Exploració per autor "Valderrama Ángel, César Alberto"
Ara es mostren els items 105-124 de 157
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Recovery and separation of valuable metals (copper and zinc) from acidic mine waters by ion-exchange resins
Vecino Bello, Xanel; Reig i Amat, Mònica; López Rodríguez, Julio; Valderrama Ángel, César Alberto; Gibert Agulló, Oriol; Cortina Pallás, José Luís (2019)
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Accés obertMining wastewaters, containing heavy metals such as copper (Cu) and zinc (Zn), have a huge impact on the environment due to they are not biodegradable and tend to bioaccumulate in plants or living organisms. Therefore, in ... -
Recovery of ammonia from domestic wastewater effluents as liquid fertilizers by integration of natural zeolites and hollow fibre membrane contactors
Sancho Lacalle, Irene; Licon Bernal, Edxon Eduardo; Valderrama Ángel, César Alberto; de Arespacochaga, Nicolas; Lopez Palau, Silvia; Cortina Pallás, José Luís (2017-04-15)
Article
Accés obertThe integration of up-concentration processes to increase the efficiency of primary sedimentation, as a solution to achieve energy neutral wastewater treatment plants, requires further post-treatment due to the missing ... -
Recovery of ammonium and phosphate from treated urban wastewater by using potassium clinoptilolite impregnated hydrated metal oxides as N-P-K fertilizer
Guaya Caraguay, Diana Elizabeth; Hermassi, Mehrez; Valderrama Ángel, César Alberto; Farran Marsà, Adriana; Cortina Pallás, José Luís (2016-09-01)
Article
Accés obertA natural clinoptilolite in its potassium form (KNC) was modified by impregnation of hydrated metal oxides (HMO) of aluminium (III) (KAlC), iron (III) (KFeC) and manganese (IV) (KMnC) for the simultaneous ammonium and ... -
Recovery of ammonium by powder synthetic zeolites from wastewater effluents: optimization of the regeneration step
You Chen, Xialei; Valderrama Ángel, César Alberto; Querol Carceller, Xavier; Cortina Pallás, José Luís (2017-10-01)
Article
Accés obertNitrogen recovery and valorization is gaining interest due to the current need for nitrogen removal, so it is of great interest that ammonium-selective sorbents be evaluated. In this study, a zeolitic material synthesized ... -
Recovery of natural polyphenols from spinach and orange by-products by pressure-driven membrane processes
Montenegro Landivar, María Fernanda; Tapia Quirós, Paulina; Vecino Bello, Xanel; Reig i Amat, Mònica; Granados Juan, Mercè; Farran Marsà, Adriana; Cortina Pallás, José Luís; Saurina, Javier; Valderrama Ángel, César Alberto (Multidisciplinary Digital Publishing Institute (MDPI), 2022-06-28)
Article
Accés obertSpinach and orange by-products are well recognized for their health benefits due to the presence of natural polyphenols with antioxidant activity. Therefore, the demand to produce functional products containing polyphenols ... -
Recovery of nutrients (N-P-K) from potassium-rich sludge anaerobic digestion side-streams by integration of a hybrid sorption-membrane ultrafiltration process: Use of powder reactive sorbents as nutrient carriers
Hermassi, Mehrez; Valderrama Ángel, César Alberto; Gibert Agulló, Oriol; Moreno Palmerola, Natàlia; Querol Carceller, Xavier; Harrouch Batis, Narjes; Cortina Pallás, José Luís (2017-05-05)
Article
Accés obertHere, an alternative nutrient (N-P-K) recovery route from potassium-rich sludge anaerobic digestion side-streams using powder reactive sorbents (PRSs) is presented. In the first step, the optimum PRS system was determined ... -
Recovery of polyphenols from agro-industries wastes: Extraction studies
Tapia Quirós, Paulina; Montenegro-Landivar, Maria Fernanda; Reig i Amat, Mònica; Vecino Bello, Xanel; Valderrama Ángel, César Alberto; Cortina Pallás, José Luís; Granados Juan, Mercè; Saurina, Javier (2019)
Comunicació de congrés
Accés obert -
Recovery of rare Earth elements from acidic mine waters by integration of a selective chelating ion-exchanger and a solvent impregnated resin
Hermassi, Mehrez; Granados Juan, Mercè; Ayora Ibañez, Carlos; Cortina Pallás, José Luís; Valderrama Ángel, César Alberto (Elsevier, 2021-10)
