Search for dissertations about: "leaching"

Showing result 6 - 10 of 313 swedish dissertations containing the word leaching.

  2. 6. Leaching of Hazardous Substances from Concrete Constituents and Painted Wood Panels

    Author : Åse Togerö; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; thiocyanate; biocides; leaching; runoff; admixture; coatings; resin acids; blast furnace slag; toxic; fly ash; cement; tall oil; diffusion paints; concrete;

    Abstract : At a time of increased concern about environmental issues in the building sector, it is essential to know the environmental performance of different building materials. Knowledge of the possible release of hazardous substances in building materials is scarce, and these aspects have often been neglected in environmental assessment methods. READ MORE

  4. 7. Leaching and solvent extraction of rare earth metals from fluorescent lamp waste

    Author : Cristian Tunsu; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; rare earth metals; leaching; waste treatment; solvent extraction; Cyanex 923; florescent lamp waste; recycling;

    Abstract : With the rapid advancement of technology, the demand for elements such as rare earth metals (REMs) has increased considerably during the last decade. Many countries are facing problems securing sustainable supplies, a fact acknowledged in many publications. READ MORE

  5. 8. Minimisation of Chromium Leaching from Low-Alloy Electric Arc Furnace Slag by Mineral Modifications

    Author : Ida Strandkvist; Fredrik Engström; Rainer Backman; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; slag; leaching; minerals; Process Metallurgy; Processmetallurgi;

    Abstract : Iron and steel are produced continuously as a vital part of modern life. The largest by-product of metal production is slag. Slag is an essential part of the production of steel since, in the furnace, the molten slag removes impurities from the metal. When the slag which consists of oxides, solidifies minerals form. READ MORE

  6. 9. Recycling kraft pulp mill solid residues to the forest : treatment and leaching characteristics

    Author : Maryam Mahmoudkhani; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; surface area; sintering; lime mud; pellet; mass transfer; kinetics; modeling; strength; leaching; recycling; green liquor sludge;

    Abstract : .... READ MORE

  7. 10. Recycling Inorganic Residues from Wood-based Industries to the Forest- study of Treatment Techniques and Leaching Characteristics

    Author : Maryam Mahmoudkhani; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Diffusion; Treatment techniques; Alkaline solid residues; Heterogeneous reactions; Modified column-pHstat test; Recycling; Leaching; Characterization; Field test;

    Abstract : Abstract. In order to minimize the negative impact of loss of nutrients in the forest soil (when harvesting the wood), inorganic solid residues, from wood-based industries, have to be recycled back to the forest soil. READ MORE