Sökning: "copper leaching"

Visar resultat 6 - 10 av 26 uppsatser innehållade orden copper leaching.

  1. 6. Recovery of Cobalt and Copper from Zambia Slag via Sulphidisation with Gypsum

    Master-uppsats, KTH/Materialvetenskap

    Författare :Lloyd Masuzyo Mseteka; [2021]
    Nyckelord :;

    Sammanfattning : The main objective of this research was to recover copper and cobalt from slags coming from copper processing on the Copperbelt province of Zambia. Pyrometallurgical processing of copper sulphide concentrate generates huge tonnes of slag wastes. LÄS MER

  3. 7. 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

  4. 8. Evaluation of a gross pollutant trap-biofilter stormwater treatment train : The Role Of Calcium Carbonate, Vegetation And Pre-Treatment Facility

    Master-uppsats, Luleå tekniska universitet/Arkitektur och vatten

    Författare :Sofia Fahlbeck Carlsson; [2021]
    Nyckelord :Bioretention; stormwater; stormwater treatment; stormwater pollutants; heavy metals; phosphorus; Biofilter; dagvatten; dagvattenrening; dagvattenföroreningar; tungmetaller; fosfor;

    Sammanfattning : Development of cities, new buildings and other impervious surfaces entails increased stormwater flows, volumes and pollutant loads. Heavy metals, nutrients, sediments and salt are common pollutants in stormwater. LÄS MER

  5. 9. Tuning the composition of metallic nanoparticles for catalytic applications

    Master-uppsats, KTH/Kemi

    Författare :Anthony Ropp; [2021]
    Nyckelord :catalysis; nanoparticles; frustrated Lewis pairs; synthesis; core-shell;

    Sammanfattning : Industries’ interest in nanomaterials is tremendous and catalysis is one of their applications. Catalysts allow reactions to occur under milder conditions, avoiding committing excessive heat or pressure to foster reactions. LÄS MER

  7. 10. Temporal and spatial trends of heavy metal leakage from acid sulfate soils : Leakage of Ni, Zn, Cu and Fe to freshwater and marine sediments, North-eastern Sweden

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

    Författare :Bella Blomkvist; [2020]
    Nyckelord :acid sulfate soils; leaching; Persöfjärden; sulfide oxidation; metal pollution;

    Sammanfattning : Acid Sulfate soils (AS) are recognized for being a source of acidity in freshwaters in America, Europe, Australia, and Asia. Apart from the problematic acid leachate, AS soil serves as a possible source of toxic heavy metals in freshwaters, a problem which has received far less attention than problems related to acid leachate. LÄS MER