Search results for " valor"
showing 10 items of 416 documents
Bipolar membrane reverse electrodialysis for the sustainable recovery of energy from pH gradients of industrial wastewater: Performance prediction by…
2021
Abstract The theoretical energy density extractable from acidic and alkaline solutions is higher than 20 kWh m−3 of single solution when mixing 1 M concentrated streams. Therefore, acidic and alkaline industrial wastewater have a huge potential for the recovery of energy. To this purpose, bipolar membrane reverse electrodialysis (BMRED) is an interesting, yet poorly studied technology for the conversion of the mixing entropy of solutions at different pH into electricity. Although it shows promising performance, only few works have been presented in the literature so far, and no comprehensive models have been developed yet. This work presents a mathematical multi-scale model based on a semi-…
A Novel Ionic Exchange Membrane Crystallizer to Recover Magnesium Hydroxide from Seawater and Industrial Brines
2020
A novel technology, the ion exchange membrane crystallizer (CrIEM), that combines reactive and membrane crystallization, was investigated in order to recover high purity magnesium hydroxide from multi-component artificial and natural solutions. In particular, in a CrIEM reactor, the presence of an anion exchange membrane (AEM), which separates two-compartment containing a saline solution and an alkaline solution, allows the passage of hydroxyl ions from the alkaline to the saline solution compartment, where crystallization of magnesium hydroxide occurs, yet avoiding a direct mixing between the solutions feeding the reactor. This enables the use of low-cost reactants (e.g., Ca(OH)2) without …
ELECTRICAL ENERGY STORAGE DEVICES BASED ON pH AND SALINITY GRADIENTS: MODELLING, EXPERIMENTS AND PILOTING
2021
Electrodialysis Applications in Wastewater Treatment for Environmental Protection and Resources Recovery: A Systematic Review on Progress and Perspec…
2020
This paper presents a comprehensive review of studies on electrodialysis (ED) applications in wastewater treatment, outlining the current status and the future prospect. ED is a membrane process of separation under the action of an electric field, where ions are selectively transported across ion-exchange membranes. ED of both conventional or unconventional fashion has been tested to treat several waste or spent aqueous solutions, including effluents from various industrial processes, municipal wastewater or salt water treatment plants, and animal farms. Properties such as selectivity, high separation efficiency, and chemical-free treatment make ED methods adequate for desalination and othe…
I confini del sindacato del G.A. sulla discrezionalità tecnica nella materia dei beni culturali.
2011
The evolution of the legal category of the technical discretion of the public administration assumes a particular relevance in the field of the protection of cultural goods in which the question of the 'external limit' of the review of legality of the administrative judge It offers elements and materials to scientific reflection in order to frame the administrative procedure of identification / evaluation, through technical-specialized rules and historicization and certification paths, of the cultural value imprinted in the goods.
Le misure pubbliche di sostegno all'internazionalizzazione delle imprese
2020
Il capitolo analizza gli strumenti di supporto pubblico all'internazionalizzazione delle imprese italiane. In particolare, si esamina il ruolo delle pubbliche amministrazioni e degli istituti nazionali di promozione e il loro supporto tecnico e finanziario in favore delle piccole e medie imprese. The chapter analyzes the public support to the internationalization process of Italian firms. It examines the role of public administrations and national promotional banks and their financial and technical support to small and medium-sized enterprises.
Disabilità umane: su cosa significhi l'avere accesso a un valore
2011
In this essay we reflect on some general theoretical questions about disability, beginning with some absences of ability that are conventionally classed as disabilities (lack of vision, lack of mobility). We move from there to ask whether those of us who are conventionally classed as non-disabled in fact suffer from disabilities, and in particular whether there are disabilities shared by all humans. We reflect on the idea of the superhero, and also on whether it makes sense to envy the abilities of other species that are not shared by human beings. This leads us into a critique of species-relativism about value. We defend the thesis that all value is value for everything. This draws us into…
Il problema della scienza giuridica
2013
Stato, rivoluzione e violenza simbolica. Una lettura à la Bourdieu dell’insorgenza cilena
2023
The essay is part of a book that aims to rediscover and enhance Pierre Bourdieu's contribution to the legal philosophy. Clelia Bartoli's paper takes up the French sociologist's theory of the State outlined during courses held at the College de France in 1989/1990 and 1990/1992. Bourdieu eschewed an intellectual fashion of his time that pushed historians, political scientists, lawyers and sociologists to examine the causes and reasons, evolutions and epilogues of revolutions, at the expense, however, of what is happening on the background: the dull, muffled and repetitive order of things. Bourdieu believed that permanence more than change, what is obvious more than what is eccentric, the ord…