Search results for "consumption"
showing 10 items of 1796 documents
On the Reduction of Power Consumption in Vortexing Unbaffled Bioslurry Reactors
2020
Bioremediation of polluted soils via bioslurry reactors is an interesting option among those available nowadays, especially when recalcitrant pollutants are present. Vortexing unbaffled stirred tanks may be a valuable choice to this purpose as they were recently found to be more efficient than baffled vessels for solid suspension processes where mixing time is not a controlling factor. When operated at sufficiently high agitation speeds, the central vortex bottom reaches the impeller and air bubbles start to be distributed throughout the system, thus avoiding any sparger and related clogging issues. In the present work, a vortexing unbaffled stirred tank with solid loadings ranging from 2.5…
Towards A New Decision Support System for Design, Management and Operation of Wastewater Treatment Plants for the Reduction of Greenhouse Gases Emiss…
2015
The increasing attention paid to the environment has led to a reduction in the emissions from wastewater treatment plants (WWTPs). Moreover, the increasing interest in the greenhouse gas (GHG) emissions from WWTPs suggests that we reconsider the traditional tools used for designing and managing WWTPs. Indeed, nitrous oxide, carbon dioxide and methane can be emitted from wastewater treatment, significantly contributing to the greenhouse gas (GHG) footprint. The reduction of energy consumption as well as GHG emission are of particular concern for large WWTPs which treat the majority of wastewater in terms of both volume and pollution load. Nowadays, there is an increasing need to develop new …
Identification of effective parameters for anti-inflammatory concentration in València City's wastewater using fuzzy-set qualitative comparative anal…
2019
The current literature about pharmaceutical and personal care compounds (PPCPs) focuses on identifying their concentration and toxicological risk both in surface water and in wastewater. However, the influence of urban areas (population ageing, income level, hospitals and others) has not yet been analysed. Knowing how a population (and its facilities) affects PPCPs' presence in wastewater is important to identify the conditions that are responsible for their presence. In this work, the influence of water consumption, population ageing, income level, hospitals and nursing homes on the anti-inflammatory concentration have been analysed. To fill the gap between the quantitative data on PPCPs' …
Estado actual sobre la exposición alimentaria al mercurio durante el embarazo y la infancia, y recomendaciones en salud pública
2013
La exposición a dosis altas de mercurio durante periodos vulnerables (como el embarazo y la infancia) puede tener serias consecuencias para el desarrollo cognitivo, tal como se ha constatado tras los episodios de envenenamiento agudo ocurridos en Japón e Irak. El consumo de ciertos tipos de pescado es la fuente principal de exposición a mercurio de la población general. Existe una creciente preocupación por los posibles efectos neurotóxicos del mercurio, especialmente a edades tempranas en poblaciones donde el consumo de pescado es moderado-alto. La evidencia científica hasta el momento no es concluyente. En el ámbito español, el Proyecto INMA (Infancia y Medio Ambiente) ha proporcionado in…
Rainwater Reuse in Urban Areas: A Mathematical Model and a Long-Term Modelling Approach
2018
Natural water resources are becoming increasingly limited due to global-scale climate change and water availability issues have become so severe that they must be addressed. Given these issues, reuse of wastewater and rainwater provides a promising way to cope with water shortages. This paper describes an investigation into the efficiency of rainwater usage systems. A conceptual model was built to assess the behaviour of rainwater tanks and their effectiveness in coping with water shortages. The study is based on a long-term simulation (12 years) of different rainwater reuse tank schemes. The associated reductions in residential freshwater demand (water reuse efficiency) and wet-weather run…
Pay Now, Consume Later: The Power of Delayed Gratification
2021
This chapter analyzes the birth and development of modern tourism. The bubble model, an economic instrument that originated in Fordism, provides the direction to this analysis. Mass-scale production generated much frustration and discontent in society. Economists who historically suggested consumption as a great malady for the economy emphasize consumers’ self-control as the only way to reach a zero-poverty society. Tourism not only revitalized the social frustration of capitalism but also allowed rapid globalization of the world. For this project to be successful, all-paid packages and tours were widely offered to travelers. Prepaid tours or all-inclusive tours emerged as an excellent reas…
The Influence of Alcohol Advertising in Underage versus Overage Alcohol Consumption: Affective Responses and Advertising Effectiveness
2011
It is widely accepted that a framework is necessary to regulate advertising activities. Advertising has a responsibility within our economic system, to provide information on new and existing products and services. Economic health of both buyers and competitors is affected if the advertising system is injected with false or misleading claims. Thus, Government and self-regulation associations should create a set of rules which define and control the behaviour of the advertising companies. Taking into account the power attributed to advertising for influencing consumer behaviour, some of those mentioned rules are established to protect the audience.
Ley y democracia en la era del terrorismo
2013
Gradually, the law and state are funcional to defend the interest of status quo. We believed having seen anything before the disaster of Nuremberg, but we were wrong. Even United State defended racism inner-ward at time this power expanded the discourse of democracy beyond its boundaries. We strongly believe not only that the law is determined by economy but also the right paves the way for the upsurge of dictatorship. Whether the old democracy in Greece encouraged the possibility to derogate an unfair law if necessary, the Anglo democracy (functional to capitalism) today recycles sites and states in order to install a regime of consumption where the gap between representants and citizens a…
Multi-objective DSE algorithms' evaluations on processor optimization
2013
Very complex micro-architectures, like complex superscalar/SMT or multicore systems, have lots of configurations. Exploring this huge design space and trying to optimize multiple objectives, like performance, power consumption and hardware complexity is a real challenge. In this paper, using the multi-objective design space exploration tool FADSE, we tried to optimize the hardware parameters of the complex superscalar Grid ALU Processor. We compared how different heuristic algorithms handle the DSE optimization. Three of these algorithms are taken from the jMetal library (NSGAII, SPEA2 and SMPSO) while the other two, CNSGAII and MOHC were implemented by us. We show that in this huge design …
Global and Local Clustering-Based Regression Models to Forecast Power Consumption in Buildings
2019
The study of energy efficiency in buildings is an active field of research. Modeling and predicting energy related magnitudes leads to analyze electric power consumption and can achieve economical benefits. In this study, classical time series analysis and machine learning techniques, introducing clustering in some models, are applied to predict active power in buildings. The real data acquired corresponds to time, environmental and electrical data of 30 buildings belonging to the University of León (Spain). Firstly, we segmented buildings in terms of their energy consumption using principal component analysis. Afterwards, we applied state of the art machine learning methods and compare bet…