Sökning: "Alum"

Visar resultat 1 - 5 av 44 uppsatser innehållade ordet Alum.

  1. 1. DE BYGGANDE KVINNORNA Adelskvinnors roll och inflytande i byggprocesser under 1600- och 1700-talet Linnea Wessberg Uppsats för

    Kandidat-uppsats, Göteborgs universitet/Institutionen för kulturvård

    Författare :Linnea Wessberg; [2023-11-07]
    Nyckelord :Noblewomen; 17th century; 18th century; building developer; Christina Piper; microhistory;

    Sammanfattning : This thesis is about the use of history and on how female building developers during the early modern period in Sweden are highlighted in the broad historiography. The aim is to examine, from a micro-historical perspective, female building developer’s role and influence in building projects and their involvement in building processes during the 17th and 18th centuries. LÄS MER

  3. 2. Trace element leaching from alum shale fines and red ash from Kvarntorp during a large column test

    Kandidat-uppsats, Örebro universitet/Institutionen för naturvetenskap och teknik

    Författare :Helena Rydfjord; [2022]
    Nyckelord :Alum shale; Leachate; Trace elements; Kvarntorp;

    Sammanfattning : Fuel shortage during the Second World War led to oil production in Kvarntorp, Kumla during 1942-1966 by pyrolyzing alum shale rich in pyrite, FeS2, and organic material such as kerogen. This production has led to a lot of waste laying deposited out in the open after the mining closed and has had negative environmental impact in the form of ongoing weathering and leaching of acidic water and leaching of trace elements into its surroundings. LÄS MER

  4. 3. Aluminium water extract levels from liquid packaging board : A comparative trial study between alum and polyaluminium chloride added as flocculants on BM7, Stora Enso Skoghall Mill

    Master-uppsats, Karlstads universitet/Avdelningen för kemiteknik

    Författare :Hanna Cassel; [2022]
    Nyckelord :aluminium; alum; polyaluminium chloride; PAC; liquid packaging board; BfR; water extract; aluminium; alun; polyaluminiumklorid; PAC; vätskekartong; BfR; vattenextrakt;

    Sammanfattning : The aluminium content of water extracts is an important aspect for the food safety of paper board, as the content indicates the ability of the paper board material to transfer aluminium to the packaged food product. Aluminium intake in humans and its health effects have been discussed for many years as some research has seen potential links between, among other things, high aluminium levels in the brain and the development of hereditary Alzheimer's. LÄS MER

  5. 4. 3D Geological Modelling of the Subsurface Adjacent to Cementa’s Quarry in Skövde, Sweden

    Master-uppsats, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Minna Larsson; [2022]
    Nyckelord :3D model; limestone; cement production; resistivity; photogrammetry; Skövde; 3D modell; kalksten; cementproduktion; resistivitet; fotogrammetri; Skövde;

    Sammanfattning : Limestone is one of the main components of cement production. Limestone has been quarried in Skövde, Sweden, since the end of 19th century and Cementa AB has been operating the quarry since 1973. Aside from limestone, there are also Alum shale of Cambrian age, mudstones as well as bentonite layers of Ordovician age present in the quarry. LÄS MER

  7. 5. ENVIRONMENTAL RADIOLOGICAL STUDIES OF KVARNTORPSHÖGEN Dose and Radiological Risk Assessments for Humans and Biota

    Master-uppsats,

    Författare :Felicia Hultqvist; [2021-04-06]
    Nyckelord :Medical physics; NORM; TENORM; Shale ash; Uranium; Polonium; Radiological risk; Humans; Biota;

    Sammanfattning : Background: The pile Kvarntorpshögen and the lakes Surpölen and Norrtorpssjön are the remains of an industry which mined and processed oil shales to extract oil during World War II. The pile mainly consists of shale ash, a waste from the production, while the lakes are nowadays water-filled mining pits. LÄS MER