Electrodialysis Recovery of Nickel, Copper and Water from Rinse Water of Copper/Nickel Sulfamate Multilayer Plating.

Yajima, Kyoko; Kume, Michiyuki

doi:10.4139/sfj.50.1162

Cited by 2 publications

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“…However, the solution concentration was not mentioned in the article. In another study, 0.05M sulfamic acid was used as the electrode rinse solution in an ED application to recover Ni and Cu from plating wastes (Yajima and Kume, 1999). As part of our overall research effort to improve the ion flux in treating highly concentrated brines (Severin and Hayes 2012), we concentrated efforts on the electrolyte system (disodium sulfate) recommended by the manufacturer of the ED pilot unit.…”

Section: Introductionmentioning

confidence: 99%

Electrodialysis of highly concentrated brines: Effects of calcium

Hayes

Severin²

2017

Separation and Purification Technology

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Electrodialysis (ED) is an electrochemically driven membrane technology that is usually used for treating feed water containing several thousand mg/l total dissolved solids (TDS). This research investigated the use of ED for the treatment of flowback water from shale gas hydro fracture. Shale brines contain tens of thousands of mg/l TDS and contain a mixture of multivalent cations, such as calcium, magnesium, barium, strontium, radium, iron, and manganese. This paper covers efforts undertaken to mitigate problems associated with high concentrations of calcium (4,000 mg/l) in the presence of 30,000 mg/l NaCl. Eight baseline ED tests were performed with sodium chloride. Seven additional runs were designed to understand the effect of calcium on the electrodialysis process. Initial tests showed strong incursion of calcium into the electrolyte using a CMX barrier membrane. The apparent calcium fouling (in and around) the electrode cells was indicated by a rapid degradation of process efficiency, observed as a decrease in current. The single cathode boundary membrane was replaced with a membrane that was more selective against multivalent cations (CMX-S). Calcium flux into the electrolyte was reduced by 47-73% and the ion flux from the concentrate to the diluate improved by approximately 40% compared to the baseline. Additionally, the replacement of the single cathode boundary membrane imparted an apparent immunity to direct fouling by addition of calcium directly into the electrolyte.

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Section: Introductionmentioning

confidence: 99%

Electrodialysis of highly concentrated brines: Effects of calcium

Hayes

Severin²

2017

Separation and Purification Technology

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Permeation Behavior of Methanesulfonic Acid and Tin Methanesulfonate Solutions in Diffusion Dialysis and Electrodialysis with Ion-exchange Membranes

Takahashi¹,

Kikuchi²

2008

Resources Processing

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Membrane permeation characteristics of methanesulfonic acid and tin methanesulfonate were examined in diffusion dialysis and electrodialysis with ion-exchange membranes. In the diffusion dialysis experiments, the methanesulfonic acid permeated through an anion-exchange membrane, but did not permeated through a cation-exchange membrane. The apparent diffusivities of methanesulfonic acid through the anion-exchange membrane were determined with the flux of methanesulfonic acid and the concentration difference between the compartments. The values were the same order of hydrochloric acid permeation in the anion-exchange membrane. In the experiment of electrodialysis for tin methanesulfonate solution, methanesulfonic acid moved to the anode-side strip compartment through the anionexchange membrane, but tin ion moved to the cathode-side strip compartment through the cation-exchange membrane. These fluxes were almost proportional to the current density, and the flux of tin ion agreed with the theoretical value corresponding to that di-charged ion permeates at the transport number equal to unity.

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Electrodialysis Recovery of Nickel, Copper and Water from Rinse Water of Copper/Nickel Sulfamate Multilayer Plating.

Cited by 2 publications

References 0 publications

Electrodialysis of highly concentrated brines: Effects of calcium

Electrodialysis of highly concentrated brines: Effects of calcium

Permeation Behavior of Methanesulfonic Acid and Tin Methanesulfonate Solutions in Diffusion Dialysis and Electrodialysis with Ion-exchange Membranes

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