Use of Photothermal Materials in the Disinfection of Contaminated Surface Water

This study aimed to enhance solar distillation systems through the incorporation of photothermal materials. The adopted methodology involved integrating these materials into the solar stills to improve solar radiation absorption, thereby increasing the water temperature. As a result, internal temper...

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Bibliographic Details
Main Authors: Kênia Kelly Freitas Sarmento, Vanessa Rosales Conserva, Camylla Barbosa Silva, Karyna Steffane da Silva, Keila Machado de Medeiros, Carlos Antônio Pereira de Lima
Format: Article
Language:English
Published: Associação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol) 2025-07-01
Series:Materials Research
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Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392025000200255&lng=en&tlng=en
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Summary:This study aimed to enhance solar distillation systems through the incorporation of photothermal materials. The adopted methodology involved integrating these materials into the solar stills to improve solar radiation absorption, thereby increasing the water temperature. As a result, internal temperature profiles reached up to 70 °C. Additionally, thermal imaging was employed to support the thermal behavior analysis of the system. The productivity of distilled water increased by 16% for the distiller (D2) containing gravel and by 3% for D3 with marbles, compared to the control unit (D1), which had no added materials. The highest thermal efficiency was observed in D1, reaching 52.8%, followed by D2 with 52.7% and D3 with 36.9%. Physicochemical and bacteriological analyses were conducted before and after the distillation process to assess water quality, including the presence of microorganisms. The results confirmed that the incorporation of photothermal materials was effective in enhancing salt and microorganism removal from the treated water.
ISSN:1516-1439