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Advanced catalytic oxidation process based on a Ti-permanganate (Mn/Ti-H(+)) reaction for the treatment of dye wastewater
This article discusses the titanium (Ti)-based permanganate advanced catalytic oxidation process (ACOP) for the possible recovery of thousands of tons of dye wastewater. The heterogeneous catalyst TiO(2) in the solid state employed in the liquid phase reaction mixture with dye and potassium permanga...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
The Royal Society of Chemistry
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9075581/ https://www.ncbi.nlm.nih.gov/pubmed/35542253 http://dx.doi.org/10.1039/c9ra03045j |
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author | Azmat, Rafia Khursheed, Anum Saleem, Ailyan Qamer, Noshab |
author_facet | Azmat, Rafia Khursheed, Anum Saleem, Ailyan Qamer, Noshab |
author_sort | Azmat, Rafia |
collection | PubMed |
description | This article discusses the titanium (Ti)-based permanganate advanced catalytic oxidation process (ACOP) for the possible recovery of thousands of tons of dye wastewater. The heterogeneous catalyst TiO(2) in the solid state employed in the liquid phase reaction mixture with dye and potassium permanganate was recovered and reused several times for reproducible results. The kinetics were examined at various operational parameters like the effect of dyes, the effect of oxidants, the amount of catalysts, and the effect of acids, temperature, and various organic and inorganic additives used in the textile industry. The kinetics of advanced oxidation and the mechanism of dye de-coloration and degradation were monitored using the Congo red (CR) dye as a model in an aqueous medium and then applied to other dyes and real dye wastewater samples. The color removal was up to 98%, with the removal efficiency being linear with the dose at a particular time. This method could exhibit the complete color removal of the dye wastewater, leading to mineralization coupled with a change in the oxidation state of Mn from +7 to +2. The method also improved the BOD/COD ratio, followed by an increase in the salinity of the recycled water. This indicated that this method can be used not only for the highly efficient de-colorization of dye wastewater but also as a preliminary step for the utilization of the dye wastewater after its recycling. The newly developed system was proven to be very cost-effective and eco-friendly with low sludge quantity, which contained numerous nitrogenous compounds, and this was validated by FTIR and HPLC analyses; thus, the system may be used in treatment plants for the recovery of wastewater. |
format | Online Article Text |
id | pubmed-9075581 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | The Royal Society of Chemistry |
record_format | MEDLINE/PubMed |
spelling | pubmed-90755812022-05-09 Advanced catalytic oxidation process based on a Ti-permanganate (Mn/Ti-H(+)) reaction for the treatment of dye wastewater Azmat, Rafia Khursheed, Anum Saleem, Ailyan Qamer, Noshab RSC Adv Chemistry This article discusses the titanium (Ti)-based permanganate advanced catalytic oxidation process (ACOP) for the possible recovery of thousands of tons of dye wastewater. The heterogeneous catalyst TiO(2) in the solid state employed in the liquid phase reaction mixture with dye and potassium permanganate was recovered and reused several times for reproducible results. The kinetics were examined at various operational parameters like the effect of dyes, the effect of oxidants, the amount of catalysts, and the effect of acids, temperature, and various organic and inorganic additives used in the textile industry. The kinetics of advanced oxidation and the mechanism of dye de-coloration and degradation were monitored using the Congo red (CR) dye as a model in an aqueous medium and then applied to other dyes and real dye wastewater samples. The color removal was up to 98%, with the removal efficiency being linear with the dose at a particular time. This method could exhibit the complete color removal of the dye wastewater, leading to mineralization coupled with a change in the oxidation state of Mn from +7 to +2. The method also improved the BOD/COD ratio, followed by an increase in the salinity of the recycled water. This indicated that this method can be used not only for the highly efficient de-colorization of dye wastewater but also as a preliminary step for the utilization of the dye wastewater after its recycling. The newly developed system was proven to be very cost-effective and eco-friendly with low sludge quantity, which contained numerous nitrogenous compounds, and this was validated by FTIR and HPLC analyses; thus, the system may be used in treatment plants for the recovery of wastewater. The Royal Society of Chemistry 2019-11-19 /pmc/articles/PMC9075581/ /pubmed/35542253 http://dx.doi.org/10.1039/c9ra03045j Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/ |
spellingShingle | Chemistry Azmat, Rafia Khursheed, Anum Saleem, Ailyan Qamer, Noshab Advanced catalytic oxidation process based on a Ti-permanganate (Mn/Ti-H(+)) reaction for the treatment of dye wastewater |
title | Advanced catalytic oxidation process based on a Ti-permanganate (Mn/Ti-H(+)) reaction for the treatment of dye wastewater |
title_full | Advanced catalytic oxidation process based on a Ti-permanganate (Mn/Ti-H(+)) reaction for the treatment of dye wastewater |
title_fullStr | Advanced catalytic oxidation process based on a Ti-permanganate (Mn/Ti-H(+)) reaction for the treatment of dye wastewater |
title_full_unstemmed | Advanced catalytic oxidation process based on a Ti-permanganate (Mn/Ti-H(+)) reaction for the treatment of dye wastewater |
title_short | Advanced catalytic oxidation process based on a Ti-permanganate (Mn/Ti-H(+)) reaction for the treatment of dye wastewater |
title_sort | advanced catalytic oxidation process based on a ti-permanganate (mn/ti-h(+)) reaction for the treatment of dye wastewater |
topic | Chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9075581/ https://www.ncbi.nlm.nih.gov/pubmed/35542253 http://dx.doi.org/10.1039/c9ra03045j |
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