The role of advanced waste-To-energy technologies in landfill mining

Publicado en: WIT Transactions on Ecology and the Environment, Volume 224, Issue 1, 20 September 2017, Pages 403-409Recently, the European Parliament has decided to include a specific reference to "Enhanced Landfill Mining" (ELFM) in the Landfill Directive proposing a regulatory framework for ELFM so as to permit the retrieval of secondary raw materials that are present in existing landfill sites. Recent studies are supporting ELFM since they consider that landfill mining would be economically feasible only if combined with energy recovery (i.e., waste-To-energy, WtE) and if a wide range of materials are recovered (i.e., waste-To-materials, WtM). In this study, a combined material (landfill mining) and energy (advanced WtE) recovery is proposed where the excavated waste (MSW refuse) can be directly recycled or pretreated and used in the production of refuse-derived fuel (RDF) for an advanced (gasification-based) WtE plant producing power and heat. Both material and energy recovery are challenging in the circular economy since contributes to a loop-closing objective in human activities. An exhaustive assessment of each particular landfill site must be carried out in order to determine the profitability of the ELFM.Ministerio de Economía y Competitividad ENE2012-31598Ministerio de Ciencia, Innovación y Universidades CTM2016-78089-RUniversidad de Sevilla Contrato de Acceso al Sistema Español de Ciencia, Tecnología e Innovación (VPPI-US

El apocalipsis doméstico: el fin del mundo según Jaume Balagueró

Jaume Balagueró's cinematography is directly connected with Adam Parfrey´s  concept of "Apocalypse Culture". It is a very personal vision of the end of the world in everyday life context. This author´s cinema does not show dystopian environments or collapsing societies or major natural disasters, on the contrary, the apocalypse born  indoors. Balagueró builds his peculiar vision of the end of the world from his fondness for the dark and millenarian spirit. His works address from a gloomy and ugliness aesthetics more rooted in human society such as death, ancestral rites, as something immovable, the pursuit of primal evil as overcoming of conventional religions. This paper aims to analyze the aesthetic, discursive and stylistic constacts that define the Jaume Balagueró´s cinema as apocalypse films, in which converge the classic and modern into what we call the Nova Escola de Barcelona

Approximate Prediction of Gas-Solid Conversion in Fluidized Bed Reactors

A simple method is proposed to evaluate the performance of fluidized bed reactors where an nth-order gas-solid reaction occurs. The method takes into account the fluid dynamics of the fluidized bed by a two-phase flow model and the rates of diffusion in the solid reactant particles (internal and external) by a simple particle model. Approximate analytical expressions are derived in terms of three effectiveness factors: interphasic, external and intraparticle. These account for the contribution of fluid-dynamic and diffusional resistances to the overall mass-transfer resistance. Gas conversion is expressed in terms of four dimensionless governing quantities and the reaction order, in this way facilitating computations. Limiting cases of the general solution are discussed by comparison with analytical solutions found in literature. The methodology can be applied to catalytic or non-catalytic systems under isothermal conditions, where one heterogeneous reaction is involved

Diseño de un dispositivo médico de inducción magnética para el tratamiento del cáncer

En el presente documento se dispone todo el trabajo necesario realizado para la elaboración de un dispositivo de inducción magnética capaz de ser utilizado en tratamientos de carácter oncológico como herramienta alternativa a la quimioterapia o radioterapia. El guión que sigue este documento es el recorrido temporal que se ha seguido para su desarrollo, empezando por adquirir los conocimientos necesarios en la materia del dispositivo. A continuación, y puesto que este documento está orientado a la elaboración de un producto, se establecen las especificaciones técnicas que deben cumplirse para su correcta implementación en dicho campo. Antes de partir de cero, se realiza un estudio de dispositivos de mercado que se encuentran en nuestro entorno cotidiano, de fácil acceso, tanto por su facilidad para disponer de ellos como por su precio y nos centramos en aquellos aspectos que pueden servir para nuestro propósito. Por último, y siguiendo los pretextos anteriores, se diseña el dispositivo que se ajusta al rendimiento técnico y con las especificaciones requeridas y del que se espera que sea útil para poder ser utilizado en el entorno profesional para el que ha sido diseñado.The present document provides all the necessary work done for the development of a magnetic induction device capable of being used in cancer treatments as an alternative tool to chemotherapy or radiotherapy. The script that follows this document is the temporary route that has been followed for its development, beginning with acquiring the necessary knowledge in the matter of the device. Next, and since this document is oriented to the elaboration of a product, it establishes the technical specifications that must be fulfilled for its correct implementation in that field. Before starting from scratch, there is a study of market devices that are in our daily environment, easily accessible, both for their ease to dispose of them as well as for their price and we focus on those aspects that can serve our purpose. Finally, and following the previous pretexts, the device is designed that conforms to the technical performance and specifications required and is expected to be useful to be used in the professional environment for which it has been designed.Proyecto Fin de Carrera de la Univ. de Granada. Departamento de Electrónica y Tecnología de Computadore

