Exploració per autor "Valderrama Ángel, César Alberto"
Ara es mostren els items 15-34 de 157
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Cadmium and lead removal from aqueous solution by grape stalk wastes: modeling of a fixed-bed column
Miralles Esteban, Núria; Valderrama Ángel, César Alberto; Casas Pons, Ignasi; Martínez Martínez, María del Rosario; Florido Pérez, Antonio (2010-09)
Article
Accés obertGrape stalk wastes generated in the wine production process were used for the removal of cadmium and lead ions from aqueous solutions. The experimental breakthrough curves (BTC) were obtained from fixedbed columns. ... -
Characterization of chromium (III) removal from aqueous solutions by an immature coal (leonardite). Toward a better understanding of the phenomena involved
Lao Luque, Concepción; Solé Sardans, Maria Montserrat; Gamisans Noguera, Javier; Valderrama Ángel, César Alberto; Dorado Castaño, Antonio David (2014-01)
Article
Accés obertRemoval of chromium (III) from aqueous solutions by leonardite (a low-cost adsorbent) was studied in a series of batch experiments. Stabilization of the adsorbent material with alginate beads was also investigated. The ... -
Comparative LCA of sewage sludge valorisation as both fuel and raw material substitute in clinker production
Valderrama Ángel, César Alberto; Granados, Ricard; Cortina Pallás, José Luís; Martínez Gasol, Carles; Guillem, Manel; Josa Garcia-Tornel, Alejandro (Elsevier, 2013-07-15)
Article
Accés restringit per política de l'editorialA life cycle assessment to evaluate the environmental impact of urban sewage sludge use as alternative fuel or raw material in clinker production was carried out. In order to quantify in detail the overall environmental ... -
Concentration of NaCl from seawater reverse osmosis brines for the chlor-alkali industry by electrodialysis
Reig i Amat, Mònica; Casas Garriga, Sandra; Aladjem, Carlos; Valderrama Ángel, César Alberto; Gibert Agulló, Oriol; Valero Cervera, Fernando; Miguel Centeno, Carlos; Larrotcha, Enric; Cortina Pallás, José Luís (2014-06-02)
Article
Accés restringit per política de l'editorialCurrently, numerous studies are focused on the valorisation of seawater desalination reverse osmosis brines. Electrodialysis can be used to concentrate one of the primary components (NaCI) and obtain a suitable raw material ... -
CONTAMINACIÓ ATMOSFÈRICA I TECNOLOGIES DE TRACTAMENT (Examen 2n quadrimestre, 1r parcial)
Valderrama Ángel, César Alberto (Universitat Politècnica de Catalunya, 2016-04-08)
Examen
Accés restringit a la comunitat UPC -
CONTAMINACIÓ ATMOSFÈRICA I TECNOLOGIES DE TRACTAMENT (Examen 2n quadrimestre, 1r parcial)
Valderrama Ángel, César Alberto (Universitat Politècnica de Catalunya, 2013-04-12)
Examen
Accés restringit a la comunitat UPC -
CONTAMINACIÓ ATMOSFÈRICA I TECNOLOGIES DE TRACTAMENT (Examen 2n quadrimestre, 1r parcial)
Valderrama Ángel, César Alberto (Universitat Politècnica de Catalunya, 2014-04-03)
Examen
Accés restringit a la comunitat UPC -
CONTAMINACIÓ ATMOSFÈRICA I TECNOLOGIES DE TRACTAMENT (Examen 2n quadrimestre, 1r parcial)
Valderrama Ángel, César Alberto (Universitat Politècnica de Catalunya, 2015-04-16)
Examen
Accés restringit a la comunitat UPC -
CONTAMINACIÓ ATMOSFÈRICA I TECNOLOGIES DE TRACTAMENT (Examen 2n quadrimestre, 1r parcial)
Valderrama Ángel, César Alberto (Universitat Politècnica de Catalunya, 2012-04-20)
Examen
Accés restringit a la comunitat UPC -
CONTAMINACIÓ ATMOSFÈRICA I TRACTAMENT DE GASOS (2n quadrimestre, 1 parcial)
Valderrama Ángel, César Alberto (Universitat Politècnica de Catalunya, 2011-04-12)
Examen
Accés restringit a la comunitat UPC -
CONTAMINACIÓ ATMOSFÈRICA I TRACTAMENT DE GASOS (2n quadrimestre, 2n parcial)
Valderrama Ángel, César Alberto (Universitat Politècnica de Catalunya, 2011-06-08)
Examen
Accés restringit a la comunitat UPC -
Cr(III) removal from aqueous solutions: a straaightforward model approaching of the adsorption in a fixed-bed column
Dorado Castaño, Antonio David; Gamisans Noguera, Javier; Valderrama Ángel, César Alberto; Solé Sardans, Maria Montserrat; Lao Luque, Concepción (2014-02-07)
Article
Accés obertPrediction of breakthrough curves for continuous sorption characterization is generally performed by means of simple and simplified equations. These expressions hardly have any physical meaning and, also do not allow ... -
