Sökning: "Zinc oxide"

Visar resultat 11 - 15 av 49 uppsatser innehållade orden Zinc oxide.

  1. 11. Scrubbing of sulfur dioxide from secondary process gases in a copper smelter

    Master-uppsats, KTH/Kemiteknik

    Författare :Obiora Okolo; [2021]
    Nyckelord :sulfur dioxide; scrubbing; smelter; process industry; flue gas desulfurization; svaveldioxid; skrubbning; smältverk; processindustri; rökgasavsvavling;

    Sammanfattning : Processindustrin är den största källan för utsläpp av svaveldioxid (SO2) i Sverige, vilket även inkluderar icke­järnmetallindustrin. Kopparsmältverket Boliden Rönnskär har ett miljötillstånd som tillåter SO2­-utsläpp på maximalt 3500 ton/år, en gräns som Rönnskär har legat nära under de senaste åren. LÄS MER

  3. 12. Prussian White In Sodium- Ion Batteries : An evaluation of organic and inorganic coatings on active material particles

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Philip Jansson; [2021]
    Nyckelord :Sodium-ion batteries; Prussian White; Coating; Surface engineering; Zinc oxide; Polyaniline; Natriumjonbatterier; Berlinervitt; Beläggning; Ytmodifiering; Zinkoxid; Polyanilin;

    Sammanfattning : Emerging markets in electrochemical energy storage, such as stationary grid storage, coupled with future concerns over the availability of lithium, places sodium-ion battery (SIB) technologies at a unique position to enter the market as a commercially viable alternative. Current shortcomings in the performance of cathode materials in SIBs would necessarily need to be addressed if this technology is to compete with existing commercial lithium-ion battery counterparts. LÄS MER

  4. 13. Barrier properties of model coatings using recycled iron oxide pigment

    Uppsats för yrkesexamina på grundnivå, KTH/Skolan för kemi, bioteknologi och hälsa (CBH)

    Författare :Nathalie Hagenfjärd; [2021]
    Nyckelord :Organic coatings; Iron oxide pigment; EIS; Barrier properties;

    Sammanfattning : The aim of this study was to compare the barrier properties of organic coatings with the same polymer matrix but different types of iron oxide particles, commercial and recycled. The work was carried out for the company SSAB with the aim of investigating whether the pigment Merox ferric oxide, which is produced in-house at the company during the pickling process, can be used and replace commercial iron oxide pigment. LÄS MER

  5. 14. The Effects of Depth and Hydrological Connectivity on Heavy Metal Loading in Riparian Zones

    Magister-uppsats, Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Författare :Emily Rose Williams; [2021]
    Nyckelord :Riparian zones; metal elements in soils; Discrete Riparian Inflow Zones DRIPs ; riparian soils; metal retention;

    Sammanfattning : The area between a stream and land is known as a riparian zone. These zones are highly dynamic whichcarry and accumulate heavy metals and environmental contaminants. Discrete Riparian Input Zones(DRIPs) are a subset of such zones that carry concentrated amounts of water into streams at discrete points. LÄS MER

  7. 15. Enhancing the degradation rate of microplastics and organizing a study visit about sustainability

    Uppsats för yrkesexamina på avancerad nivå, KTH/Lärande

    Författare :Marianne Al-Ghorabi; [2020]
    Nyckelord :Accommodation; assimilation; Fenton reaction; microplastics; polypropylene; polystyrene; proximal development zone; study visit; visible light photocatalysis; zinc oxide nanorods; Ackommodation; assimilation; den proximala utvecklingszonen; Fenton reaktion; fotokatalys med synligt ljus; mikroplast; polypropalen; polystyren; studiebesök; zinkoxid nanorör.;

    Sammanfattning : Microplastics take hundreds to thousands of years to degrade in nature, and pose a threat to the environment. A photocatalytical degradation method have been developed to take advantage of solar light to degrade microplastics, however it takes several months to degrade microplastics with the process. LÄS MER