Sökning: "Hazardous materials"

Visar resultat 1 - 5 av 98 avhandlingar innehållade orden Hazardous materials.

  1. 1. ICME guided study of mass transport in production and application of cemented carbides

    Författare :Armin Salmasi; Henrik Larsson; Lars Höglund; Andreas Blomqvist; Joakim Odqvist; John Ågren; José Garcia; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; cemented carbides; non-homogeneous structures; liquid phase migration; ICME; CALPHAD; materials design; viscosity; diffusion; mass transport; thermodynamics; kinetics; ab-initio; Materials Science and Engineering; Teknisk materialvetenskap;

    Sammanfattning : Cemented carbides are metallic composites consisting of a WC hard phase and a ductile binder, usually Co-based, produced by powder metallurgy and sintering. Cemented carbides are an essential part of modern material and manufacturing processes. LÄS MER

  3. 2. Structured Carbon-Alkaline Earth Metal Halides Composites for Ammonia Storage

    Författare :Zhejian Cao; Farid Akhtar; Mamoun Taher; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; ammonia; MgCl2; SrCl2; graphene foam; porous structure; Materialteknik; Engineering Materials;

    Sammanfattning : NOx (NO, NO2) is one of the most harmful air-pollutants from exhaust, resulting in series of environmental problems as well as severe healthy issues for human beings. Selective catalytic reduction (SCR) system is a common approach to eliminate NOx onboard by using ammonia as a reductant. LÄS MER

  4. 3. Recycling of Steel Grinding Swarf via Production of Iron Chloride Coagulants for Water Treatment

    Författare :Thomas Ottink; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Water Treatment; Ferric Chloride; Hazardous waste; Leaching; Hydrometallurgy;

    Sammanfattning : Grinding swarf is a hazardous waste generated in the manufacturing industry when making products out of iron and steel. Annually 10-12 million tons are generated worldwide, and these numbers are projected to grow with steel production and industrialization of developing countries. LÄS MER

  5. 4. Towards Abatement of Selected Emissions from Metals Manufacturing

    Författare :Diana Orrling; Seshadri Seetharaman; S. Subramanian; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; mercury; zinc; iron; copper; sulfur dioxide; adsorption; pollution; spectroscopy; thermal desorption; polycrystalline; surfaces; Materials science; Teknisk materialvetenskap;

    Sammanfattning : Although the metallurgical industry has made great strides in the reduction of unwanted emissions to the atmosphere as a result of production processes, significant challenges still exist. From a global perspective, even large reductions in emissions per produced ton become immaterial when considering that the total world production of metals continues to increase. LÄS MER

  7. 5. Leaching results in the assessement of slag and rock materials as construction material

    Författare :Mia Tossavainen; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Mineralteknik; Mineral Processing;

    Sammanfattning : Extraction of rock material and ore for construction and metal production involves large quantities of wastes and by-products. Iron- and steelmaking slag has durability qualities and latent cementitious properties which are positive in construction. LÄS MER