Design, construction, and operation of the first industrial salinity-gradient solar pond in Europe: An efficiency analysis perspective
Alcaraz Segura, Aurora; Montalà Palau, Montserrat; Cortina Pallás, José Luís; Akbarzadeh, Aliakbar; Aladjem, Carlos; Farran Marsà, Adriana; Valderrama Ángel, César Alberto (2018-04)
Article
Accés obertA 500 m2 industrial salinity-gradient solar pond (SGSP) was constructed in a mineral processing plant (Solvay Minerales) in Granada (Spain). This renewable energy technology was designed to supply a low-temperature heat ... -
Detrimental effects of magnesium (II) on hydroxyapatite precipitation from synthetic industrial brines
Hermassi, Mehrez; Valderrama Ángel, César Alberto; Dosta, Joan; Cortina Pallás, José Luís; Batis, Narjes (Elsevier, 2016)
Article
Accés obertThe influence of Mg(II) on phosphorous recovery as hydroxyapatite (Hap) from alkaline phosphate concentrates using desalinated industrial brines as the calcium source in a batch reactor was evaluated. Two synthetic brines ... -
Effect of Mn2+/Zn2+/Fe3+ Oxy(Hydroxide) nanoparticles doping onto Mg-Al-LDH on the phosphate removal capacity from simulated wastewater
Guaya, Diana; Cobos, Hernán; Valderrama Ángel, César Alberto; Cortina Pallás, José Luís (2022-10-01)
Article
Accés obertA parent Mg-Al-LDH was upgraded in its adsorption properties due to the incorporation of tri-metal species oxy(hydroxide) nanoparticles obtaining Mn2+/Zn2+/Fe3+/Mg-Al-LDH composite for the phosphate recovery from simulated ... -
Efficient NH3-N recovery from municipal wastewaters via membrane hybrid systems: Nutrient-Energy-Water (NEW) nexus in circular economy
Sheikh, Mahdi; Harami, Hossein Riasat; Rezakazemi, Mashallah; Valderrama Ángel, César Alberto; Cortina Pallás, José Luís; Aminabhavi, Tejraj M. (Elsevier, 2023-06-01)
Article
Accés restringit per política de l'editorialIn the present-day scenario, conventional wastewater treatment technologies for effectively removing ammonia (NH3) from municipal/domestic wastewater sparked a major worldwide issue, which could be of fundamental matter ... -
Energy, exergy and thermoeconomic analysis of an industrial solar pond
Montalà, M.; Ganesan, Kishore; Casal, O.; Cortina Pallás, José Luís; Santarelli, Massimo; Valderrama Ángel, César Alberto (2022-08)
Article
Accés obertThis study evaluates the viability of an industrial salinity gradient solar pond during two operating seasons (2014 and 2015). The Granada solar pond was built to supply low-temperature heat (up to 60 °C) to satisfy the ... -
Enhancing the efficiency of solar pond heat extraction by using both lateral and bottom heat exchangers
Alcaraz Segura, Aurora; Valderrama Ángel, César Alberto; Cortina Pallás, José Luís; Akbarzadeh, Aliakbar; Farran Marsà, Adriana (2016-09)
Article
Accés obertIn this study, heat extraction from both the gradient and heat storage zones of a salinity-gradient solar pond (SGSP) has been evaluated. For this purpose, an experimental solar pond pilot plant was constructed in 2009 in ... -
Environmental and economic evaluation of implementing membrane technologies and struvite crystallisation to recover nutrients from anaerobic digestion supernatant
Vinardell Cruañas, Sergi; Cortina Pallás, José Luís; Valderrama Ángel, César Alberto (Elsevier, 2023-09-01)
Article
Accés restringit per política de l'editorialThe present study investigates the environmental and economic feasibility of implementing membrane technologies and struvite crystallisation (SC) for nutrient recovery from the anaerobic digestion supernatant. To this end, ... -
Evaluating the integration of nanofiltration membranes in advanced water reclamation schemes using synthetic solutions: From phosphorous removal to phosphorous circularity
López Rodríguez, Julio; Reig i Amat, Mònica; Licon Bernal, Edxon Eduardo; Valderrama Ángel, César Alberto; Gibert Agulló, Oriol; Cortina Pallás, José Luís (2022-06)
Article
Accés restringit per política de l'editorialThe more stringent regulations related to the reduction of residual phosphorous concentration in treated wastewater and the consideration of phosphorous as a critical raw material are boosting new technologies towards its ...