Publication
FitorremediaĆ§Ć£o de nutrientes em excesso na Ribeira da Costa/Couros
| datacite.subject.fos | Engenharia e Tecnologia | |
| datacite.subject.sdg | 09:IndĆŗstria, InovaĆ§Ć£o e Infraestruturas | |
| datacite.subject.sdg | 12:ProduĆ§Ć£o e Consumo SustentĆ”veis | |
| datacite.subject.sdg | 07:Energias RenovĆ”veis e AcessĆveis | |
| dc.contributor.advisor | GonƧalves, Ana Clara Fortio Mourato Teixeira Grosso | |
| dc.contributor.advisor | Morais, Simone Barreira | |
| dc.contributor.author | MARTINS, ANA RITA TEIXEIRA | |
| dc.date.accessioned | 2025-11-10T09:49:26Z | |
| dc.date.available | 2025-11-10T09:49:26Z | |
| dc.date.issued | 2025-10-16 | |
| dc.description.abstract | A crescente pressĆ£o antrĆ³pica sobre os sistemas fluviais urbanos tem conduzido a fenĆ³menos de degradaĆ§Ć£o ecolĆ³gica e eutrofizaĆ§Ć£o, exigindo soluƧƵes sustentĆ”veis e eficazes para a melhoria da qualidade da Ć”gua. Neste contexto, o presente trabalho teve como objetivo avaliar a eficĆ”cia de trĆŖs espĆ©cies de macrĆ³fitos, T. latifolia L., J. effusus L. e I. pseudacorus L., na remoĆ§Ć£o de nutrientes (nitratos, azoto amoniacal e fĆ³sforo) atravĆ©s de ensaios laboratoriais controlados, e a sua posterior aplicaĆ§Ć£o em contexto real, na Ribeira da Costa/Couros, GuimarĆ£es, como estratĆ©gia de reabilitaĆ§Ć£o ecolĆ³gica. Os resultados laboratoriais demonstraram que T. latifolia, I. pseudacorus e J. effusus foram particularmente eficazes na remoĆ§Ć£o de nitratos, com taxas de remoĆ§Ć£o de 100% em todos os casos, comparativamente aos 33,4% observados no grupo controlo, resultando em diferenƧas estatisticamente significativas. Relativamente ao fĆ³sforo, J. effusus obteve uma taxa de remoĆ§Ć£o de 100%, I. pseudacorus de 98,5% e T. latifolia de 96,0% em contraste com os 71,1% registados no controlo. Quanto ao fosfato, J. effusus revelou novamente uma remoĆ§Ć£o completa (100%), seguida por I. pseudacorus com 98,5% e T. latifolia com 96,1%, superando significativamente os 65,7% do grupo sem plantas. As diferenƧas estatisticamente significativas na remoĆ§Ć£o de fĆ³sforo e fosfato foram observadas apenas entre I. pseudacorus e J. effusus em comparaĆ§Ć£o com o grupo controlo. Relativamente ao azoto amoniacal, observaram-se taxas mais moderadas, com T. latifolia a alcanƧar 87,8%, I. pseudacorus 86,1% e J. effusus 85,3%, comparativamente aos 77,4% do grupo controlo, nĆ£o tendo sido detetadas diferenƧas estatisticamente significativas neste parĆ¢metro. A anĆ”lise visual confirmou o desenvolvimento das plantas ao longo do ensaio, com maior vigor observado em T. latifolia e I. pseudacorus. Em contexto real, verificou-se um crescimento satisfatĆ³rio das espĆ©cies em zonas da ribeira com menor perturbaĆ§Ć£o humana, embora tenha sido observada a proliferaĆ§Ć£o de espĆ©cies invasoras e o desaparecimento dos macrĆ³fitos introduzidos em zonas mais expostas. Os resultados de monitorizaĆ§Ć£o da Ć”gua apontam para uma manutenĆ§Ć£o da qualidade da mesma, sem alteraƧƵes significativas, o que reforƧa a importĆ¢ncia da densidade de plantaĆ§Ć£o, tempo de maturaĆ§Ć£o e controlo de variĆ”veis externas, como descargas ilegais, carga contaminante e presenƧa de espĆ©cies exĆ³ticas. Estes resultados validam o potencial da fitorremediaĆ§Ć£o com macrĆ³fitos como ferramenta de reabilitaĆ§Ć£o ecolĆ³gica urbana e destacam a necessidade de abordagens integradas e de longo prazo para garantir a sua eficĆ”cia. | por |
