Exploració per autor "Carrera Ramírez, Jesús"Més informació

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    • Multirate mass transfer simulation of denitrification in a woodchip bioreactor 

      Wang, Jingjing; Carrera Ramírez, Jesús; Valhondo González, Cristina; Saaltink, Maarten Willem; Petchamé Guerrero, Jordi; Zhang, Fengshou; Herbert, Roger (Elsevier, 2023-09)
      Article
      Accés obert
      Denitrifying woodchip bioreactors (DWBs) have proven to be an efficient nature-based solution for nitrate removal. Modeling DWBs is required for improving their design and operation, but is hindered by the complexity of ...

    • Numerical advances to simulate shear failure and tensile failure due to hydraulic fracturing operations 

      Gómez Castro, Berta María; De Simone, Silvia; Carrera Ramírez, Jesús (2017)
      Text en actes de congrés
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      In recent years, some geological applications like the CO2 storage or the hydraulic fracturing have attracted the attention not only of the scientific community but also of the general public. One of the reasons of the ...

    • Numerical formulation for a simulator (CODE_BRIGHT) for the coupled analysis of saline media 

      Olivella Pastallé, Sebastià; Gens Solé, Antonio; Carrera Ramírez, Jesús; Alonso Pérez de Agreda, Eduardo (MCB University Press, 1996)
      Article
      Accés obert
      Salt rocks are being considered as potential recipients for geologic disposal of nuclear waste because of their favourable hydraulic and mechanical properties. In essence, processes controlling the behaviour of salt rocks ...

    • Occurrence of carbamazepine and five metabolites in an urban aquifer 

      Jurado Elices, Anna; López Serna, Rebeca; Vázquez Suñé, Enric; Carrera Ramírez, Jesús; Pujades Garnes, Estanislao; Petrovic, Mira; Barceló Cullerés, Damià (2014-11-01)
      Article
      Accés restringit per política de l'editorial
      This paper deals with urban groundwater contaminated with carbamazepine (CBZ) and five of its human metabolites in Barcelona. Groundwater samples were accordingly collected in the aquifers of Poble Sec and Besos River ...

    • On the localization of chemical reactions in multicontinuum media 

      Wang, Jingjing; Carrera Ramírez, Jesús; Saaltink, Maarten Willem; Valhondo González, Cristina (Elsevier, 2022-09)
      Article
      Accés obert
      Reactive transport (RT) through heterogeneous media, may cause chemical heterogeneity if water flux is slow through portions of the medium. In such cases, chemical localization (i.e., the occurrence of reactions that would ...

    • PROOST: object-oriented approach to multiphase reactive transport modeling in porous media 

      Gamazo, Pablo; Slooten, Luit Jan; Carrera Ramírez, Jesús; Saaltink, Maarten Willem; Bea, Sergio Andres; Soler Guitart, Joan (2016-03)
      Article
      Accés obert
      Reactive transport modeling involves solving several nonlinear coupled phenomena, among them, the flow of fluid phases, the transport of chemical species and energy, and chemical reactions. There are different ways to ...

    • Radionuclide migration: coupling transport and chemistry 

      Carrera Ramírez, Jesús; Ayora Ibáñez, Carlos; Saaltink, Maarten Willem; Dentz, Marco (Woodhead Publishing Limited, 2012)
      Capítol de llibre
      Accés restringit per política de l'editorial

    • Reactive barriers for renaturalization of reclaimed water during soil aquifer treatment 

      Valhondo González, Cristina; Carrera Ramírez, Jesús; Martínez Landa, Lourdes; Wang, Jingjing; Almafitano, Stefano; LEvantesi, Caterina; Díaz Cruz, Sílvia (2020-04)
      Article
      Accés obert
      Managed aquifer recharge (MAR) is known to increase available water quantity and to improve water quality. However, its implementation is hindered by the concern of polluting aquifers, which might lead to onerous treatment ...

    • Reactive transport: a review of basic concepts with emphasis on biochemical processes 

      Carrera Ramírez, Jesús; Saaltink, Maarten Willem; Soler Sagarra, Joaquim; Wang, Jingjing; Valhondo González, Cristina (2022-02)
      Article
      Accés obert
      Reactive transport (RT) couples bio-geo-chemical reactions and transport. RT is important to understand numerous scientific questions and solve some engineering problems. RT is highly multidisciplinary, which hinders the ...

    • Remediación agua contaminada por mercurio y portlandita en Flix 

      Auria, Gonzalo; Ayora Ibáñez, Carlos; Díez, S.; Carrera Ramírez, Jesús (Fundación Centro Internacional de Hidrología Subterránea, 2016)
      Comunicació de congrés
      Accés obert
      Hace unos años se decidió descontaminar el embalse de Flix, afectado por vertidos de residuos por un empresa química durante todo el siglo pasado. •Los residuos formaron 4 lóbulos de sedimentos en el río, con elevadas ...

