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Browsing Centros UC by Subject "06 Agua limpia y saneamiento"
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- ItemA composite indicator approach to assess the sustainability and resilience of wastewater management alternatives(2020) Sun, Y.; Garrido Baserba, M.; Molinos Senante, María; Donikian, N. A.; Poch, M.; Rosso, D.; CEDEUS (Chile)
- ItemA comprehensive evaluation of pedotransfer functions for predicting soil water content in environmental modeling and ecosystem management(2018) Contreras, Cristina P.; Bonilla Meléndez, Carlos Alberto; CEDEUS (Chile)
- ItemA Dynamic, Multivariate Sustainability Measure for Robust Analysis of Water Management under Climate and Demand Uncertainty in an Arid Environment(2015) Hunter Cure, Christian Kent; Gironás León, Jorge Alfredo; CEDEUS (Chile)
- ItemA GIS-based urban and peri-urban landscape representation toolbox for hydrological distributed modeling(2017) Sanzana Cuevas, Pedro Pablo; Gironás León, Jorge Alfredo; Brand, I.; Branger, F.; Rodríguez, F.; Vargas, X.; Hitschfeld, N.; Muñoz Pardo, José Francisco; Vicuña, Sebastián; Mejía, A.; Jankowski, S.; CEDEUS (Chile)
- ItemA model for simulating the performance and irrigation of green stormwater facilities at residential scales in semiarid and Mediterranean regions(2017) Herrera, J.; Bonilla Meléndez, Carlos Alberto; Castro, L.; Vera Araya, Sergio Eduardo; Reyes, R.; Gironás León, Jorge Alfredo; CEDEUS (Chile)
- ItemA new aerobic chemolithoautotrophic arsenic oxidizing microorganism isolated from a high Andean watershed(2018) Anguita, Javiera M.; Rojas, Claudia; Pastén González, Pablo Arturo; Vargas Cucurella, Ignacio Tomás; CEDEUS (Chile)
- ItemA new method for sensing soil water content in green roofs using plant microbial fuel cells(2018) Tapia, N. F.; Rojas, C.; Bonilla Meléndez, Carlos Alberto; Vargas, I. T.; CEDEUS (Chile)
- ItemA numerical model for linking soil organic matter decay and wildfire severity(2021) Aedo Quililongo, Sebastián Alejandro; Bonilla Meléndez, Carlos Alberto; CEDEUS (Chile)Wildfires are a critical phenomenon in terrestrial ecosystems, and the intensity and frequency of these events have increased in recent years. High temperatures in the topsoil during wildfires can induce changes in soil physical, chemical, and biological properties due to the loss of soil organic matter (SOM). Therefore, the main objective of this study was to develop a numerical model to predict SOM decay during wildfire events. The model identifies the main parameters controlling SOM decay and predicts its decline by coupling the energy balance for soil heating and species conservation for water and SOM using high temperature-induced vaporization and combustion kinetics. Fluid flow was not included; however, the radiative energy conducted through soil pores was incorporated as a volumetric pore radius function. When the radiative term in the thermal conductivity was not considered, the model predicted the soil thermal evolution with a determination coefficient r(2) > 0.91 and with an r(2) > 0.98 when the volumetric pore radius was adjusted. The main parameters controlling SOM decay were soil texture, oxygen availability, and initial soil water and SOM contents. SOM decay was also dependent on the wildfire temperature and exposure time. In terms of soil texture, SOM decay increases as sand increases or clay reduces. The main results showed that the soil water content controlled the amount of heat consumed during vaporization, the normalized SOM decay does not depend on the initial SOM content, and the restricted oxidation limited SOM decay. Finally, this study reduces the number of parameters when studying SOM decay and second-order fire effects for post-fire assessment and restoration. Also, because it provides a better understanding of how wildfires affect SOM, implemented as an additional routine, the model can enhance other existing computer models for describing ecological processes.
- ItemA rule-based approach for preventive identification of potential conflictive criteria in mining operations in Chile(2018) Ocampo-Melgar, Anahi; Gironás León, Jorge Alfredo; Valls, Aida; CEDEUS (Chile)
- ItemA stochastic meta-frontier approach for analyzing productivity in the English and Welsh water and sewerage companies(2023) Molinos Senante, María; Maziotis, Alexandros; CEDEUS (Chile)Within the water industry, some water companies provide both water and sanitation services whereas other just water services. Assuming a common technology of different types of water companies may lead to biased estimates of performance. To deal with the problem of incomparability of heterogeneous water companies, the metafrontier approach was employed. A stochastic metafrontier approach was employed to estimate and compare the productivity change of the English and Welsh Water and Sewerage companies (WaSCs) and Water only companies (WoCs) during the years 1991–2016. To identify the drivers of productivity growth, the metafrontier Malmquist productivity was decomposed into four components namely: Group-frontier efficiency change, group-frontier technological change, efficiency catch-up and technological catch-up. The results indicate that over the entire period industry productivity slightly increased by 1.5% per year on average with WoCs performing slightly better than WaSCs. Group-frontier efficiency change, group-frontier technological change and technological catch-up contributed positively to metafrontier productivity growth, whereas the temporal changes of efficiency catch-up have been the source of deterioration.
