Essays about: "hydrothermal"

Showing result 16 - 20 of 89 essays containing the word hydrothermal.

  1. 16. Large Surface Area of Graphene with Controlled Interlayer Spacing

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Hari Hara Sudhan Thangavelu; [2022]
    Keywords : pillared graphene; porous structure; energy storage; interlayer galleries.; pelargrafen; porös struktur; energilagring; mellanskiktsgallerier.;

    Abstract : Unique layered structure with excellent electrical, mechanical, thermal, and optical properties gives graphene widespread application. Graphene based materials are extensively studied in the field of energy storage such as batteries, hydrogen storage and supercapacitors (SC’s). READ MORE

  3. 17. Uranium Mineralizations at Kiirunavaara,Northernmost Sweden

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : Diego Segovia Menard; [2022]
    Keywords : kiirunavaara; uranium; EPMA; water; hydrothermal;

    Abstract : In recent years, a variably high amount of uranium (U) and radon (Rn) were found in the water and airof the Kiirunavaara mine in Kiruna, northern Sweden. The Swedish Agency for Marine and WaterManagement (Havs och vattenmyndigheten) has maximum limits for “special polluting substances” inwater that is released to natural recipients (HVMFS 2019:25), therefore, the mining company LKAB,owner and operator of the Kiirunavaara mine, decided to conduct a study to investigate the issueregarding these findings, triggering this master thesis. READ MORE

  4. 18. Lejarfjället Garnet(?) Peridotite – Origin and Petrological Characterization of Symplectitic Aggregates in Ultramafic Rocks

    University essay from Uppsala universitet/Mineralogi, petrologi och tektonik

    Author : Felicia Eriksson; [2022]
    Keywords : ultramafic; high-pressure metamorphism; peridotite; garnet breakdown; Scandinavian Caledonides; ultramafisk; högtrycks metamorfos; peridotit; granat; skandinaviska kaledoniderna;

    Abstract : Ultramafic rocks are abundant in the Earth’s mantle but rare on the surface. Since no in-situ samples from the mantle can be collected, mantle rocks provide knowledge of mechanisms operating in the mantle and large-scale processes that brought them up to the surface. READ MORE

  5. 19. Characterization of the cobalt content in zinc ore from Zinkgruvan, Sweden

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

    Author : Ingeborg Hjorth; [2022]
    Keywords : Zinkgruvan; Bergslagen; Cobalt; Sphalerite; Pyrrhotite; Safflorite;

    Abstract : Zinkgruvan is a stratiform Zn-Pb-Ag deposit located in the Bergslagen ore district in south central Sweden. Elevated concentrations of cobalt have been detected in zinc ore from the mine. READ MORE

  6. 20. The prospects of using acoustic particle separation techniques to separate heavy metals from lake- and seabed sediments

    University essay from KTH/Marcus Wallenberg Laboratoriet MWL

    Author : Ohan Lundblad; [2021]
    Keywords : acoustic particle separation; ultrasound; acoustics; particle separation; akustisk partikelseparation; ultraljud; akustik; partikelseparation; akustisk partikelseparationsteknik; akustisk separationsteknik;

    Abstract : This work aims to investigate if it is realistic to use acoustic particle separation techniques for separating heavy-metals from pump-dredged seabed sediments on a large scale. A premise for the project has been that the material should undergo hydrothermal carbonization (HTC) before acoustic treatment. READ MORE