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Your search keyword '"Ribeirinho-Soares, Sara"' showing total 13 results
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13 results on '"Ribeirinho-Soares, Sara"'

7. Native Microalgae-Bacteria Consortia: A Sustainable Approach for Effective Urban Wastewater Bioremediation and Disinfection.

Author

Sousa, Joana F., Amaro, Helena M., Ribeirinho-Soares, Sara, Esteves, Ana F., Salgado, Eva M., Nunes, Olga C., and Pires, José C. M.

Subjects
WATER purification, EMERGING contaminants, SEWAGE disposal plants, DRUG resistance in bacteria, WASTEWATER treatment, COLIFORMS
Abstract

Urban wastewater is a significant by-product of human activities. Conventional urban wastewater treatment plants have limitations in their treatment, mainly concerning the low removal efficiency of conventional and emerging contaminants. Discharged wastewater also contains harmful microorganisms, posing risks to public health, especially by spreading antibiotic-resistant bacteria and genes. Therefore, this study assesses the potential of a native microalgae-bacteria system (MBS) for urban wastewater bioremediation and disinfection, targeting NH4+-N and PO43−-P removal, coliform reduction, and antibiotic resistance gene mitigation. The MBS showed promising results, including a high specific growth rate (0.651 ± 0.155 d−1) and a significant average removal rate of NH4+-N and PO43−-P (9.05 ± 1.24 mg L−1 d−1 and 0.79 ± 0.06 mg L−1 d−1, respectively). Microalgae-induced pH increase rapidly reduces coliforms (r > 0.9), including Escherichia coli, within 3 to 6 days. Notably, the prevalence of intI1 and the antibiotic resistance genes sul1 and blaTEM are significantly diminished, presenting the MBS as a sustainable approach for tertiary wastewater treatment to combat eutrophication and reduce waterborne disease risks and antibiotic resistance spread. [ABSTRACT FROM AUTHOR]

Published
2024
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12. A Pilot Study Combining Ultrafiltration with Ozonation for the Treatment of Secondary Urban Wastewater: Organic Micropollutants, Microbial Load and Biological Effects

Author

Graça, Cátia A. L., primary, Ribeirinho-Soares, Sara, additional, Abreu-Silva, Joana, additional, Ramos, Inês I., additional, Ribeiro, Ana R., additional, Castro-Silva, Sérgio M., additional, Segundo, Marcela A., additional, Manaia, Célia M., additional, Nunes, Olga C., additional, and Silva, Adrián M. T., additional

Published
2020
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13. Performance of polycarbonate, cellulose nitrate and polyethersulfone filtering membranes for culture-independent microbiota analysis of clean waters.

Author

Abreu-Silva, Joana, Ribeirinho-Soares, Sara, Oliveira-Inocêncio, Inês, Pedrosa, Marta, Silva, Adrián M.T., Nunes, Olga C., and Manaia, Célia M.

Abstract

Demineralized and disinfected waters may have very low microbial loads, requiring that large volumes of water are filtered to recover enough biomass for further analysis. Extended filtration periods, often interrupted by clogging, are a major limiting factor to concentrate samples’ microbiota for further examination, besides hindering the work pace. In this study, we investigated the performance of three types of filtering membranes - polycarbonate (PC), cellulose nitrate (CN), and polyethersulfone (PES) with 0.22µm pore size for culture-independent microbiological analysis (quantitative PCR of seven housekeeping and integrase genes) of tap water, recirculating tap water in a bottle washing loop, and of demineralized water.

Published
2022
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