Exploració per tema "Environmental chemistry"

Ara es mostren els items 1-20 de 30

    • An Improved system for modelling Spanish emissions: HERMESv2.0 

      Guevara Vilardell, Marc; Martínez Palau, Francesc; Arevalo Roa, Gustavo; Gassó Domingo, Santiago; Baldasano Recio, José María (2013-12)
      Article
      Accés restringit per política de l'editorial
      Emission models play a key role in the development of high-resolution air quality modelling systems AQMS.To minimise the uncertainty presented by these models,it is essential to match the highresolution requirements of ...

    • Analysis of ground-based Rn-222 measurements over Spain: filling the gap in southwestern Europe 

      Grossi, Claudia; Agueda Costafreda, Alba; Vogel, Felix; Vargas Drechsler, Arturo; Zimnoch, M.; Wach, P.; Martín, J. E.; López Coto, Israel; Bolívar Raya, Juan Pedro; Morguí, Josep Anton; Rodó, Xavier (2016-09-27)
      Article
      Accés obert
      Harmonized atmospheric 222Rn observations are required by the scientific community: these data have been lacking in southern Europe. We report on three recently established ground-based atmospheric 222Rn monitoring stations ...

    • Assessment of two-stage anaerobic digestion of blackwater and kitchen waste for reducing environmental impact of residential buildings 

      Rey Matínez, Natalia; Rodríguez Alegre, Rubén; You Chen, Xialei (Elsevier, 2023-06)
      Article
      Accés obert
      In recent years, much attention has been directed towards municipal waste management since these residues has become a global challenge with increasing public health, environmental, social, and economic costs. Therefore, ...

    • Bioacumulación de ingredientes de cremas solares en fauna marina de bancos naturales, de interés económico en Perú 

      Flores Haqquehua, Flor De María (Universitat Politècnica de Catalunya, 2015-09)
      Projecte Final de Màster Oficial
      Accés restringit per decisió de l'autor

    • Biotrickling filters for biogas sweetening: oxygen transfer improvement for a reliable operation 

      Rodriguez Mary, Ginesta; Dorado Castaño, Antonio David; Fortuny Picornell, Marc; Gabriel Buguña, David; Gamisans Noguera, Javier (2014)
      Article
      Accés obert
      An industrial-scale biotrickling filter for the removal of high concentrations of H2S is described in this work. The system has been operating at H2S inlet concentrations between 1000 and 3000 ppmv at acidic conditions. A ...

    • Characterization of airborne particulate matter and its toxic and proarrhythmic effects: A case study in Aburrá Valley, Colombia 

      Palacio, Laura Carolina; Durango Giraldo, Geraldine; Zapata Hernandez, Camilo; Santa González, Gloria; Uribe, Diego; Saiz Rodríguez, Francisco Javier; Buitrago Sierra, Robison; Tobón, Catalina (Elsevier, 2023-08-29)
      Article
      Accés obert
      Particle matter (PM) is a complex mixture of particles suspended in the air, mainly caused by fuel combustion from vehicles and industry, and has been related to pulmonary and cardiovascular diseases. The Metropolitan Area ...

    • CO2 capture and conversion: A homemade experimental approach 

      Acuña Girault, Adalberto; Gómez del Campo Rábago, Ximena; Contreras Ruiz, Marco Antonio; Ibanez, Jorge G. (OmniaScience, 2022-07)
      Article
      Accés obert
      During the SARS-2-Covid pandemic our institution sought to continue the teaching and learning of experimental laboratories by designing, assembling, and delivering a microscale chemistry kit to the students’ homes. Thanks ...

    • Degradació electroquímica del CFC-113 

      Mate Alonso, Elena; Espinar Subirats, Jordi (Universitat Politècnica de Catalunya, 2003-06)
      Projecte/Treball Final de Carrera
      Accés obert
      Els CFCs són uns compostos organoclorats que, si s'alliberen a l'atmosfera, són capaços de produir la destrucció de l'ozó, contribuint així al fenomen de formació del forat de la capa d'ozó. Això és degut a que són molt ...

    • Desenvolupament d’un model basat en la lògica difusa per a l’avaluació del risc dels retardants de flama bromats en ecosistemes aquàtics d’Amèrica Llatina 

      Pujolasus i Fructuoso, Edgar (Universitat Politècnica de Catalunya, 2011-04)
      Projecte/Treball Final de Carrera
      Accés obert
      Aquest estudi, en el qual s'ha desenvolupat un model per a l'avaluació del risc ambiental que generen els retardants de flama bromats (BFRs) en els organismes aquàtics de dos ecosistemes d'Amèrica Llatina, està vinculat ...

    • Eliminació de NOx mitjançant absorbents regenerables 

      Rivas Redondo, Alejandro (Universitat Politècnica de Catalunya, 2019-05-22)
      Treball Final de Grau
      Accés restringit per decisió de l'autor
      Els processos industrials que depenen de l’energia obtinguda a partir de la combustió de combustibles fòssils tenen com a conseqüència l’aparició de diversos subproductes molt nocius tant pel medi ambient com per la salut ...

