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Showing result 1 - 5 of 25 essays matching the above criteria.

  1. 1. Finding ways of optimizing coagulant dosage, for a more sustainable wastewater treatment process

    University essay from Lunds universitet/Kemiteknik (CI)

    Author : Hanna Sjöman; [2023]
    Keywords : Wastewater treatment process; coagulant dosage; COD; machine learning; water and environmental engineering; Technology and Engineering;

    Abstract : The wastewater treatment process at Oatly consists of several treatment steps of which, two are chemical treatment steps involving coagulation followed by flotation to remove phosphorous and COD. The coagulant dosage is mainly determined based on the operator’s experience and supported using results from jar tests. READ MORE

  3. 2. Chemical analysis of polycyclic aromatic compounds in plastic materials used in indoor environments

    University essay from Örebro universitet/Institutionen för naturvetenskap och teknik

    Author : Lania Yara; [2023]
    Keywords : polycyclic aromatic hydrocarbons; additives; plastics; artificial leather;

    Abstract : Human bodies are in constant interaction with materials containing known and unknown chemicals of hazardous behavior. One group of chemicals are polycyclic aromatic compounds (PACs) which can be present in both indoor and outdoor materials, commonly in plastics. READ MORE

  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

    University essay from Karlstads universitet/Avdelningen för kemiteknik

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

    Abstract : 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. READ MORE

  5. 4. Information design for product visualisations : Developement of a information design for carton boxes

    University essay from Luleå tekniska universitet/Institutionen för ekonomi, teknik, konst och samhälle

    Author : Sofia Johansson; [2021]
    Keywords : Pharma; Packaging; Information design; Interaction design Visualization; Usability; Product development; Product design; Master of Science in Engineering Design; Läkemedel; Läkemedelsbranchen; Informationsdesign Interaktionsdesign Visualiseringar; Användbarhet; Produktutveckling; Produktdesign; Civilingenjör Teknisk Design;

    Abstract : Eson Pac is a company that develops pharmaceutical packaging. One problem that thecompany currently has is that they do not have a basis for showing their products andthe information about them. This report presents the development of this to the company,through a degree project. READ MORE

  6. 5. Carbon Filters for Drinking Water Treatment – How Flow Rate and Empty Bed Contact Time Influence the Performance

    University essay from KTH/Kemiteknik

    Author : Wilma Bäckström Nilsson; [2021]
    Keywords : Carbon filter; GAC; BAC; Biofilm; Flow rate; NOM; EBCT; Kolfilter; GAC; PAC; biofilm; flödeshastighet; NOM; uppehållstid;

    Abstract : Dricksvatten är en essentiell del av ett hållbart samhälle. Därför är det viktigt att säkerställa säkert dricksvatten genom fungerande vattenreningsverk. En viktig förorening att behandla är NOM, som i sig är ofarligt men som kan producera farliga föroreningar. En teknik som används för behandling av NOM är kolfiltrering. READ MORE