Metal ion recovery from electrodialysis-concentrated plating wastewater via pilot-scale sequential electrowinning/chemical precipitation

Kim, Joohyun; Yoon, Sangho; Choi, Min-Hee; Min, Kyung Jin; Park, Ki Young; Chon, Kangmin; Bae, Sungjun

doi:10.1016/j.jclepro.2021.129879

Cited by 47 publications

(11 citation statements)

References 38 publications

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“…At an applied potential of 8 V (2 V per cell pair) it is possible to reduce the concentration of all ions of the initial effluent until 20 % of its initial value at 240 min of operation time without observing noticeable mass transfer limitations or membrane fouling. It is worth noting that this value of voltage is considerably lower than similar previous works, where applied voltages up to 13 V per cell pair were applied (35).…”

Section: Treatment Of Amd By Electrodialysismentioning

confidence: 66%

“…Specifically, the final concentration of iron in this test is 0.344 (ratio with respect to its initial concentration) meanwhile the rest of metal ions reached an average final concentration ratio of 0.247. The mobility of metal ions through ion exchange membranes mainly depends on the size, charge and speciation of the metals under consideration (35). In this work, all metals presented similar sizes because their atomic number ranging from 25 and 48.…”

Section: Treatment Of Amd By Electrodialysismentioning

confidence: 77%

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Coupling of electrodialysis and bio‐electrochemical systems for metal and energy recovery from acid mine drainage

Delgado

Llanos

Fernández-Morales

2023

J of Chemical Tech & Biotech

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BACKGROUND: This work study the treatment of a synthetic sphalerite acid mine drainage (AMD). The treatment was carried out by means of a previous concentration stage, by using electrodialysis, and a subsequent electrodeposition by using bioelectrochemical system (BES).RESULTS: Operating the electrodialysis at 8V and at a diluate/concentrate volume ratio of 3 the best concentration results were obtained. This treatment yielded a concentrate fraction of about 25% of the volume and a clear fraction of about 75% of the volume.The concentrated fraction was treated in a BES to electrodeposite the metal contained.Operating as microbial fuel cell (MFC), the spontaneous reactions took place and in 2 days all the Fe 3+ was reduced to Fe 2+ , then all the Cu 2+ was electrodeposited as pure Cu 0 in about 8 d. The maximum current density attained in this stage was 0.1 mA cm −2 and the maximum power was 0.05 W cm −2 . Then, a subsequent operation as microbial electrolysis cell (MEC) allowed to simultaneously recover the Fe 2+ , Ni 2+ , Zn 2+ , Mn 2+ and Cd 2+ as a mixed metal mass. CONCLUSION:The electrodialysis yielded a clear effluent representing 75% of the total volume and a concentrated effluent accounting for 25%. It was possible to treat the concentrated effluent in a MFC recovering pure Cu 0 with a net electricity generation. The non-spontaneous metal reductions were subsequently accomplished by means of MEC, being the electricity requirements lower than in the case of the raw AMD because of the higher mass transfer rate and the reduction of the Ohmic loses.

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Section: Treatment Of Amd By Electrodialysismentioning

confidence: 66%

Section: Treatment Of Amd By Electrodialysismentioning

confidence: 77%

Coupling of electrodialysis and bio‐electrochemical systems for metal and energy recovery from acid mine drainage

Delgado

Llanos

Fernández-Morales

2023

J of Chemical Tech & Biotech

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“…The most commonly used methods for removing Fe impurity ions are chemical precipitation, solvent extraction, and ion exchange [16][17][18]. Lzadi [19] et al added hydroxide and jarosite to an electrolyte solution for the electrowinning of copper to reduce the concentration of Fe ions.…”

Section: Introductionmentioning

confidence: 99%

Removal of Fe Impurity Ions from a Spent Vanadium Electrolyte Using Capacitive Deionization Based on Resin/Activated Carbon Composite Electrodes

et al. 2023

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Capacitive deionization (CDI) based on LSC-957 resin/carbon composite electrodes was used to remove Fe impurity ions from a spent vanadium electrolyte, which enabled simple and efficient regeneration of the electrolyte. The experiments conducted in this study demonstrated that 3:1 was the optimal mass ratio of LSC-957 resin to activated carbon for the preparation of the composite electrodes, and the optimal operating voltage and operating time were 0.9 V and 6 h, respectively. After five stages of CDI tandem treatment, the adsorption rate of Fe impurity ions was 86.84% and the loss rate of V was only 3.8%. The energy efficiency of the regenerated electrolyte was 84.49%, and its performance was significantly improved compared to the spent vanadium electrolyte. The adsorption process of composite electrodes was analyzed by kinetic and isothermal models’ fit, SEM-EDS, and FTIR. This work has provided an effective and novel method for removing impurity ions from a spent electrolyte.

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“…Novel processes beyond current practice are thus needed for the challenge of concentrating PAIWW 12 . In addition to volume reduction, the transition to circular and cleaner production in the chemical industry demands the recovery of resources from waste streams [13][14][15][16][17][18][19] .…”

Section: Introductionmentioning

confidence: 99%

“…12 In addition to volume reduction, the transition to circular and cleaner production in the chemical industry demands the recovery of resources from waste streams. Examples are boron and lithium from geothermal waters, 13 phosphate from the electronic industry, 14 plating rinse, 15,16 palladium from wastewater, 17,18 and lithium from batteries. 19 Studies on PAIWW treatment are scarce, despite its great volume and impact.…”

Section: ■ Introductionmentioning

confidence: 99%

Circular Process for Phosphoric Acid Plant Wastewater Facilitated by Selective Electrodialysis

Monat

Zhang

Jarošíková

et al. 2022

ACS Sustainable Chem. Eng.

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Phosphoric acid production generates large volumes of industrial wastewater that cannot be treated efficiently by existing processes because of its low pH and high precipitation potential. At present, the wastewater is generally stored in evaporation ponds that are prone to breaches, leakage, and flooding.We developed an alternative three-step process for the treatment of phosphoric acid wastewater including selective electrodialysis, reverse osmosis, and neutralization. Testing the process with synthetic wastewater yielded promising results. An exceptional Na/Ca selectivity (up to 18.3 was observed in low-pH electrodialysis, enabling the separation of concentrated H2SO4 without gypsum scaling. Sulfate removal from the electrodialysis diluate prevented scaling in the subsequent highrecovery (>90%) reverse osmosis step, generating high-quality water. A final reaction between the reverse osmosis concentrate and natural phosphate rock enabled P recovery and neutralization of remaining acidity. The electric-power requirement of the process was estimated to be 4.4 kWh per m 3 of wastewater, from which 0.78 m 3 of clean water, ~3 kg H2SO4, and ~2.5 kg P were recovered. Overall, lab-scale results indicate that this process would be a sustainable and techno-economically viable solution for the treatment of hazardous wastewater byproducts of the phosphoric acid industry.

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Metal ion recovery from electrodialysis-concentrated plating wastewater via pilot-scale sequential electrowinning/chemical precipitation

Cited by 47 publications

References 38 publications

Coupling of electrodialysis and bio‐electrochemical systems for metal and energy recovery from acid mine drainage

Coupling of electrodialysis and bio‐electrochemical systems for metal and energy recovery from acid mine drainage

Removal of Fe Impurity Ions from a Spent Vanadium Electrolyte Using Capacitive Deionization Based on Resin/Activated Carbon Composite Electrodes

Circular Process for Phosphoric Acid Plant Wastewater Facilitated by Selective Electrodialysis

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