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Othmani A, Kesraoui A, Akrout H, López-Mesas M, Seffen M, Valiente M. Use of alternating current for colored water purification by anodic oxidation with SS/PbO 2 and Pb/PbO 2 electrodes. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:25969-25984. [PMID: 31273665 DOI: 10.1007/s11356-019-05722-w] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2019] [Accepted: 06/10/2019] [Indexed: 06/09/2023]
Abstract
This paper suggests a new alternative for the acceleration of dye removal by adopting alternating current instead of direct current in the treatment of methylene blue solutions and industrials effluents, using anodic oxidation on Pb/PbO2 and stainless steel (SS)/PbO2 anodes. A comparative study of the influence of electrolyte support (NaCl, NaNO3, and Na2SO4) on the anodic oxidation performance and the anode stability was performed. The best results were obtained in presence of NaCl where the color removal percentage reached about 80.13% and 55.8%, for Pb/PbO2 anodes, and 89.5% and 60.4% for the SS/PbO2 anodes for alternating and direct current, respectively. Treatment in alternating current conditions enhanced the removal speed. Atomic absorption analysis confirmed the decrease of the release of (Pb2+) ions to much lower values compared with direct current and to those allowed by the Standards. LC/MS and phytotoxicity analyses confirmed the non-toxicity of the generated by-products during the anodic oxidation of methylene blue and the possibility of the reuse of the treated water.
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Affiliation(s)
- Amina Othmani
- Laboratory of Energy and Materials (LabEM): LR11ES34, Higher School of Science and Technology of Hammam Sousse, University of Sousse, Sousse, Tunisia.
- Faculty of Sciences of Monastir, Monastir University, Monastir, Tunisia.
| | - Aida Kesraoui
- Laboratory of Energy and Materials (LabEM): LR11ES34, Higher School of Science and Technology of Hammam Sousse, University of Sousse, Sousse, Tunisia
| | - Hanene Akrout
- Laboratory of Wastewaters and Environment, Center of Water Researches and Technologies (CERTE), Echopark Borj Cedria B.P. 273, 8020, Soliman, Tunisia
| | - Montserrat López-Mesas
- Centre Grup de Técniques de Separació, en Química (GTS), Unitat de Química Analítica, Departament de Química, Facultat de Ciències, Universitat Autònoma de Barcelona, 08193, Bellaterra, Spain
| | - Mongi Seffen
- Laboratory of Energy and Materials (LabEM): LR11ES34, Higher School of Science and Technology of Hammam Sousse, University of Sousse, Sousse, Tunisia
| | - Manuel Valiente
- Centre Grup de Técniques de Separació, en Química (GTS), Unitat de Química Analítica, Departament de Química, Facultat de Ciències, Universitat Autònoma de Barcelona, 08193, Bellaterra, Spain
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A novel cureless pure lead oxide plate for valve-regulated lead-acid batteries. J APPL ELECTROCHEM 2004. [DOI: 10.1007/s10800-004-2727-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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The influence of PbO modification on the kinetics of the 4PbO�PbSO4 lead-acid battery paste formation. J APPL ELECTROCHEM 1979. [DOI: 10.1007/bf00610941] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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