Decolourization properties of pure phases in hydrated cement paste for anionic dyes in textile wastewater
The rise of fast fashion has increased the need for cost-effective adsorbents in textile wastewater treatment. Cementitious materials have shown promising decolourizing properties in anionic dye solutions. This study evaluates the decolourization properties of a selection of phases typically present...
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Elsevier
2025-02-01
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| Series: | Heliyon |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2405844025006115 |
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| author | Martin Behringer Harald Hilbig Brigitte Helmreich Alisa Machner |
| author_facet | Martin Behringer Harald Hilbig Brigitte Helmreich Alisa Machner |
| author_sort | Martin Behringer |
| collection | DOAJ |
| description | The rise of fast fashion has increased the need for cost-effective adsorbents in textile wastewater treatment. Cementitious materials have shown promising decolourizing properties in anionic dye solutions. This study evaluates the decolourization properties of a selection of phases typically present in hydrated cement paste, such as calcium-(alumino)-silicate-hydrate (C-(A)-S-H) phases, hydrotalcite, and monocarboaluminate. Three anionic dyes were tested in combination with different salts, which are used in textile dyeing. Reactive Blue 19 was adsorbed more effectively than the other dyes. C-(A)-S-H phases performed best in basic environments, while layered structures excelled in acidic conditions, with monocarboaluminate reaching over 250 mg/g at pH 5. The presence of salts significantly affected adsorption, with MgSO4 mainly enhancing the decolourization up to 178 mg/g for monocarboaluminate and NaCl reducing capacities to a maximum adsorption of 95 mg/g for hydrotalcite. For hydrotalcite and monocarboaluminate, the effect of pH and presence of salts on the overall decolourization could be explained by a linear correlation between the zeta potential of the solid phases and their decolourization capacity. These findings provide valuable insights into the potential of cementitious materials as low-cost adsorbents in the treatment of coloured textile wastewater. |
| format | Article |
| id | doaj-art-3bc93bd5d4134066853af48677e37795 |
| institution | Kabale University |
| issn | 2405-8440 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Heliyon |
| spelling | doaj-art-3bc93bd5d4134066853af48677e377952025-02-12T05:31:22ZengElsevierHeliyon2405-84402025-02-01114e42231Decolourization properties of pure phases in hydrated cement paste for anionic dyes in textile wastewaterMartin Behringer0Harald Hilbig1Brigitte Helmreich2Alisa Machner3Technical University of Munich, TUM School of Engineering and Design, Mineral Construction Materials, Franz-Langinger-Str. 10, 81245, Munich, Germany; Corresponding author.Technical University of Munich, TUM School of Engineering and Design, Mineral Construction Materials, Franz-Langinger-Str. 10, 81245, Munich, GermanyTechnical University of Munich, TUM School of Engineering and Design, Urban Water Systems Engineering, Am Coulombwall 3, 85748, Garching, GermanyTechnical University of Munich, TUM School of Engineering and Design, Mineral Construction Materials, Franz-Langinger-Str. 10, 81245, Munich, GermanyThe rise of fast fashion has increased the need for cost-effective adsorbents in textile wastewater treatment. Cementitious materials have shown promising decolourizing properties in anionic dye solutions. This study evaluates the decolourization properties of a selection of phases typically present in hydrated cement paste, such as calcium-(alumino)-silicate-hydrate (C-(A)-S-H) phases, hydrotalcite, and monocarboaluminate. Three anionic dyes were tested in combination with different salts, which are used in textile dyeing. Reactive Blue 19 was adsorbed more effectively than the other dyes. C-(A)-S-H phases performed best in basic environments, while layered structures excelled in acidic conditions, with monocarboaluminate reaching over 250 mg/g at pH 5. The presence of salts significantly affected adsorption, with MgSO4 mainly enhancing the decolourization up to 178 mg/g for monocarboaluminate and NaCl reducing capacities to a maximum adsorption of 95 mg/g for hydrotalcite. For hydrotalcite and monocarboaluminate, the effect of pH and presence of salts on the overall decolourization could be explained by a linear correlation between the zeta potential of the solid phases and their decolourization capacity. These findings provide valuable insights into the potential of cementitious materials as low-cost adsorbents in the treatment of coloured textile wastewater.http://www.sciencedirect.com/science/article/pii/S2405844025006115DecolourizationTextile wastewaterAnionic dyesHydrated cementitious phases |
| spellingShingle | Martin Behringer Harald Hilbig Brigitte Helmreich Alisa Machner Decolourization properties of pure phases in hydrated cement paste for anionic dyes in textile wastewater Heliyon Decolourization Textile wastewater Anionic dyes Hydrated cementitious phases |
| title | Decolourization properties of pure phases in hydrated cement paste for anionic dyes in textile wastewater |
| title_full | Decolourization properties of pure phases in hydrated cement paste for anionic dyes in textile wastewater |
| title_fullStr | Decolourization properties of pure phases in hydrated cement paste for anionic dyes in textile wastewater |
| title_full_unstemmed | Decolourization properties of pure phases in hydrated cement paste for anionic dyes in textile wastewater |
| title_short | Decolourization properties of pure phases in hydrated cement paste for anionic dyes in textile wastewater |
| title_sort | decolourization properties of pure phases in hydrated cement paste for anionic dyes in textile wastewater |
| topic | Decolourization Textile wastewater Anionic dyes Hydrated cementitious phases |
| url | http://www.sciencedirect.com/science/article/pii/S2405844025006115 |
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