| dc.description.abstract | The increasing anthropogenic pressure on urban river systems has led to ecological degradation and eutrophication phenomena, requiring sustainable and effective solutions for improving water quality. In this context, the present study aimed to evaluate the effectiveness of three macrophyte species, T. latifolia L., J. effusus L., and I. pseudacorus L., in nutrient removal (nitrates, ammonia nitrogen, and phosphorus) through controlled laboratory experiments and their subsequent application in a real context, in the Ribeira da Costa/Couros, GuimarĆ£es, as an ecological rehabilitation strategy. Laboratory results showed that T. latifolia, I. pseudacorus and J. effusus were particularly effective in the removal of nitrates, all achieving 100% removal rates compared to 33.4% in the control group, resulting in statistically significant differences. Regarding phosphorus, J. effusus reached a removal rate of 100%, followed by I. pseudacorus with 98.5% and T. latifolia with 96,0%, in contrast to the 71.1% recorded in the control group. In terms of phosphate, J. effusus once again achieved complete removal (100%), followed by I. pseudacorus with 98.5% and T. latifolia with 96.1%, significantly surpassing the 65.7% observed in the control group. Statistically significant differences in the removal of phosphorus and phosphate were only observed for I. pseudacorus and J. effusus when compared to the control. As for ammonia nitrogen, more moderate removal rates were observed, with T. latifolia reaching 87.8%, I. pseudacorus 86.1%, and J. effusus 85.3%, compared to 77.4% in the control group; however, no statistically significant differences were found for this parameter. Visual analysis confirmed plant development throughout the experiment, with greater vigour observed in T. latifolia and I. pseudacorus.In the field application, satisfactory growth of the species was observed in areas with less human disturbance, although invasive plant proliferation and the disappearance of introduced macrophytes in more exposed zones were also recorded. Water monitoring results indicated overall stability in water quality, with no significant changes detected. This underscores the importance of planting density, maturation time, and the management of external factors such as illegal discharges, pollutant load, and the presence of non-native species. These findings validate the potential of macrophyte-based phytoremediation as a tool for urban ecological restoration and emphasise the need for integrated, long-term approaches to ensure its effectiveness. | eng |
| dc.identifier.tid | 204032725 | |
| dc.identifier.uri | http://hdl.handle.net/10400.22/30774 | |
| dc.language.iso | por | |
| dc.rights.uri | N/A | |
| dc.subject | I | |
| dc.subject | pseudacorus | |
| dc.subject | T | |
| dc.subject | latifolia | |
| dc.subject | J | |
| dc.subject | effusus | |
| dc.subject | NO3 | |
| dc.subject | ? | |
| dc.subject | ||
| dc.subject | NH4+ | |
| dc.subject | P | |
| dc.subject | PO4 | |
| dc.subject | Ā³? | |
| dc.subject | ||
| dc.subject | Phytoremediation | |
| dc.subject | FitorremediaĆ§Ć£o | |
| dc.title | FitorremediaĆ§Ć£o de nutrientes em excesso na Ribeira da Costa/Couros | por |
| dc.title.alternative | Phytoremediation of excess nutrients in the Costa/Couros Stream | eng |
| dc.type | master thesis | |
| dspace.entity.type | Publication | |
| thesis.degree.name | Mestrado em Engenharia Biorrecursos |