Essays about: "Zinc Oxide"

Showing result 21 - 25 of 47 essays containing the words Zinc Oxide.

  1. 21. Rengöring av fodernedfallsrör i tillväxtavdelningen : kan det ha en positiv inverkan på grisens hälsa och tillväxt?

    University essay from SLU/Dept. of Biosystems and Technology (from 130101)

    Author : Jennifer Sköld; [2018]
    Keywords : tillväxt; avvänjning; rengöring; foder; avvänjningsvikt; avvänjningsdiarré;

    Abstract : Avvänjningen är en av de mest avgörande perioderna i en gris liv. Den hänger samman med en ökad risk för sjukdomar som t.ex. avvänjningsdiarré och en ökad antibiotikaanvändning. READ MORE

  3. 22. Degradation of Microplastic Residuals in Water by Visible Light Photocatalysis

    University essay from KTH/Hållbar utveckling, miljövetenskap och teknik

    Author : Tajkia Syeed Tofa; [2018]
    Keywords : Microplastics; Low density Polyethylene LDPE ; Heterogeneous photocatalytic degradation; Zinc oxide nanorods; Visible light.;

    Abstract : Microplastic (MP) pollution has recently been recognized as a threat to the biosphere including humans due to its widespread distribution, persistent nature and infinitesimal size. This study focused on the solid phase degradation of microplastic residues (particularly low density polyethylene, LDPE) in water through heterogeneous photocatalysis process by designed photocatalysts of zinc oxide nanorods (ZnO NRs) and platinum nanoparticles deposited on zincoxide nanorods (Pt NPs-ZnO NRs) under visible light irradiation. READ MORE

  4. 23. Study of leaching behavior of tin in Zinc-clinker and Mixed Oxide

    University essay from Luleå tekniska universitet/Industriell miljö- och processteknik

    Author : Olle Bertilsson; [2018]
    Keywords : Leaching; tin; Sn; Zn-clinker; Mixed Oxide; sulfuric acid; Zn; residue; H2SO4; Boliden;

    Abstract : Due to the increasing usage of Sn in different electronics, such as solders and in touchscreens, together with Boliden Rönnskärs increased intake of electronic waste as a secondaryraw material, a Zn-containing product called Zn-clinker has increasing amounts of Sn. TheZn-clinker is shipped to Boliden Zn-smelter in Odda, where the Zn-clinker is mixed in withcalcine (roasted concentrate) and leached in several steps. READ MORE

  5. 24. Geometallurgical approach to understand how the variability in mineralogy at Zinkgruvan orebodies affects the need for copper activation in the bulk rougher-scavenger flotation

    University essay from Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

    Author : Ivan Belo Fernandes; [2017]
    Keywords : Geometallurgy; Zinkgruvan; Zn-Pb flotation; ore variability; mineral chemistry; pyrrhotite; magnetic separation;

    Abstract : Zinkgruvan is a Pb-Zn-Ag deposit located in south-central Sweden, owned and operated by Lundin Mining. The ore is beneficiated by a collective-selective flotation circuit, recovering both galena and sphalerite in a bulk rougher-scavenger flotation stage and later on separating them into two final products. READ MORE

  6. 25. Softening Efficacy of Various Solvents on Gutta-percha and Root Canal Sealer

    University essay from Umeå universitet/Institutionen för odontologi; Umeå universitet/Tandläkarutbildning

    Author : Andreas Boman; Jakob Selvin; [2016]
    Keywords : Endodontic treatment; endodontic retreatment; gutta-percha solvent; chloroform endodontic; sealer antimicrobial;

    Abstract : Solvents have been used in endodontic retreatment for a long time and the dissolving effect is well proven. Latterly chloroform has come in a bad light due to its possible carcinogenicity. Despite the negative health effect it is still used in dental environment. READ MORE