CIMO - Posters em Encontros Científicos Internacionais
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- Bio Ilhas Project: Blending Research with scientific and educational disseminationPublication . Ferreira, Nathália Borges Bartoli; Sá, Isabel; Fachada, Ivone; Pereira, Ana I.; Calheiros, Cristina; Geraldes, Ana MariaFreshwater ecosystems provide humanity with a wide range of services, particularly water supply and purification. However, many of these ecosystems and their associated biodiversity are threatened significantly. Therefore, the introduction of nature-based solutions, such as floating wetland islands, in these ecosystems can contribute to the improvement of water quality and habitat provision and, when integrated with an environmental education context, can be used as powerful tools to engage students, tourists, and the general public in interactive experiences, allowing them to become more familiar with the function of freshwater ecosystems and biodiversity. Both the Fervença and Côa rivers are located in the Douro basin. The Fervença is an urban river, about 25 km long, which flows through Bragança. Along its course, it encounters non-point and point sources of pollution. In the urban core, the riverbed has been regulated, an artificial riverbank has been created, and the riparian forest has been partially removed. In this area, algal blooms occur, especially in summer, which negatively affect the water and visual quality of the area. The Côa is about 140 km long and flows through an agricultural and natural landscape. Nevertheless, the longitudinal connectivity of the river is reduced by several weirs, and the coffer dam has never been removed, even after a dam construction project was abandoned due to the discovery of important archaeological heritage. The Bio ilhas project, led by the Bragança Ciência Viva Science Center, aims to place floating islands in the urban core of Fervença and the lentic area influenced by the Côa coffer dam, the river areas affected by human activity at different levels. Therefore, the present communication aims to present the Bio ilhas project and the related activities conciliating research with scientific and educational dissemination to ultimately contribute to freshwater ecosystem conservation.
- Rainwater harvesting with conventional or green roofs?Publication . Silva, Flora; Calheiros, Cristina; Albuquerque, António; Lopes, Jorge; Geraldes, Ana MariaThe present approach aims to evaluate the technical and financial feasibility of a rainwater harvesting system for an industrial building in Northeast Portugal, considering the existing conventional roof (scenario 1) and the adaptation of a green roof to the existing roof (scenario 2). In this evaluation, the impact of the two scenarios on the water savings of the building was considered. The expected water savings were 64.47% and 59.43% for scenarios 1 and 2, respectively. Therefore, the expected reduction in the annual water bill was €3867.07 + VAT (scenario 1) and €3564.63 + VAT (scenario 2). For scenario 1, considering a reservoir of 70 m3 for non-potable purposes, such as washing the floor of the building and use in industrial machinery, and an initial investment of 41,109.13 € + VAT, the single payback is 11.29 years. The single payback for Scenario 2 largely exceeded the lifetime of the green roof. However, financial incentives could be proposed to implement green roofs in this building typology, as they are considered interesting solutions to reduce the negative externalities of industrial settlements.