https://repositorio.ufba.br/handle/ri/8275 2026-04-17T03:00:59Z 2026-04-17T03:00:59Z Lins, Louise Silveira, Dominique Sales, Emerson Perelo, Louisa https://repositorio.ufba.br/handle/ri/18288 2022-08-26T14:03:06Z 2014-01-01T00:00:00Z

Título: Cultivation of nannochloropsis sp. in brackish groundwater supplemented with municipal wastewater as a nutrient source Autor(es): Lins, Louise; Silveira, Dominique; Sales, Emerson; Perelo, Louisa Abstract: The aim of this work was to study growth potential of the green microalgae Nannochloropsis sp. using brackish groundwater from a well in the semi-arid northeast region of Brazil as culture medium. The medium was supplemented with (%) 19.4, 22.0, 44.0 and 50.0% of municipal wastewater after UASB treatment as a low-cost nutrient source. The results showed that the culture tested was capable of growing in the brackish groundwater even at salinity levels as low as 2 ppt. Furthermore it was shown that municipal wastewater could be used as a sole nutrient source for Nannochloropsis sp. Editora / Evento / Instituição: Instituto de Tecnologia do Paraná - Tecpar Tipo: Artigo de Periódico

2014-01-01T00:00:00Z Pereira, Darlan A. José, Nadia Mamede Villamizar, Sonia M. G. Sales, Emerson A. Perelo, Louisa W. https://repositorio.ufba.br/handle/ri/18287 2022-08-26T14:03:23Z 2014-01-01T00:00:00Z

Título: Hollow glass microspheres for temperature and irradiance control in photobioreactors Autor(es): Pereira, Darlan A.; José, Nadia Mamede; Villamizar, Sonia M. G.; Sales, Emerson A.; Perelo, Louisa W. Abstract: The addition of hollow glass microspheres (HGM) to polymers to change thermal insulation and mechanical properties is widely used. In this study HGM were tested as a new construction material for photobioreactors to control irradiance and broth temperature in microalgae cultivation. The heat isolation properties of HGMs of three different densities were tested in a polymer matrix. The transmittance (5–50%) and the thermal conductivity (182.05–190.73 W/mK) of the HGM composite material were analyzed. The results were tested in a model to predict the broth temperature and the growth rate as a function of temperature and irradiance. The addition of 1.3 and 0.6 vol.% of HGM lead to an increase in the growth rate of up to 37% and a reduction in the broth temperature up to 9 °C. The mechanical resistance of the composites tested is similar to the polymer matrix. Editora / Evento / Instituição: Elsevier Tipo: Artigo de Periódico

2014-01-01T00:00:00Z Ceccato, Lucia Giannini, Valentina Giupponi, Carlo https://repositorio.ufba.br/handle/ri/15307 2022-08-26T14:02:44Z 2011-01-01T00:00:00Z

Título: Participatory assessment of adaptation strategies to flood risk in the Upper Brahmaputra and Danube river basins Autor(es): Ceccato, Lucia; Giannini, Valentina; Giupponi, Carlo Abstract: A methodological proposal aimed at improving the effectiveness of interactions between the scientific community and local actors for decision-making processes in water management was developed and tested to two case studies, in Europe and Asia: the Upper Danube (Danube) and Upper Brahmaputra (Brahmaputra) River Basins. The general objectives of the case studies were about identifying and exploring the potential of adaptation strategies to cope with flood risk in mountain areas. The proposal consists of a sequence of steps including participatory local workshops and the use of a decision support systems (DSS) tool. Workshops allowed for the identification of four categories of possible responses and a set of nine evaluation criteria, three for each of the three pillars of sustainable development: economy, society and the environment. They also led to the ranking of the broad categories of response strategies, according to the expectations and preferences of the workshop participants, with the aim of orienting and targeting further activities by the research consortium. The DSS tool was used to facilitate transparent and robust management of the information, the implementation of multi criteria decision analysis and the communication of the outputs. The outcomes of the implementation of the proposed methods and DSS tool are discussed to assess the potential to support decision-making processes in the field of climate change adaptation (CCA) and integrated water resources management (IWRM). Tipo: Artigo de Periódico

2011-01-01T00:00:00Z Medeiros, Y. D. P. Srdjevic, B. Faria, A. S. https://repositorio.ufba.br/handle/ri/14061 2022-08-26T14:03:12Z 2004-01-01T00:00:00Z

Título: An objective multi-criteria evaluation of water management scenarios Autor(es): Medeiros, Y. D. P.; Srdjevic, B.; Faria, A. S. Abstract: Advanced computer models are commonly used to simulate reservoir system's performance. If the number of possible management scenarios is large, it can be extremely difficult to follow related system's operation and get a valuable picture on its spatial and temporal behavior. The decision maker or analyst can be overburdened by quantity and complexity of information generated by model, particularly if system operation is repeatedly simulated for multiyear periods. Related problem is how to select the scenario with most desired long-term consequences. Possible approach is to use selected parts of model's output and re-interpret system behavior by means of certain performance indicators, create appropriate decision matrix and perform multi-criteria analysis to rank decision alternatives (scenarios). The paper proposes a methodology that includes: (1) multiyear simulations of system operation; (2) computing spatially and temporally distributed systemperformance indices such as supply reliability, resiliency and vulnerability; (3) unbiased entropy-based weighting the importance ofperformance indices; and (4) final ranking of scenarios by means of multi-criteria analysis. The number of scenarios and number of performance indices is not restricted, and to account for possibly large sets of scenarios, an ideal-point-distance multi-criteria method TOPSIS is suggested. Proposed methodology appeared to be confident and robust in proof-of-concept application in Brazil. Tipo: Artigo de Periódico

2004-01-01T00:00:00Z