Sökning: "återvinning"

Visar resultat 1 - 5 av 62 avhandlingar innehållade ordet återvinning.

  1. 1. Sustainable Recycling of Spent Lithium-ion Batteries : An In-situ Approach for Recovery and Alloying of Valuable Metals

    Författare :Safoura Babanejad; Hesham Ahmed; Charlotte Andersson; Ari Jokilaakso; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Li-ion battery; black mass; Recycling; Pyrometallurgy; modeling; Process Metallurgy; Processmetallurgi;

    Sammanfattning : A large number of Li-ion batteries used today will reach their End-Of-Life (EOL) in a few years. After their EOL, the recovery of their precious elements is required. By applying physical separation, a fraction with fine particle size is left behind which is known as Black Mass (BM). LÄS MER

  3. 2. Recovery of Rare Earth Elements from spent Nickel-Metal Hydride Batteries from Hybrid Electric Vehicles

    Författare :Kivanc Korkmaz; Kerstin Forsberg; Åke C. Rasmuson; Gisele Azimi; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Rare earth elements; hybrid electric vehicles; recycle; nickel; cobalt; precipitation; anti-solvent crystallization; selective roasting; Sällsynta jordartsmetaller; hybridelektriska fordon; återvinning; nickel; kobolt; utfällning; förträngningskristallisation; selektiv rostning; Chemical Engineering; Kemiteknik;

    Sammanfattning : Rare earth elements (REE) are a group of elements that are of critical importance in numerous technological applications, including “green technologies” such as wind turbines and hybrid car batteries. When the criticality of applications is considered, problems in supply has brought the option of effective secondary resource utilization into consideration. LÄS MER

  4. 3. Strategies for Utilizing Biobased and Recycled Resources for Polylactide Plasticization

    Författare :Xi Yang; Minna Hakkarainen; Karin Odelius; Youssef Habibi; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Polylactide; poly 3-hydroxybutyrate ; poly butylene succinate-co-adipate ; bio-based; microwave; reactive extrusion; recycling; plasticizing; migration resistance; crystallization; polylaktid; poly 3-hydroxibutyrat ; poly butylen succinat-sam-adipat ; biobaserade; mikrovågsugn; reaktiv extrudering; återvinning; mjukgörare; migrationsmotstånd; kristallisering; Fiber- och polymervetenskap; Fibre and Polymer Science;

    Sammanfattning : There are many aspects that should be considered to achieve truly "environmental friendly" and "sustainable" materials. These include the raw material resource, the energy consumption, the chemicals generated and used, the emissions during production, processing, transportation, disposal and so on. LÄS MER

  5. 4. Det återvunna folkhemmet : tevejournalistik och miljöpolitik i Sverige 1987-1998

    Författare :Camilla Hermansson; Jonas Anshelm; Linköpings universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Television; Journalism; Media Studies; Sweden; Environment; Politics; Ecological Modernity; Discourse; Narrative; Ideology; Recycling; Consurnption; Nyhetsprogram; Nyhetsjournalistik; Miljöfrågor i massmedia; Television; Miljöpolitik; Återvinning; Konsumtion; Bilism; Sverige; 1980-1990; INTERDISCIPLINARY RESEARCH AREAS; TVÄRVETENSKAPLIGA FORSKNINGSOMRÅDEN;

    Sammanfattning : This study is an analysis of how television journalism, specifically Swedish publictelevision (SVT) and the commercial channel TV4, have approached environmental,consumption and lifestyle issues from 1997 to 1998. A central issue considered is howtelevision journalism in Sweden has contributed to an ideologieal change in societywhereby ecological considerations have become individualized, as well as reformulatedand re-ftamed such that they are no longer (or not) regarded as a hinder to technical andeconomic progress. LÄS MER

  7. 5. Circularity in Thermal Recycling for Sustainable Carbon Fibers

    Författare :Marina Corvo Alguacil; Roberts Joffe; Tommy Öman; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; pyrolysis; carbon fiber; composites recycling; CFRP; polymer composites; sustainability; Polymeric Composite Materials; Polymera kompositmaterial;

    Sammanfattning : The research field of composite materials is particularly fascinating due to the design freedom they offer and the infinite number of constituent combinations, including those that are already explored, and many more that are yet to be tried. One composite material that holds great potential contains carbon in its fiber shape. LÄS MER