Search results for " green"
showing 10 items of 405 documents
Hydrogen Dark Fermentation for Degradation of Solid andLiquid Food Waste
2021
The constant increase in the amount of food waste accumulating in landfills and discharged into the water reservoirs causes environment pollution and threatens human health. Solid and liquid food wastes include fruit, vegetable, and meat residues, alcohol bard, and sewage from various food enterprises. These products contain high concentrations of biodegradable organic compounds and represent an inexpensive and renewable substrate for the hydrogen fermentation. The goal of the work was to study the efficiency of hydrogen obtaining and decomposition of solid and liquid food waste via fermentation by granular microbial preparation (GMP). The application of GMP improved the efficiency of the d…
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 …
Polymer based nanocomposites for novel generation greener material
2012
The European Green Deal: New Challenges for the Economic Feasibility of Energy Retrofit at District Scale
2020
The European Green Deal proposes an epochal change in the European society by transforming environmental and climatic problems into opportunities and making sustainable and fair the European Union economic system. Radical changes will also concern urban redevelopment and energy efficiency measures in order to reduce global greenhouse gas emissions. To achieve these objectives, rules and standards, as well as financial resources and assessment tools, are needed to support both urban planning and public decision process. This paper aims to analyze the existing European programs that are applied in some European smart cities, as they constitute a valuable source of information for the developm…
SISTEMI VERDI E AMBIENTI COSTIERI. Linee guida per un progetto tecnologico appropriato
2014
La progettazione tecnologica per l’edilizia negli ultimi anni è caratterizzata da una ricerca sempre maggiore di eco-efficienza e sostenibilità ambientale. Lo scenario normativo, sia nazionale che internazionale, manifesta la necessità di strumenti normalizzati e condivisi, di protocolli tecnici standardizzati, che garantiscano il controllo e la ripetibilità dei risultati. In quest’ottica lo studio approfondisce le specificità del tetto giardino - norma UNI 11235:2007 “Istruzioni per la progettazione, l’esecuzione, il controllo e la manutenzione di coperture a verde”- e del giardino verticale riconoscendo benefici e criticità che contraddistinguono questa ancora poco normalizzata tecnica di…
Existence and almost uniqueness for p -harmonic Green functions on bounded domains in metric spaces
2020
We study ($p$-harmonic) singular functions, defined by means of upper gradients, in bounded domains in metric measure spaces. It is shown that singular functions exist if and only if the complement of the domain has positive capacity, and that they satisfy very precise capacitary identities for superlevel sets. Suitably normalized singular functions are called Green functions. Uniqueness of Green functions is largely an open problem beyond unweighted $\mathbf{R}^n$, but we show that all Green functions (in a given domain and with the same singularity) are comparable. As a consequence, for $p$-harmonic functions with a given pole we obtain a similar comparison result near the pole. Various c…
La formula razionale rivisitata
2019
The Rational Formula (RF), also known as CIA formula, is probably the most applied equation in practical hydrology to compute the peak discharge, due to its simplicity and effective compromise between theory and data availability. The RF assumes the linearity of the hillslope response, neglects the time to ponding and the antecedent soil moisture condition (ASMC), concentrates the infiltration effect in the runoff coefficient (C) which estimation is highly controversial, since it is based on qualitative indications. This paper proposes an advanced rational formula that makes it possible to derive the peak discharge at the hillslope scale, where the above assumptions are relaxed and which de…
Development of a biosensor for copper detection in aqueous solutions using an Anemonia sulcata recombinant GFP.
2014
Fluorescent proteins from marine organisms represent potential candidates for biosensor development. In this paper, we described the isolation of a native green fluorescent protein from Anemonia sulcata and the cloning and purification of its equivalent as a recombinant protein in Escherichia coli. Furthermore, the spectroscopic behaviours of the native and recombinant GFPs were investigated as a function of Cu2+, Cd2+, Pb 2+ and Ni2+ concentration. Our results suggest the high selectivity of both proteins at copper than the other metals and, for the recombinant protein, a great sensitivity at a very low concentration (0.1-1 μM). Moreover, starting from these data, using the combination of …
¿Conduce la neurociencia a una naturalización del deontologismo? «Juicios morales deontológicos» en perspectiva neuroética
2017
A tenor de las investigaciones en el campo de la neuroética y más en concreto en la teoría del proceso dual del juicio moral en autores como Joshua Greene, nos planteamos la cuestión de si la neurociencia conduce necesariamente a una «naturalización del deontologismo». De este modo en nuestra comunicación ponemos en cuestión un modo de hacer neurociencia que pretenda reducir el deontologismo a un tipo de respuesta exclusivamente emocional. Frente a este modelo planteamos otra forma de hacer «neuroética» donde se consideren las estructuras psicofísicas de la moralidad sin incurrir en el reduccionismo miope naturalista. Se trata, por lo tanto, de descubrir la neurociencia de la ética, esto es…
Integration of green roofs&walls in urban areas
2020
Growing urbanization is associated with the emergence of environmental problems, such as the reduction of natural resources, the atmosphere pollution and the increase of the heat islands phenomenon in cities. The integration of vegetation in the urban areas, through the creation of green hanging systems, represents a possible solution to improve the energy sustainability of buildings, to combat meteoric excesses, to improve stormwater management and to reduce pollutant levels. These energy and environmental benefits are related to the properties of evapotranspiration, shading and thermal insulation of the vegetation. The work reports the results of the main studies concerning the use of han…