Search results for "Waste valorisation"

showing 3 items of 3 documents

Reuse and recycling in construction: novel photocatalytic nano-mortars from valorised industrial wastes

2021

Production of novel eco-composite nano-mortars for architectural finishing, designed to combat environmental pollution affecting building shells, is reported. Specimens consist of a natural hydraulic lime mortar matrix doped with various kinds of nanophotocatalysts, produced from valorized industrial wastes: TiO2-hexaferrite from Fe3O2, and Ti(SO4)2-hydroxyapatite from Atlantic codfish bones. Samples were characterized and their photocatalytic activity was evaluated. Analysis showed that industrial wastes may be usefully reused to produce a new generation of sustainable, cheap and multifunctional novel building materials.

Settore CHIM/03 - Chimica Generale e InorganicaSettore ING-IND/22 - Scienza E Tecnologia Dei Materialireuse Industrial waste valorisation PhotocatalysisSettore CHIM/07 - Fondamenti Chimici delle TecnologieSettore ICAR/10 - Architettura TecnicaNanocomposite material Natural hydraulic lime Recycle &amp
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A sustainable replacement for TiO2 in photocatalyst construction materials: Hydroxyapatite-based photocatalytic additives, made from the valorisation…

2018

The use of waste materials and by-products in building materials is of increasing importance to improve sustainability in construction, as is the incorporation of photocatalytic materials to both combat atmospheric pollution and protect the structures and façades. This work reports the innovative use of photocatalytic hydroxyapatite (HAp) based powders, derived from Atlantic codfish bone wastes, as an additive to natural hydraulic lime mortars. HAp is the main component of bone, and hence is non-toxic and biocompatible. This is the first time that such a calcium phosphate-based photocatalyst, or indeed any fish/marine derived wastes, have been added to building materials. A key factor is th…

Strategy and ManagementSettore ING-IND/22 - Scienza e Tecnologia dei MaterialiWaste valorisationSettore ICAR/10 - Architettura Tecnica02 engineering and technology010501 environmental sciencesengineering.materialConstruction material; Hydroxyapatite; NHL mortar; Photocatalysis; Sustainable material; Waste valorisation01 natural sciencesIndustrial and Manufacturing Engineering12. Responsible consumptionHydroxyapatitePhotocatalysiSustainable materialCoating11. SustainabilitySettore ICAR/08 - Scienza delle CostruzioniPhotocatalysisNOx0105 earth and related environmental sciencesGeneral Environmental SciencePollutantSettore CHIM/03 - Chimica Generale e InorganicaNHL mortarWaste managementRenewable Energy Sustainability and the EnvironmentHydraulic limeSettore CHIM/07 - Fondamenti Chimici delle TecnologieBuilding and ConstructionConstruction material021001 nanoscience & nanotechnologyConstruction industry13. Climate actionengineeringPhotocatalysisEnvironmental scienceValorisationMortar0210 nano-technology
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Reusing coffee ground waste in manufacture of novel sustainable product

2021

Coffee is one of the most important commodities in the world. Every year the coffee industry is responsible for generating a large amount of wastes, mainly Spent Coffee Grounds (SCGs). The traditional disposal of this residue into the environment should be avoided due to its toxicity and organic character. Because of the decrease in nonrenewable natural resources, society has been making a huge effort to valorize and reuse several types of wastes in the production of novel sustainable products. In this regard, construction is considered one of the most energy-intensive sectors. As a consequence, the goals of sustainability and energy efficiency must be prosecuted to achieve the results expe…

Sustainability waste valorisation multi criteria decision making coffee.Settore ING-IND/17 - Impianti Industriali Meccanici
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