of plant operation.…”

Section: Introductionmentioning

confidence: 99%

“…Thus, the LCD is one of the most important design parameters to determine the efficiency of plant operation. Therefore, to treat wastewater efficiently using electrodialysis, it is important to study the dependence of the LCD on the operating parameters [2][3]16]. Most studies have focused on the use of electrodialysis as a seawater desalination process.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Flow velocity and cell pair number effect on current efficiency in plating wastewater treatment through electrodialysis

Min

Kim

et al. 2020

Environmental Engineering Research

Self Cite

View full text Add to dashboard Cite

Electrodialysis has been used for treating toxic substances such as heavy metals and minimizing secondary environmental pollution problems effectively. However, electrodialysis depends on the operating parameters as well as fluid dynamics and electrical properties. This study provides design elements for the treatment of heavy metal-containing wastewater by electrodialysis. We found that the limiting current density (LCD) is proportional but not completely linear to the diluate concentration over a threshold value. In contrast, it is linear to the linear flow velocity for the whole range. As the number of cell pairs increases, because linear flow velocity and LCD increase, the removal efficiency of heavy metals also increases. Therefore, for highly concentrated wastewater, increasing the linear flow velocity, the applied voltage, and the number of cell pairs can effectively improve removal efficiency. It was found that the current efficiency is as low as 17% when the removal efficiency of heavy metals exceeds 95%. Thus, it is necessary to select an operating range that optimizes the operating and initial investment costs for the effective removal of heavy metals using electrodialysis.

show abstract

Separation of metals from electroplating wastewater using electrodialysis

Cited by 30 publications

References 31 publications

Electrodialysis Applications in Wastewater Treatment for Environmental Protection and Resources Recovery: A Systematic Review on Progress and Perspectives

Electrodialysis Applications in Wastewater Treatment for Environmental Protection and Resources Recovery: A Systematic Review on Progress and Perspectives

Hazardous wastes treatment technologies

Flow velocity and cell pair number effect on current efficiency in plating wastewater treatment through electrodialysis

Contact Info

Product

Resources

About