Sökning: "Valorisation"

Visar resultat 1 - 5 av 34 avhandlingar innehållade ordet Valorisation.

  1. 1. Valorisation of heterogeneous industrial residues towards a circular economy : A systems-oriented investigation on how to facilitate shredder fines valorisation in the Swedish context

    Författare :Tharaka Gunaratne; Joakim Krook; Hans Andersson; Jouni Korhonen; Linköpings universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Circular economy; Systems analysis; Valorisation; Resource recovery;

    Sammanfattning : In the context of circular economy in the European region the role of the recycling industry has become ever important. Shredder fines (or fines) is a heterogeneous fine-granular production residue of the shredding industry, and is currently disposed of. Shredder fines presents a disposal problem and incurs handling costs to the shredding industry. LÄS MER

  3. 2. Environmental Considerations in the Zero-waste Valorisation of Bauxite Residue : A Life Cycle Perspective

    Författare :Peter James Joyce; Anna Björklund; Hellweg Stefanie; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Life Cycle Assessment LCA ; bauxite residue; waste valorisation; Naturally Occurring Radioactive Materials NORM ; Life Cycle Thinking; LCA software; Circular Economy; Livscykelanalys LCA ; bauxitrest; avfallsvalorisering; naturligt förekommande radioaktiva ämnen NORM ; livscykeltänkande; LCA-programvara; cirkulär ekonomi; Planering och beslutsanalys; Planning and Decision Analysis;

    Sammanfattning : Bauxite residue, also known as red mud, is produced in large quantities as a result of alumina refining (the first stage in aluminium production), and is one of the world’s most abundant and important industrial wastes. As demand for aluminium continues to increase and space to store this residue diminishes, the potential to utilise bauxite residue as a secondary resource is increasingly being considered by the alumina industry. LÄS MER

  4. 3. Photochemical reactions of lignin: Opportunities for valorisation

    Författare :Alexander Michael Riddell; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Biomass; NMR; Lignin; Photolysis; Photochemistry; Kraft;

    Sammanfattning : Lignin is the second most abundant biopolymer after cellulose and is the largest bio-based source of aromatic compounds. However, its heterogeneous and recalcitrant structure makes it difficult to depolymerise for use in renewable chemicals production. LÄS MER

  5. 4. Valorisation of cereal by-products: a biorefinery approach

    Författare :Reskandi C. Rudjito; Franscisco Vilaplana; Amparo Jimenez-Quero; Mirjam Kabel; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Cereal by-products; arabinoxylan; ferulic acid; subcritical water extraction; enzymatic treatment; xylanases; prebiotics; Jordbruksbiprodukter; arabinoxylan; ferulsyra; subkritisk vattenextraktion; enzymatisk behandling; xylanaser; prebiotika; Bioteknologi; Biotechnology;

    Sammanfattning : Cereal by-products are abundant streams of underutilised biomass that have the potential be valorised into various industrial products by means of environmentally friendly processes. In this study, an integrated bioprocess combining subcritical water extraction (SWE) and enzymatic treatment (ET) was proposed to effectively extract arabinoxylans (AX) from cereal by-products. LÄS MER

  7. 5. Prevention and valorisation of surplus bread at the supplier-retailer interface

    Författare :Pedro Brancoli; Clara Cicatiello; Högskolan i Borås; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Food waste; Life cycle assessment; Bread; Prevention; Valorisation; Resource Recovery; Resursåtervinning;

    Sammanfattning : The global food system is a major driver of many environmental impacts, particularly those related to climate change, biodiversity loss, and depletion of freshwater resources. These problems are aggravated by a substantial waste of food throughout the supply chain, where retailers are responsible for large quantities of waste. LÄS MER