New Approaches to Comprehensive Electrochemical Processing of Sulfate-Chloride High-Mineralized Wastewater Treatment Residues-Reference-Cited by-同舟云学术

New Approaches to Comprehensive Electrochemical Processing of Sulfate-Chloride High-Mineralized Wastewater Treatment Residues

Published:2023-09-01 Issue:3 Volume:16 Page:171-180
ISSN:2720-6947
Container-title:Architecture, Civil Engineering, Environment
language:en
Short-container-title:

Author:

Shabliy Tetyana¹^ORCID,Ivanenko Olena²^ORCID,Plashykhin Sergii³^ORCID,Pavliuk Nonna⁴^ORCID,Safiants Artem⁵^ORCID,Sidorov Dmytro⁶^ORCID

Affiliation:

1. 1 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 , , Ukraine

2. 2 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 , , Ukraine

3. 3 Dr. Eng. ; Automation Hardware and Software Department National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute” , 37 Prospect Beresteiskyi (former Peremohy) , Kiev , , Ukraine ; Department of Heat-Physical Problems of Heat Supply Systems , Institute of Engineering Thermophysics of National Academy of Sciences , 2a, Marii Kapnist (Zhelyabova) Str. , Kyiv , , Ukraine

4. 4 Dr. Eng. ; Department of Heat-Physical Problems of Heat Supply Systems Institute of Engineering Thermophysics of National Academy of Sciences , 2a, Marii Kapnist (Zhelyabova) Str. , Kyiv , , Ukraine

5. 5 Dr., Eng , Department of Heat-Physical Problems of Heat Supply Systems , Institute of Engineering Thermophysics of National Academy of Sciences , 2a, Marii Kapnist (Zhelyabova) Str. , Kyiv , , Ukraine

6. 6 Dr. Eng.. ; Department of Chemical, Polymer and Silicate Engineering National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute” , 37 Prospect Beresteiskyi (former Peremohy) , Kiev , , Ukraine

Abstract

Abstract 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.

Publisher

Walter de Gruyter GmbH

Link

https://www.sciendo.com/pdf/10.2478/acee-2023-0044

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