Sökning: "Metal recovery"

Visar resultat 1 - 5 av 58 uppsatser innehållade orden Metal recovery.

1. 1. Fällning av Råmaterial för Batteriåtervinning

   Kandidat-uppsats, KTH/Kemiteknik

   Författare :Aran Nur; Axel Bergvall; Gustaf Forsberg; Nemrit Kaur; [2023]
   Nyckelord :Battery recycling; Precipitation; Sustainability; Metal recovery; Simultaneous crystallization;

   Sammanfattning : This report explores simultaneous crystallization in multicomponent solutions to intensification of metal recovery in lithium-ion batteries. The main focus is to evaluate and compare the efficiency of sodium hydroxide and sodium carbonate as precipitating agents in recovering cobalt, nickel, manganese and lithium. LÄS MER

3. 2. Numerical Simulations of Metal Recovery for Battery Recycling

   Master-uppsats, KTH/Processteknologi

   Författare :Morgan Ölander; [2023]
   Nyckelord :Batteriåtervinning; Metall återvinning; Kristallisation; Computational Fluid Dynamics CFD ; Populationsbalansmodellering; Battery recycling; Metal recovery; Crystallisation; Computational Fluid Dynamics CFD ; Population balance modelling;

   Sammanfattning : Den pågående elektrifieringen av transport och samhälle kräver utveckling av nya metoder för återvinning av batterier. Hydrometallurgi som fokuserar på selektiv kristallisation av metaller är ett intressant alternativ för dessa ändamål. Dessa system kan studeras genom modellering och simulering. LÄS MER

4. 3. Is Sharing Caring? TikTok and Mental Health Videos : Content Analysis and Interview-Based Study

   Master-uppsats,

   Författare :Samuel Hooper; [2022]
   Nyckelord :Social media; TikTok; Mental Health; Storytelling;

   Sammanfattning : This degree project is particularly interested in how people with mental health difficulties use the social media platform TikTok to share their experiences. It aims to contribute to meaningful conversations about the role of social media concerning mental health awareness and the effectiveness of social media for social change. LÄS MER

5. 4. Purification of Volatile Organic Compounds in Channeled Ventilation Pipes at the Sysav Water Treatment Plant for Hazardous Waste

   Master-uppsats, Lunds universitet/Kemiteknik (CI)

   Författare :Erik Wiktorsson; [2022]
   Nyckelord :VOC; Zeolite; Catalytic combustion; Sysav; Chemical Engineering; Chemistry; Technology and Engineering;

   Sammanfattning : Several channeled emissions at the Sysav water treatment plant for hazardous waste as of December 2021 exceed permitted levels of unknown volatile organic compounds (VOCs) stated in the European Parliament councils’ directives 2010/75/EU. A range of possible treatment methods are briefly discussed before zeolite adsorption, and thermal regeneration followed by catalytic combustion is decided to be the method of greatest feasibility and is the subject of further investigation. LÄS MER

7. 5. Determination of bio-accessible amounts of metal trace elements in baby food using In vitro artificial digestion

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

   Författare :Marcus Andersson; [2022]
   Nyckelord :Food; toxic metals; children; bio-accumulation; artificial digestion; ICP-MS;

   Sammanfattning : Prefabricated baby food is under strict EU legislation by Commission Regulation (EC) 1881/2006 Setting maximum levels for certain contaminants in foodstuffs regarding the maximum allowed content of potentially harmful elements. For potentially toxic trace elements the regulated maximum content is regulated for lead, cadmium, mercury, inorganic tin, inorganic arsenic, cesium, copper and manganese. LÄS MER