Gas-solid conversion in fluidised bed reactors

Asimplified model for gas–solid reactions in fluidised bed (FB) is proposed. Such models already exist for catalytic gas–solid reactions (CGSRs), providing general description of the system in terms of main governing parameters. Expansion of this approach to non-catalytic gas–solid reactions (NCGSRs) is difficult, because the solid reactant takes part in the reaction. Therefore, FB reactor models for NCGSR are usually devised only for specific cases, and a general analysis has not been presented up to date. The present model allows analysis of different types of NCGSR in a generalised way, handling catalytic reactions as a particular, simpler, case. It is shown that the reactor behaviour can be described by three governing dimensionless parameters. Two additional parameters, quantifying the importance of diffusion effects in single particles are also identified, and their impact on reactor behaviour is analysed. Possible simplifications are explored. Model limitations, that is, assumption of isothermal bed and particle and the occurrence of only one reaction, are discussed. Examples are outlined to show the applicability of the methodPublicad

Data for the modelling of the future power system with a high share of variable renewable energy

Energy and power system models have become necessary tools that provide challenges and technical and economic solutions for integrating high shares of Variable Renewable Energy. Models are focused on analysing strategies of power systems to achieve their decarbonisation targets. The data presented in this paper includes the model algorithm, inputs, equations, modelling assumptions, supplementary materials, and results of the simulations supporting the research article titled “Facing the high share of variable renewable energy in the power system: flexibility and stability requirements”. The analysis is based on data from the system operator of one of the European Union member states (Spain). The developed model allows making projections and calculations to obtain the power generation of each technology, the international interconnections, inertia, emissions, system costs and flexibility requirements of new technologies. These data can be used for energy policy development or decision making on power capacity and the balancing needs of the future power system.Ministerio de Ciencia e Innovación PID2020-114725RA-I00Universidad de Sevilla VI PPIT-USPlan nacional I+D+I CTM2016-78089-RJunta de Andalucía P18-RT-451

Integration of proteomics with transcriptomics and metallomics for the study of environmental issues

Comunicaciones a congreso

Production of small peptides and low molecular weight amino acids by subcritical water from fish meal: Effect of pressurization agent and temperature

Trabajo presentado en: 19th European meeting on Supercritical Fluids (EMSF 2023), organized by the International Society for the Advancement of Supercritical Fluids, Budapest, 21-24 may, 2023Fish meal is a by-product obtained in the marine food industry that is actually used in aquaculture and pet-food industry. It presents a high protein content as well as a valuable lipid fraction composition. The protein fraction from marine origin has a high nutritional value and a great amino acid profile. In order to improve the use of this by-product, more sustainable forms of exploiting it must be considered and the products obtained more useful.This work was supported by the AEI [grant numbers PID2019-104950RB-I00, PID2020-116716RJ-I00, TED2021-129311B-I00, PDC2022-133443-I00] and the JCyL and the ERDF [grant number BU050P20]. P. Barea predoctoral contract was funded by JCyL and the European Social Fund (ESF) by ORDEN EDU/1868/2022, de 19 de diciembre. P. Alonso-Riaño predoctoral contract was funded by JCyL and the European Social Fund (ESF) by ORDEN EDU/556/2019, de 5 de junio. R. Melgosa contract was funded by a Beatriz Galindo Research Fellowship [BG20/00182]. A. Bermejo López acknowledges the Margarita Salas grant (MARSA22/03)