    • Reports de la recerca a Catalunya: enginyeria civil i enginyeria de la construcció 

      Aguado de Cea, Antonio; Carrera Ramírez, Jesús; Mañá Reixach, Fructuoso; Oñate Ibáñez de Navarra, Eugenio; Robusté Antón, Francesc (Institut d'Estudis Catalans, 2000)
      Llibre
      Accés obert
      L’any 1995, l’IEC acordà iniciar un projecte d’elaboració d’estudis periòdics sobre l’estat de la recerca a Catalunya, anomenat Reports de la recerca a Catalunya. Amb el suport de la Generalitat de Catalunya, i coordinat ...

    • Salinity is reduced below the evaporation front during soil salinization 

      Gran Esforzado, Meritxell; Carrera Ramírez, Jesús; Olivella Pastallé, Sebastià; Massana, Jordi; Saaltink, Maarten Willem; Ayora Ibáñez, Carlos; Lloret Morancho, Antonio (2009-11-01)
      Text en actes de congrés
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      La salinización de suelos es un problema global. Generalmente, la salinización es causada por el transporte de sales hacia la superficie por capilaridad y, a pesar de su importancia global, los mecanismos que la controlan ...

    • Semianalytical solution for CO2 plume shape and pressure evolution during CO2 injection in deep saline formations 

      Vilarrasa Riaño, Víctor; Carrera Ramírez, Jesús; Bolster, Diogo; Dentz, Marco (2013-01-16)
      Article
      Accés restringit per política de l'editorial
      The injection of supercritical carbon dioxide (CO2) in deep saline aquifers leads to the formation of a CO2 rich phase plume that tends to float over the resident brine. As pressure builds up, CO2 density will increase ...

    • Simulación numérica de flujo y transporte de la laguna de Fuente de Piedra en condiciones extremas de densidad variable 

      Montalvan, Franciso Javier; Heredia Díaz, Javier; Elorza Tenreiro, Francisco Javier; Hidalgo, Juan J.; Carrera Ramírez, Jesús (Universidad Politécnica de Valencia, 2014)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      La laguna de la Fuente de Piedra es un humedal con un alto valor ecológico, fue declarada Reserva Natural y ha sido un de los tres primeros humedales de España en incorporarse al convenio de Ramsar. La laguna (13Km2) se ...

    • Simulation of chemical reaction localization using a multi-porosity reactive transport approach 

      Soler Sagarra, Joaquim; Luquot, Linda; Martínez Pérez, Laura; Saaltink, Maarten Willem; Gaspari, Francesca de; Carrera Ramírez, Jesús (John Gale, 2016-05)
      Article
      Accés obert
      Results of reactive transport laboratory experiments often suggest that pore scale heterogeneity induces localization of reactions (the generation of local micro environments favoring reactions that would not occur in a ...

    • Six artificial recharge pilot replicates to gain insight into water quality enhancement processes 

      Valhondo González, Cristina; Martínez Landa, Lourdes; Carrera Ramírez, Jesús; Díaz Cruz, Sílvia; Amalfitano, Stefano; Levantesi, Caterina (2020-02)
      Article
      Accés obert
      The processes that control water quality improvement during artificial recharge (filtering, degradation, and adsorption) can be enhanced by adding a reactive barrier containing different types of sorption sites and promoting ...

    • Stochastic simulation of daily rainfall fields conditioned on atmospheric circulation patterns and orographic effects. 

      Sapriza Azuri, Gonzalo; Jódar Bermúdez, Jorge; Gupta, Hoshi V.; Carrera Ramírez, Jesús (Universitat Politècnica de València, 2012)
      Text en actes de congrés
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      The objective of the current work is to present a methodology for simulation of stochastic spatial distributed rainfall fields at the daily time step. For this purpose, we develop a geo-stochastic rainfall generating process ...

    • Stochastic simulation of nonstationary rainfall fields, accounting for seasonality and atmospheric circulation pattern evolution 

      Sapriza Azuri, Gonzalo; Jódar Bermúdez, Jorge; Carrera Ramírez, Jesús; Gupta, Hoshin Vijai (2013-07-01)
      Article
      Accés restringit per política de l'editorial
      A model for generating daily spatial correlated rainfall fields suitable for evaluating the impacts of climate change on water resources is presented. The model, termed Stochastic Rainfall Generating Process, is designed ...

    • Structural geology and geophysics as a support to build a hydrogeologic model of granite rock 

      Martínez Landa, Lourdes; Carrera Ramírez, Jesús; Perez Estaun, A.; Gomez, Paloma; Bajos, Carmen (2016)
      Article
      Accés obert
      A method developed for low-permeability fractured media was applied to understand the hydrogeology of a mine excavated in a granitic pluton. This method includes (1) identifying the main groundwater-conducting features of ...

    • Temperature driven vapor fluxes in soils cause a net recharge 

      Gran Esforzado, Meritxell; Saaltink, Maarten Willem; Dandar, Enkhbayar; Carrera Ramírez, Jesús (2017)
      Comunicació de congrés
      Accés obert
      Temperature gradients can drive vapor diffusion by controlling vapor pressure in the soil. We studied vapor diffusion for soils in two different climates: A semiarid climate at El Cabril (Córdoba, Spain) and a subarctic ...