Search results for "Wage"
showing 10 items of 731 documents
ECONOMIC AND TECHNICAL EFFICIENCY OF WASTEWATER PLANTS: A BASIC REQUISITE TO THE FEASIBILITY OF WATER REUSE PROJECTS
2006
The water reuse could be considered essential both from a social and also an environmental and health point of view. In light of the growing importance of water reuse as an alternative source of water resources in many regional areas, the objective of this paper is to analyse the efficiency of wastewater treatment plants. Efficient performance, both in technical and economic terms favours reuse possibilities and, therefore, increases the water supply. An analytical benchmarking methodology based on non-radial measures gives us an efficiency indicator for each input considered in the wastewater treatment process. These indicators, obtained by means of mathematical programming techniques, are…
Environmental Benefits of Wastewater Treatment: An Economic Valuation
2009
The need of economic research into the design and implementation of policies for the efficient management of water resources has been emphasized by the European Water Framework Directive (Directive 2000/60/UE). The efficient implementation of policies to prevent the degradation and depletion of water resources requires determining their value in social and economic terms and incorporating this information into the decision-making process. A process of wastewater treatment has many associated environmental benefits. However, these benefits are often not calculated because they are not set by the market. Nevertheless, the valuation of these benefits is necessary to justify a suitable investme…
A Distributional Approach for Measuring Wage Discrimination and Occupational Discrimination Separately
2014
The well-known Blinder–Oaxaca [Blinder, J. Hum. Resour. 8(4), 436–455 (1973); Oaxaca, Int. Econ. Rev. 14(3), 693–709 (1973)] decomposition divides the wage differential between men and women into a part, which can be explained by differences in individual characteristics, and another part, which is usually interpreted as discrimination. This decomposition neglects any distributional issues in evaluating discrimination, thus permitting undesirable compensation between positively and negatively discriminated women. Jenkins [J. Econ. 61(1), 81–102 (1994)] has criticized this aspect, instead, preferring a distributional approach, where the entire distribution of experienced discrimination is ev…
¿Avances en la lucha contra la discriminación salarial por razón de sexo?
2021
En este trabajo se realiza un análisis de la discriminación salarial por razón de sexo y de la normativa dictada al efecto de combatir dicha diferenciación y alcanzar la igualdad retributiva. Para ello, se realiza un estudio de la normativa existente, tanto a nivel internacional, como comunitario y nacional, así como de los diferentes tipos de discriminación existentes, esto es, directa e indirecta, con sus manifestaciones prácticas a través de la doctrina judicial. Adicionalmente, se analizan los factores más habituales que inciden en la creación de situaciones discriminatorias para la mujer trabajadora en materia salarial. Y, finalmente, se estudian las medidas establecidas recientemente …
Calibration and simulation of ASM2d at different temperatures in a phosphorous removal pilot plant
2006
In this work, an organic and nutrient removal pilot plant was used to study the temperature influence on phosphorus accumulating organisms. Three experiments were carried out at 13, 20 and 24.5 degrees C, achieving a high phosphorus removal percentage in all cases. The ASM2d model was calibrated at 13 and 20 degrees C and the Arrhenius equation constant was obtained for phosphorus removal processes showing that the temperature influences on the biological phosphorus removal subprocesses in a different degree. The 24.5 degrees C experiment was simulated using the model parameters obtained by means of the Arrhenius equation. The simulation results for the three experiments showed good corresp…
More hours, more jobs? The employment effects of longer working hours
2014
Increases in standard hours of work have been a contentious policy issue in Germany. Whilst this might directly lead to a substitution of workers by hours, there may also be a positive employment effect due to reduced costs. Moreover, the response of firms may differ between firms that offer overtime and those that do not. For a panel of German plants (2001–2006) drawn from the IAB Establishment Panel, we are the first to analyse the effect of increased standard hours on employment. Using difference-in-difference methods we find that, consistent with theory, overtime plants showed a significant positive employment response, whilst for standard-time plants there is no difference between plan…
Pobreza laboral en España : causas y alternativas políticas
2017
En el contexto de la crisis actual los trabajadores y trabajadoras pobres son una nueva realidad y las tasas de pobreza en España se encuentran entre las más altas de Europa. Habitualmente la pobreza se relacionada con el desempleo y la jubilación. Pero desde 2007 las características de las personas afectadas han cambiado radicalmente. Colectivos que tradicionalmente se consideraban "protegidos" (personas ocupadas, con nivel educativo alto…) ahora ya no lo están. El fuerte incremento de la pobreza que ha tenido lugar y la generalización del problema a nuevos grupos sociales significan un nuevo desafío para el trabajo decente y la integración social. Desde nuestro punto de vista las causas d…
Electrodialysis for wastewater treatment—Part I: Fundamentals and municipal effluents
2020
Abstract Selectivity, high recovery, and chemical-free operation are strengths of electrodialysis. Different configurations have been proposed for several applications. Effluents from municipal wastewater treatment plants (including sludge and supernatants), desalination plants, and animal farms can be treated for recovering water, nutrients, salts, and acids/bases. Although many applications are technoeconomically feasible and competitive with other zero liquid discharge systems, only a few real plants have been installed. However, the research is currently very active, thus paving the way for a widespread use at large scale in the next future.
Electrodialysis for wastewater treatment-part II: Industrial effluents
2020
Abstract Electrodialysis and related processes have huge potential in the treatment of effluents from a variety of industrial processes. They can recover water and other valuable products, including heavy metal ions, acids and bases, nutrients, and organics. In recent years, novel and improved systems have been continuously developed as a result of research in the field, showing that the (near) zero liquid discharge approach can be affordable in several industrial applications. A larger market share is expected in the near future.
Land use functions — a multifunctionality approach to assess the impact of land use changes on land use sustainability
2008
Part 5. Regional and local evaluation - 17; International audience; The dramatic changes in land use observed in Europe in the last fifty years have generally resulted in improvement of human welfare and economic development. On the other hand, they have caused serious environmental problems. There is therefore a need for approaches that help to understand in an integrative way the economic, environmental and societal impacts that land use changes have on sustainability. Sustainability Impact Assessment(SIA), which assesses the impact of policies on sustainability, addresses this challenge. SIA partly builds on the concept of the multifunctionality of land which helps to deal with the compl…