Mussolini las quiere deportistas: mujer y deporte en los noticiarios cinematográficos Luce (1928-1943)

Este artículo analiza la imagen que el noticiario cinematográfico Luce presentó de las mujeres del mundo del deporte entre 1928 y 1943. Se utiliza como fuente los noticiarios Luce porque constituyó uno de los instrumentos fundamentales de la propaganda fascista. Se estudia la evolución de la representación de la mujer en diferentes ámbitos del deporte, así como la política fascista relacionada con el deporte femenino y el culto del cuerpo.

Water reduction in waste-activated sludge by resettling and filtration in batch. Phase (1): pilot-scale experiments to optimize performance

This article describes an effective procedure for reducing the water content of excess sludge production from a wastewater treatment plant by increasing its concentration and, as a consequence, minimizing the volume of sludge to be managed. It consists of a pre-dewatering sludge process, which is used as a preliminary step or alternative to the thickening. It is made up of two discontinuous sequential stages: the first is resettling and the second, filtration through a porous medium. The process is strictly physical, without any chemical additives or electromechanical equipment intervening. The experiment was carried out in a pilot-scale system, consisting of a column of sedimentation that incorporates a filter medium. Different sludge heights were tested over the filter to verify the influence of hydrostatic pressure on the various final concentrations of each stage. The results show that the initial sludge concentration may increase by more than 570% by the end of the process with the final volume of sludge being reduced in similar proportions and hydrostatic pressure having a limited effect on this final concentration. Moreover, the value of the hydrostatic pressure at which critical specific cake resistance is reached is established.