    • Environmental management tools for ports 

      Darbra Roman, Rosa Maria; Journée, H; Wooldridge, C.F. (2012)
      Text en actes de congrés
      Accés obert
      Ports are very complex systems from the point of view of environment. In fact, the very existence of the port, as well as any expansion of its installations, implies a certain loss of habitat. Furthermore, the normal ...

    • Environmental Risk Assessment of Polybrominated Diphenyl Ether (PBDE) and Hexabromocyclododecane (HBCD) in Ebro River Basin 

      Betrò, Stefano (Universitat Politècnica de Catalunya, 2011-02)
      Projecte/Treball Final de Carrera
      Accés obert
      In this study, a model for the evaluation of the environmental risk of polybrominated diphenyl ethers (PBDEs) and hexabromocyclododecane (HBCD) for the aquatic organisms has been developed. These compounds are brominated ...

    • Estudi dels components i propietats químiques de les plantes del bosc 

      Casals Chavarria, Antoni (Universitat Politècnica de Catalunya, 2020-07-16)
      Treball Final de Grau
      Accés restringit per decisió de l'autor
      Aquest treball tracta de l'estudi dels compostos químics que contenen les plantes del bosc i de les moltes aplicacions que poden tenir. Primer de tot es fa una breu exposició teòrica de quins són els diferents tipus de ...

    • Exploring the influence of land use on the urban carbonyl sulfide budget: a case study of the metropolitan area of Barcelona 

      Estruch, Carme; Belviso, Sauveur; Badia Moragas, Alba; Vidal Canedo, Veronica; Curcoll Masanes, Roger; Udina Sistach, Mireia; Grossi, Claudia; Morguí, Josep-Anton; Segura, Ricard; Ventura Caballé, Sergi; Sola Salvatierra, Yolanda; Villalba Mendez, Gara (John Wiley & sons, 2023-12-19)
      Article
      Accés obert
      Carbonyl sulfide (OCS) is used to quantify the carbon capture potential of the biosphere because of its direct correlation with CO2 uptake during photosynthesis. However, to constrain the urban biosphere signal, it is ...

    • First estimation of CH4fluxes using the222Rn Tracer Method over the central Iberian Peninsula 

      Grossi, Claudia; Vogel, Felix; Morguí, Josep Anton; Curcoll Masanes, Roger; Agueda Costafreda, Alba; Batet Torrell, Óscar; Nofuentes, Manel; Occhipinti, Paola; Vargas Drechsler, Arturo; Rodó, Xavier (WIT Press, 2014)
      Text en actes de congrés
      Accés obert
      Emissions of CH4 over the central Iberian Peninsula have been estimated experimentally for the first time using the Radon Tracer Method (RTM), which uses the atmospheric noble radioactive gas 222Rn as an auxiliary tracer. ...

    • Impact of HONO sources on the performance of mesoscale air quality models 

      Gonçalves Ageitos, María; Dabdubd, D.; Chang, W.L.; Jorba Casellas, Oriol; Baldasano Recio, José María (2012)
      Article
      Accés obert
      Nitrous acid (HONO) photolysis constitutes a primary source of OH in the early morning, which leads to changes in model gas-phase and particulate matter concentrations. However, state-of-the-art models of chemical ...

    • Inter-comparison of commercial continuous radon monitors responses 

      Radulescu, Ileana; Calin, M. R.; Luca, A.; Röttger, Annette; Grossi, Claudia; Done, Laurentiu; Ioan, M. R. (2022-01)
      Article
      Accés obert
      Indoor and outdoor (atmospheric) radon activity concentrations need to be measured as accurate as possible for radiation protection and for climate applications. Particularly radon concentrations below 100 Bq m -3, useful ...

    • Intercomparison study of atmospheric 222Rn and 222Rn progeny monitors 

      Grossi, Claudia; Chambers, Scott Dudley; Vogel, Felix; Vargas Drechsler, Arturo (2020-05-08)
      Article
      Accés obert
      The use of the noble gas radon (222Rn) as a tracer for different research studies, for example observation-based estimation of greenhouse gas (GHG) fluxes, has led to the need of high-quality 222Rn activity concentration ...

    • La química del bosc 

      Calsina Rodriguez, Oriol (Universitat Politècnica de Catalunya, 2020-07-16)
      Treball Final de Grau
      Accés restringit per decisió de l'autor
      El present treball pretén demostrar la importància del bosc en les nostres vides i també demostrar que la química està present en tots els productes derivats del bosc. Els boscos són indispensables per la supervivència ...

    • Modelling of the photo-Fenton process with flexible hydrogen peroxide dosage: Sensitivity analysis and experimental validation 

      Nasr Esfahani, Kourosh; Pérez Moya, Montserrat; Graells Sobré, Moisès (Elsevier, 2022-09-15)
      Article
      Accés obert
      The supply of hydrogen peroxide (H2O2) controlling the amount of highly oxidant hydroxyl radicals is the most critical operational issue for the photo-Fenton process. Accordingly, this study addresses the development of a ...