Article
Accés obertA polymeric ion-exchange resin, incorporating methyl-amino-phosphonic (TP260) functionalities, and a solvent impregnated resin (SIR) incorporating tri-methylpentylphosphinic acid (TP272), were evaluated for the selective ... -
Recovery of rare earth elements from acidic mine waters: An unknown secondary resource
Valderrama Ángel, César Alberto; Cortina Pallás, José Luís; Granados Juan, Mercè; Ayora Ibañez, Carlos; Hermassi, Mehrez (Elsevier, 2022-03)
Article
Accés obertAcidic mine Drainage (AMD) is still considered one of the greatest mining sustainability challenges due to the large volumes of wastes generated and the high associated treatment cost. New regulation initiatives on sustainable ... -
Recovery of sulphuric acid and valuable metals (Zn, Cu and REE) from acidic mine waters using nanofiltration
López Rodríguez, Julio; Reig i Amat, Mònica; Vecino Bello, Xanel; Valderrama Ángel, César Alberto; Gibert Agulló, Oriol; Cortina Pallás, José Luís (2019)
Comunicació de congrés
Accés obertAcidic mine waters (AMWs) contains moderate concentrations of sulphuricacid, relatively high concentrations of metals (Al, Fe, Cu and Zn) and minor amounts or rare earth elements (REE). The established management routes ... -
RISCOS, SEGURETAT I TECNOLOGIA MEDIAMBIENTAL (Examen 2n quadrimestre, 1r parcial)
Valderrama Ángel, César Alberto (Universitat Politècnica de Catalunya, 2016-04-15)
Examen
Accés restringit a la comunitat UPC -
RISCOS, SEGURETAT I TECNOLOGIA MEDIAMBIENTAL (Examen 2n quadrimestre, 1r parcial)
Valderrama Ángel, César Alberto (Universitat Politècnica de Catalunya, 2014-04-08)
Examen
Accés restringit a la comunitat UPC -
RISCOS, SEGURETAT I TECNOLOGIA MEDIAMBIENTAL (Examen 2n quadrimestre, 1r parcial)
Valderrama Ángel, César Alberto (Universitat Politècnica de Catalunya, 2015-04-10)
Examen
Accés restringit a la comunitat UPC -
RISCOS, SEGURETAT I TECNOLOGIA MEDIAMBIENTAL (Examen 2n quadrimestre, 2n parcial)
Valderrama Ángel, César Alberto (Universitat Politècnica de Catalunya, 2015-06-17)
Examen
Accés restringit a la comunitat UPC -
RISCOS, SEGURETAT I TECNOLOGIA MEDIAMBIENTAL (Examen 2n quadrimestre, 2n parcial)
Valderrama Ángel, César Alberto (Universitat Politècnica de Catalunya, 2013-06-17)
Examen
Accés restringit a la comunitat UPC -
RISCOS, SEGURETAT I TECNOLOGIA MEDIAMBIENTAL (Examen 2n quadrimestre, 2n parcial)
Valderrama Ángel, César Alberto (Universitat Politècnica de Catalunya, 2014-06-16)
Examen
Accés restringit a la comunitat UPC -
RISCOS, SEGURETAT I TECNOLOGIA MEDIAMBIENTAL (Examen 2n quadrimestre, 2n quadrimestre)
Valderrama Ángel, César Alberto (Universitat Politècnica de Catalunya, 2012-06-13)
Examen
Accés restringit a la comunitat UPC -
Salinity gradient solar pond: Validation and simulation model
Bernad, Francesc; Casas Garriga, Sandra; Gibert Agulló, Oriol; Akbarzadeh, Aliakbar; Cortina Pallás, José Luís; Valderrama Ángel, César Alberto (2013-12)
Article
Accés restringit per política de l'editorialThis paper describes the development, validation and use of a design and simulation tool for modeling the performance of a salinity gradient solar pond. An experimental solar pond pilot plant was constructed in central ... -
Selectrodialysis and bipolar membrane electrodialysis combination for industrial process brines treatment: Monovalent-divalent ions separation and acid and base production
Reig i Amat, Mònica; Valderrama Ángel, César Alberto; Gibert Agulló, Oriol; Cortina Pallás, José Luís (2016-08-07)
Article
Accés obertChemical industries generate large amounts of wastewater rich in different chemical constituents. Amongst these, salts at high concentrations are of major concern, making necessary the treatment of saline effluents before ... -
Selectrodialysis and ion-exchange resins as integration processes for copper and zinc recovery from metallurgical streams containing arsenic
Reig i Amat, Mònica; Vecino Bello, Xanel; Hermassi, Mehrez; López Rodríguez, Julio; Valderrama Ángel, César Alberto; Gibert Agulló, Oriol; Cortina Pallás, José Luís (Springer, 2018)
Comunicació de congrés
Accés obert