- ItemA stochastic model of streamflow for urbanized basins(2014) Mejía, A.; Daly, E.; Rossel, F.; Jovanovic, T.; Gironás León, Jorge Alfredo; CEDEUS (Chile)
- ItemA transient model for temperature prediction in a salt-gradient solar pond and the ground beneath it(2017) Amigo, J.; Meza, Francisco Javier; Suárez, F.; CEDEUS (Chile)
- ItemAcid Water Neutralization Using Microbial Fuel Cells: An Alternative for Acid Mine Drainage Treatment(2016) Leiva, Eduardo; Leiva Aravena, Enzo; Vargas Cucurella, Ignacio Tomás; CEDEUS (Chile)
- ItemActual Evapotranspiration Estimates in Arid Cold Regions Using Machine Learning Algorithms with In Situ and Remote Sensing Data(2021) Josefina Mosre; Suarez Poch, Francisco; CEDEUS (Chile)
- ItemAguas grises: Aportes de cedeus sobre tecnologías de tratamiento, percepción social y desarrollo de normativas en chile – Parte 1(Centro de Desarrollo Urbano Sustentable, 2024) Gallardo, Carlos; Vargas, Ignacio; Gironás, Jorge; Molinos, María; Bertoli, Rodolfo; CEDEUS (Chile)Actualmente en Chile el ciclo urbano del agua se basa principalmente en sistemas convencionales centralizados de suministro y tratamiento de agua. Uno de los principales desafíos para las ciudades chilenas es implementar el uso de fuentes alternativas de agua. Un ejemplo de lo anterior es el reúso de aguas grises recuperadas a través de sistemas de tratamientos descentralizados energéticamente sustentables. Dado que las aguas grises corresponden aproximadamente a un 60% de las aguas usadas en un hogar, su tratamiento y reúso seguro emergen como una oportunidad relevante para el desarrollo sustentable de las ciudades chilenas.
- ItemAguas grises: Aportes de cedeus sobre tecnologías de tratamiento, percepción social y desarrollo de normativas en Chile – Parte 2(Centro de Desarrollo Urbano Sustentable, 2024) Gallardo, Carlos; Vargas, Ignacio; Gironás, Jorge; Molinos, María; Bertoli, Rodolfo; CEDEUS (Chile)El presente documento se enmarca en investigaciones realizadas por CEDEUS sobre la percepción pública respecto al reúso de aguas grises en Santiago de Chile y las contribuciones y avances en el desarrollo de nuevas normas chilenas referidas al reúso de aguas
- ItemAn experimental and numerical study of evaporation reduction in a salt-gradient solar pond using floating discs(2017) Silva, Cristóbal; González, Daniel; Suárez Poch, Francisco Ignacio; CEDEUS (Chile)
- ItemAn Unsaturated/Saturated Coupled Hydrogeological Model for the Llamara Salt Flat, Chile, to Investigate Prosopis tamarugo Survival(2019) Alex Samuel; Nicole Blin; José F. Muñoz; Suarez Poch, Francisco; CEDEUS (Chile)
- ItemAnthropogenic controls from urban growth on flow regimes(2015) Mejia, Alfonso; Rossel, Florian; Gironás León, Jorge Alfredo; CEDEUS (Chile)
- ItemAportes y desafíos del Sistema de Evaluación de Impacto Ambiental (SEIA) a la conservación de la biodiversidad en Chile(Interuniversity Institute of Geography and University of Alicante, 2019) Henríquez Ruiz, Cristian Gonzalo; CEDEUS (Chile); Pontificia Universidad Católica de Chile. Instituto de GeografíaEnvironmental impact assessment systems are preventive management instruments whose main objective is to include environmental considerations in the processes and activities accompanying economic growth in a nation. The influence of these systems in the conservation of biodiversity is fundamental, since within the evaluation process, they enable identifying and evaluating potential environmental impacts, as well as defining reparations, compensations, or mitigations. Halting the loss of biodiversity caused by human activities and climate change is a global objective. Chile is also facing this challenge, considering its status of Biodiversity Hotspot, projections associated with climate change, and the outstanding issues that the Environmental Impact Assessment System (SEIA) shows regarding biodiversity conservation. The latest, based on the lack of strategic view when considering issues such as the territorial scope of the environmental impacts generated by the projects, under a systemic and transversal approach. This research analyses the main changes experienced since the creation of SEIA, and compares this system with other evaluation systems used in Latin America. National statistics on investment projects potentially affecting the conservation of biodiversity are given. Two issues are addressed to guide discussion of the operational changes that should be encouraged by the Chilean government, namely: 1) internalising the importance of protecting biodiversity beyond current regulations, and; 2) introducing improvements in environmental legislation that could indirectly lead to improvements in SEIA. The research concludes on the importance of strengthening the Strategic Environmental Assessment (SEA) and its integration with the SEIA, in order to encourage better project designs by including sustainability from the beginning.