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5 results on '"Abby Daniela Ortega Sandoval"'

1. Hydrologic–hydraulic assessment of SUDS control capacity using different modeling approaches: a case study in Bogotá, Colombia

Author

Abby Daniela Ortega Sandoval, Johanna Sörensen, Juan Pablo Rodríguez, and Luna Bharati

Subjects
1d model, 2d model, green infrastructure, hydraulic response, overland flow, stormwater management, Environmental technology. Sanitary engineering, TD1-1066
Abstract

Urban flooding has increased in response to impervious surface intensification, the loss of green areas, and high-intensity rainfall associated with climate change. Sustainable urban drainage systems (SUDS) are an appealing option for stormwater management; however, their hydraulic control capabilities have received little attention. We developed a comparative model-based approach with 24 scenarios to contrast the hydrologic and hydraulic response of a highly discretized (HD) 1D model and a coupled 1D–2D model, considering the impact of rainwater harvesting systems and tree pits. An additional scenario was modeled including attenuation storage tanks, green roofs, and pervious pavements. A heavily urbanized flood-prone catchment with severe land-use constraints in Bogotá, Colombia, was selected for analysis. The findings revealed that SUDS can contribute to reducing the number of flooded junctions, overloaded conduits' length, overloading time, nodal inundation depth, and waterlogging extent. Furthermore, the HD 1D model can reproduce the coupled 1D–2D model results in terms of hydrologic response and some hydraulic control indicators. Further research is needed for an accurate description of the internal hydraulic mechanisms of SUDS interacting with overland flow. The key findings of this study provide model-based evidence to support urban stormwater management decision-making in data-scarce environments. HIGHLIGHTS 24 scenarios contrasting SUDS performance using a HD 1D and a coupled 1D–2D model.; Discussion on data requirements, limitations, and hydrologic–hydraulic response.; HD 1D models can reproduce the hydrologic response of 1D–2D models.; HD 1D models can partially reproduce the hydraulic 1D–2D model results.; SUDS provide hydraulic control in heavily urbanized areas.;

Published
2023
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3. Análise do Espaço Público, por meio de Variáveis Climáticas, na Zona Central de Cidade do Norte do Rio Grande do Sul, Brasil

Author

Rosa Maria Locatelli Kalil, Amanda Lange Salvia, Manuel Ricardo Galileo Ramírez Martínez, and Abby Daniela Ortega Sandoval

Subjects
education.field_of_study, Geography, Planning and Development, Population, Microclimate, Forestry, Vegetation, Management, Monitoring, Policy and Law, Urban Studies, Public space, Geography, Urban planning, Sun exposure, education, Urban environment
Abstract

Aim: To diagnose and analyze four main variables of urban ambience in central Passo Fundo, which were temperature, wind speed, humidity and environmental noise. Methodology: The methodology consisted initially in the definition of three core areas of the city (one with vegetation and two paved). The measurement of the variables was performed in the morning and afternoon shifts, when half the samples was collected in the shade and the other half, with sun exposure. Bioclimatic datasheets for characterization were filled out for each area characterization. Originality/Relevance : Besides the presented analysis being a proposal within the bioclimatic theory, the evaluation of spaces like squares and streets allows other elements of the local infrastructure to complement and to generate the necessary comfort for all the inhabitants. Main findings: In the paved areas there is a higher concentration of heat and noise both in the morning and in the afternoon. In addition, the humidity is higher in the area with vegetation and wind measurements did not show a pattern like the other items evaluated. Theoretical/methodological contributions: The research proved the importance of green areas in the city, both for climate balance and for the existence of points with a better urban environment for the population. Conclusion: Considering the characteristics of urban ambience in the public space, their importance for comfort and their relationship with urban planning, this study evaluated the existing microclimate in three pre-established locations in the city of Passo Fundo, located in the north of Rio Grande do Sul state, Brazil.

Published
2019

5. Stormwater management by microfiltration and ultrafiltration treatment

Author

Vandré Barbosa Brião, Abby Daniela Ortega Sandoval, Maria Tereza Friedrich, Vera Maria Cartana Fernandes, and Augusto Hemkemeier

Subjects
Pollution, Waste management, Continuous operation, Process Chemistry and Technology, Microfiltration, media_common.quotation_subject, 0208 environmental biotechnology, Stormwater, Ultrafiltration, Environmental engineering, 02 engineering and technology, Stormwater management, 010501 environmental sciences, 01 natural sciences, 020801 environmental engineering, Parking lot, Permeate flux, Environmental science, Safety, Risk, Reliability and Quality, Waste Management and Disposal, 0105 earth and related environmental sciences, Biotechnology, media_common
Abstract

This study evaluates stormwater management for use in non-potable activities and pollution control by microfiltration (MF) and ultrafiltration (UF). Stormwater was sampled in a parking lot. The permeate flux and removal rates of both membranes were evaluated in continuous operation tests. Permeate quality was compared to American, Australian, Spanish, and Brazilian guidelines. Both MF and UF membranes allow the adjustment of stormwater quality for toilet flushing and fire protection, and they have good performance in controlling pollution. UF has a better operation and removal performance and might be complementary with best management practices to obtain an overall better efficiency.

Published
2019

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