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Microwave Technology Using Low Energy Concentrated Beam for Processing of Solid Waste Materials from Rapana thomasiana Seashells

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  • Sorin Vasile Savu

    (Department of Engineering and Management of Technological Systems, University of Craiova, 1 Calugareni Str., 220037 Drobeta-Turnu Severin, Romania)

  • Daniela Tarnita

    (Department of Applied Mechanics, University of Craiova, 107 Calea Bucuresti Str., 200512 Craiova, Romania)

  • Gabriel Constantin Benga

    (Department of Engineering and Management of Technological Systems, University of Craiova, 1 Calugareni Str., 220037 Drobeta-Turnu Severin, Romania)

  • Ilie Dumitru

    (Department of Automotive, Transport and Industrial Engineering, University of Craiova, 200585 Craiova, Romania)

  • Iulian Stefan

    (Department of Engineering and Management of Technological Systems, University of Craiova, 1 Calugareni Str., 220037 Drobeta-Turnu Severin, Romania)

  • Nicolae Craciunoiu

    (Department of Automotive, Transport and Industrial Engineering, University of Craiova, 200585 Craiova, Romania)

  • Adrian Bebe Olei

    (Department of Engineering and Management of Technological Systems, University of Craiova, 1 Calugareni Str., 220037 Drobeta-Turnu Severin, Romania)

  • Ionel Danut Savu

    (Department of Engineering and Management of Technological Systems, University of Craiova, 1 Calugareni Str., 220037 Drobeta-Turnu Severin, Romania)

Abstract

The solid waste of Rapana thomasiana seashells both from domestic activities and natural waste on seashore can be used to obtain viable products for medical applications. However, conventional technologies applied for sintering the materials require massive energy consumption due to the resistance heating. Microwave heating represents an advanced technology for sintering, but the stability of the process, in terms of thermal runaway and microwave plasma arc discharge, jeopardizes the quality of the sintered products. This paper aims to present the results of research focused on viable heating technology and the mechanical properties of the final products. A comparative analysis, in terms of energy efficiency vs. mechanical properties, has been performed for three different heating technologies: direct microwave heating, hybrid microwave heating and resistance heating. The results obtained concluded that the hybrid microwave heating led to final products from Rapana thomasiana solid waste with similar mechanical properties compared with resistance heating. In terms of energy efficiency, the hybrid microwave heating was 20 times better than resistance heating.

Suggested Citation

  • Sorin Vasile Savu & Daniela Tarnita & Gabriel Constantin Benga & Ilie Dumitru & Iulian Stefan & Nicolae Craciunoiu & Adrian Bebe Olei & Ionel Danut Savu, 2021. "Microwave Technology Using Low Energy Concentrated Beam for Processing of Solid Waste Materials from Rapana thomasiana Seashells," Energies, MDPI, vol. 14(20), pages 1-25, October.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:20:p:6780-:d:658669
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    References listed on IDEAS

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    1. Iribarren, Diego & Moreira, María Teresa & Feijoo, Gumersindo, 2010. "Implementing by-product management into the Life Cycle Assessment of the mussel sector," Resources, Conservation & Recycling, Elsevier, vol. 54(12), pages 1219-1230.
    2. Leary, David & Vierros, Marjo & Hamon, Gwenaëlle & Arico, Salvatore & Monagle, Catherine, 2009. "Marine genetic resources: A review of scientific and commercial interest," Marine Policy, Elsevier, vol. 33(2), pages 183-194, March.
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    Cited by:

    1. Sorin Vasile Savu & Robert Cristian Marin & Andrej David & Adrian Bebe Olei & Ilie Dumitru & Daniela Tarnita & Andrea Maternova & Ionel Dănuț Savu, 2022. "Reducing NOx Emissions through Microwave Heating of Aftertreatment Systems for Sustainable Transport in the Inland Waterway Sector," Sustainability, MDPI, vol. 14(7), pages 1-17, March.

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