New approaches to comprehensive electrochemical processing of sulfate-chloride high-mineralized wastewater treatment residues

• Autorzy: Shabliy, Tetyana , Ivanenko, Olena , Plashykhin, Sergii , Pavliuk, Nonna , Safiants, Artem , Sidorov, Dmytro
• Języki publikacji: EN

Abstrakty

EN

The results of electrochemical processing of spent acidic, neutral, and alkaline sulfate-chloride-containing regenerative solutions in two- and three-chamber electrolyzers are presented. It has been determined that the highest current efficiency for the products of electrodialysis can be achieved in the presence of hardness ions when processing acidic sulfate-containing solutions using three-chamber electrolyzers. It has been established that during electrodialysis of alkaline solutions after regeneration of anionites containing chloride ions, accumulation of alkali occurs in the cathodic region, and in the anodic region, chloride ions accumulate due to diffusion through the anion exchange membrane during the first stage, followed by preferential oxidation of chloride ions with liberation of free chlorine during the second stage. It has been shown that electrodialysis can effectively solve the problem of comprehensive processing of neutral, alkaline, and acidic regenerative sulfate-chloride-containing solutions, with the production of alkali and acid at concentrations suitable for reuse in regeneration processes.

Słowa kluczowe

PL

obróbka elektrochemiczna; elektrodializa; zużyte roztwory regeneracyjne; roztwory siarczanowo-chlorkowe; elektrolizer trójkomorowy; membrana anionowa; membrana kationowa

EN

electrochemical processing; electrodialysis; spent regenerant solutions; sulfate-chloride solutions; three-chamber electrolyzer; anion membrane; cation membrane

• Czasopismo: Architecture Civil Engineering Environment
• Rocznik: 2023
• Tom: Vol. 16, no. 3
• Strony: 171--180
• Opis fizyczny: Bibliogr. 16 poz.

Twórcy

autor

Shabliy, Tetyana

• Dr. Hab Eng.; Department of Ecology and Technology of Plant Polymers National Technical University of Ukraine“Igor Sikorsky Kyiv Polytechnic Institute”, 37 Prospect Beresteiskyi (former Peremohy), Kiev, 03056, Ukraine

autor

Ivanenko, Olena

• Dr. Hab Eng.; Department of Ecology and Technology of Plant Polymers National Technical University of Ukraine“Igor Sikorsky Kyiv Polytechnic Institute”, 37 Prospect Beresteiskyi (former Peremohy), Kiev, 03056, Ukraine

autor

Plashykhin, Sergii

• Dr. Eng.; Automation Hardware and Software Department National Technical University of Ukraine “Igor SikorskyKyiv Polytechnic Institute”, 37 Prospect Beresteiskyi (former Peremohy), Kiev, 03056, Ukraine
• Departmentof Heat-Physical Problems of Heat Supply Systems, Institute of Engineering Thermophysics of National Academyof Sciences, 2a, Marii Kapnist (Zhelyabova) Str., Kyiv, 03057, Ukraine

autor

Pavliuk, Nonna

• Dr. Eng.; Department of Heat-Physical Problems of Heat Supply Systems Institute of Engineering Thermophysicsof National Academy of Sciences, 2a, Marii Kapnist (Zhelyabova) Str., Kyiv, 03057, Ukraine,

autor

Safiants, Artem

• Dr. Eng.; Department of Heat-Physical Problems of Heat Supply Systems Institute of Engineering Thermophysicsof National Academy of Sciences, 2a, Marii Kapnist (Zhelyabova) Str., Kyiv, 03057, Ukraine

autor

Sidorov, Dmytro

• Dr. Eng..; Department of Chemical, Polymer and Silicate Engineering National TechnicalUniversity of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute”, 37 Prospect Beresteiskyi (former Peremohy),Kiev, 03056, Ukraine

Bibliografia

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Identyfikatory

DOI

10.2478/acee-2023-0044