Search results for " reuse"

Manufacturing processes as material and energy efficiency strategies enablers: The case of Single Point Incremental Forming to reshape end-of-life me…

2021

Abstract Making materials consumes about 21% of the global energy demand; concerning metals production, it accounts for about 8% of total global energy consumption. Circular economy strategies such as longer life, more intense use, repair, product upgrades, modularity, remanufacturing, component reuse, and open/closed-loop recycling are strategies to put in place urgently to reduce the environmental impact of raw material production. Although recycling of metals is the most used strategy and is being improved in terms of efficiency, it is mandatory moving towards more virtuous circular economy strategies, such as product/component reuse. In this paper a novel reuse strategy for sheet metal …

Manufacturing strategies for efficiency in energy and resources use: The role of metal shaping processes

2017

Abstract Manufacturing sector nowadays has to deal with the global need to reduce the environmental impact of human activity. As manufacturing accounts for a significant portion of the global CO 2 emissions, scientific research should be addressed to understand the environmental impact of manufacturing processes and, in the meantime, to take advantage of their full potential in reducing the overall CO 2 emissions. The present review paper aims at describing the role of metal shaping processes in reducing the environmental impact across different stages of metal components life. Actually, an increased consciousness concerning both the environmental performances of manufacturing processes and…

Development of immunoaffinity columns for pyraclostrobin extraction from fruit juices and analysis by liquid chromatography with UV detection

2010

Abstract Pyraclostrobin belongs to a new generation of fungicides widely used to preserve high valuable crops. In the present study, three monoclonal antibodies with different affinities to this modern strobilurin have been evaluated for their usefulness in the production of immunoaffinity columns suitable for the solid-phase extraction, concentration, and clean-up of residues from food commodities. Different immunosorbents were produced and characterized in terms of antibody immobilization efficiency, immunosorbent binding capacity, optimum elution conditions, and reusability. Covalent coupling of the antibodies to Sepharose–CNBr gel took place with high yield (over 90%), whereas the immun…

The user’s perspective in architectural heritage

2019

Currently, the awareness has been widely acquired that appropriate use is an important condition for saving architectural heritage: as well as many others requisites (manageability, maintainability, and security) similarly accessibility has become common to any settlement, including the built heritage. Keeping in mind this general framework, the paper will outline the link between architec- tural heritage and the user’s perspective, intended as the paramount basis both of technological design and health science. The intertwined relationships between socio-cultural and economical aspects clarify the features of the use of this specific form of built environment, proposed as a thought provoki…

Aspetti tecnologici per il riuso: contributi al dibattito

2016

Qui il taglio della trattazione sul riuso della Centrale Enel Tifeo è legato alle questioni tecnologiche sia pure in un’accezione ampia che declina sia le tecniche ambientali che le tecnologie connesse agli edifici e alle costruzioni. Una lettura disciplinare, certamente parziale e limitata, che non vuole mancare però di individuare fattori comuni e temi di dibattito di più ampio respiro. Si tenta questa analisi con una struttura di tre paragrafi, parzialmente correlati a scale di problemi: il contesto e il lotto, quale area di dominio; l’involucro, soprattutto considerato per l’edificio dei turbo-alternatori; l’ambiente indoor e gli spazi interni in edifici dalla spazialità estremamente pa…

Almond shell reuse: a viable non-conventional aggregate for sustainable building materials

2022

Bio-based or green architecture is a new way of designing and building in line with the European Green Deal and in light of the Circular Economy principles. The main green approach directs the whole construction life cycle to be eco-sustainable and environmentally friendly from the beginning to the end of the building process. Beyond the use of eco sustainable and highly performing structural materials, new technologies able of reduce the environmental impact of buildings must be used. This paper is aimed at reviewing the possible reuse of bio- wastes of agricultural origin whose massive production generates a number of issues for their treatment and disposal. In particular, this study will…

The Carini experimental station for wastewater reuse in agricolture.

1992

RECYCLING SPENT COFFEE WASTE FOR INNOVATIVE THERMO-PLASTERS: DEVELOPMENT OF A PROTOTYPE

2022

This paper presents an experimental study aimed at testing the real energy performance of a thermo-plaster prototype made of an ordinary mortar boosted by various percentages of spent coffee ground. That is one of the wastes of the brewing process that are usually disposed of in landfill with great concerns for the possible environmental footprint due to its organic nature and possible harmful components. In this paper, the mortar was manufactured froman ordinary Portland cement and sand, partially substituted by the waste. Specimens characterization is briefly outlined and a careful examination of the thermal properties is carried out. A plastering prototype was manufactured and placed in …

Challenges and opportunities for citrus wastewater management and valorisation: A review.

2022

Citrus wastewaters (CWWs) are by-products of the citrus fruit transformation process. Currently, more than 700 million of m³ of CWWs per year are produced worldwide. Until nowadays, the management of CWWs is based on a take-make-use-dispose model. Indeed, after being produced within a citrus processing industry, CWWs are subjected to treatment and then discharged into the environment. Now, the European Union is pushing towards a take-make-use-reuse management model, which suggests to provide for the minimization of residual pollutants simultaneously with their exploitation through a biorefinery concept. Indeed, the recovery of energy nutrients and other value-added products held by CWWs may…

Enabling Soft Frequency Reuse and Stienen's Cell Partition in Two-Tier Heterogeneous Networks: Cell Deployment and Coverage Analysis

2021

Heterogeneous cellular networks (HetNets) are one of the key enabling technologies for fifth generation (5 G) networks. In HetNets, the use of small base stations (SBSs) inside the coverage area of a macro base station (MBS) offers higher throughput and improved coverage. However, such multi-tier base station deployment introduces new challenges, e.g., (i) All users experience significant inter-cell interference (ICI) due to frequency reuse, (ii) SBS associated users experience severe MBS-interference due to higher MBS transmit power, and (iii) MBS coverage edge users receive lower signal-to-interference ratio (SIR) due to longer distances. To address the aforementioned challenges, this wor…