Study of the Process of Electro Evolution of Copper Ions from Waste Regeneration Solutions

Koliehova, Anastasiia; Trokhymenko, Ganna; Magas, Nataliya; Gomelya, Mykola; Трус, Інна

doi:10.12911/22998993/116351

Cited by 3 publications

(3 citation statements)

References 8 publications

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“…It is noteworthy to highlight specific studies that explore metal extraction alongside solution regeneration (Trokhymenko et al, 2020;Nester et al, 2020).…”

Section: Analysis Of Recent Research and Publicationsmentioning

confidence: 99%

Regenerating Etching Solutions for Circuit Boards while Extracting Copper

Nester,

Yakovyshyna,

Salamon

et al. 2024

J. Ecol. Eng.

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The examination of sludge derived from electroplating manufacturing, printed circuit board production, and paste-like residue from sludge collectors uncover elevated levels of chromium, nickel, copper, cadmium, and various metals. The considerable saturation of water in the region and diverse soil compositions complicate the identification of suitable waste disposal sites, specifically for electroplating byproducts, limiting available spaces and fostering conditions conducive to soil and water contamination by heavy metal ions. The retention of used etching solutions within industrial facilities contributes to environmental pollution, necessitating substantial expenditures for proper disposal at manufacturing sites. Industrial waste, notably from processes such as printed circuit board etching, represents a significant threat to water quality, encompassing various essential technological processes for the production of diverse electronic equipment serving both civilian and military purposes. This article aims to present research outcomes and conducted experiments geared towards developing eco-friendly equipment. Also, the research delves into specific procedures for obtaining concentrated copper precipitates during the regeneration of etching solutions, with the extraction process reducing the generation of waste in the form of a paste-like structure saturated with water on industrial premises. The treatment of wastewater from etching printed circuit boards can be achieved by establishing a closed production cycle for board manufacturing and extracting copper for industrial applications. Finally, the research strives to design equipment for regenerating used solutions with metal extraction in a form suitable for remelting, contributing as an element to environmental conservation. The results facilitate the establishment of a printed circuit board etching line that incorporates the reuse of spent etching solutions in the manufacturing process. For solution regeneration, it is recommended to utilize a regenerator with a titanium VT1-0 cathode. The outcomes of individual tests provide conditions for regenerating spent etching solutions and utilizing the extracted copper in the national economy.

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“…It is noteworthy to highlight specific studies that explore metal extraction alongside solution regeneration (Trokhymenko et al, 2020;Nester et al, 2020).…”

Section: Analysis Of Recent Research and Publicationsmentioning

confidence: 99%

Regenerating Etching Solutions for Circuit Boards while Extracting Copper

Nester,

Yakovyshyna,

Salamon

et al. 2024

J. Ecol. Eng.

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“…Electrochemical methods allow one to extract valuable components from effluents with a relatively simple automated technological scheme of treatment, often without the use of chemical reagents. The main disadvantage of these methods is the high cost of electricity [32][33][34][35][36][37][38][39][40][41][42].…”

Section: Analysis Of Previous Studiesmentioning

confidence: 99%

Optimization of dose calculation of modified magnetite during sorption purification of water from copper ions to create environmentally friendly technology

et al. 2021

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Due to the growth of man-caused pollution, there is a need to use modern methods of water purification. It is advisable to use sorption methods for the extraction of heavy metals, which are considered to be particularly dangerous. It is established that sorbents based on magnetite are quite effective in the extraction of copper ions. It is shown that the sorption capacity of magnetite-based sorbents towards copper ions depends on the ratio of concentrations of Fe2+ and Fe3+ ions in the reaction mixture, and increases with increasing this indicator from 1/2 to 2. The sorption capacity of the sorbent towards copper ions increases by 4.4 times. It is shown that the efficiency of copper ions removal onto magnetite increases for sorbent modified with sodium sulfide. The proposed scheme provides the possibility of sorption treatment of large volumes of water from copper ions to the norms for the discharge of wastewater into fishery reservoirs. Post-productional magnetite is dehydrated and supplied to metallurgical enterprises for processing. The developed technology of water purification from copper ions is environmentally safe and energy efficient.

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“…The problem of water desalination is solved by using any of the known methods of water softening, desalination and deionization, such as reagent softening (Gomelya, M.D. et al 2014), ion exchange (Luo T. et al 2018), electrochemical methods (Trokhymenko G. et al 2020) or pressure-driven membrane processes (Bodzek M. et al 2019, Trus, I.M. et al 2020.…”

Section: Introductionmentioning

confidence: 99%

Archives of Environmental Protection

Trus,

Gomelya,

Vorobyova

et al. 2021

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A method to improve the quality of purified water, reduce the cost of reagents for the regeneration of resin and create low-waste processes have been developed. This paper presents the results of ion exchange separation of sulfates and nitrates using AV-17-8 anion exchange resin in NO 3 form. The efficiency of anion separation on the highly basic anion exchange resin AV-17-8 depends on the magnitude and ratio of their concentrations in water. Separation on the AV-17-8 anion exchange resin has been shown to be effective at concentrations of sulfates up to 800 mg/dm 3 and nitrates up to 100 mg/dm 3 . Conditions for regeneration of 10% NaNO 3 anion exchange resin were determined. Reagent precipitation of sulfates from the used regeneration solution in the form of calcium sulfate was carried out. Calcium sulfate precipitate can be used in the manufacturing of building materials. The regeneration solution is suitable for reuse. The developed results will allow to introduce low-waste desalination technology of highly mineralized waters.

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Study of the Process of Electro Evolution of Copper Ions from Waste Regeneration Solutions

Cited by 3 publications

References 8 publications

Regenerating Etching Solutions for Circuit Boards while Extracting Copper

Regenerating Etching Solutions for Circuit Boards while Extracting Copper

Optimization of dose calculation of modified magnetite during sorption purification of water from copper ions to create environmentally friendly technology

Archives of Environmental Protection

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