Essays about: "återvinning"

Showing result 1 - 5 of 109 essays containing the word återvinning.

  1. 1. Chemical recycling of cotton-based waste textiles by sulfuric acid hydrolysis

    University essay from Lunds universitet/Kemiteknik (CI)

    Author : Edvin Ruuth; [2020]
    Keywords : recycling; hydrolysis; cotton; waste textiles; sulfuric acid; glucose; chemical engineering; kemiteknik; Technology and Engineering;

    Abstract : Large amounts of waste textiles are produced annually, of which only a small fraction is recycled currently. The purpose of this study was to develop a method to recycle cotton-based waste textiles chemically that can be coupled to the production of biofuels or green chemicals. READ MORE

  2. 2. Defining requirements of PET scrap for open loop recycling of post-industrial waste

    University essay from Lunds universitet/Kemiteknik (CI)

    Author : Josephine Digné; [2020]
    Keywords : Chemical Engineering; plastics; thermoplastics; PET; polyethylene terephthalate; foamed plastics; recycling; post-industrial waste; circular economy; återvinning; kemiteknik; Technology and Engineering;

    Abstract : To reduce the environmental impact and minimize the exploitation of the depleting re-sources, the transition to a circular economy is vital. It proposes an economy of reduced ma-terial consumption and increased reuse and recycling of plastics and other materials. READ MORE

  3. 3. Persuasive Technology for Appealing to the Motivation of Chinese for Garbage Classification

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Dingxu Bai; [2020]
    Keywords : ;

    Abstract : The amount of garbage is rapidly increasing in China  nowadays, which has led to severe environmental  problems. Garbage recycling is imperative in dealing with the problem and garbage classification plays an essential role in the recycling process. However, most Chinese have weak awareness of garbage classification. READ MORE

  4. 4. Analyses of microbial community in nutrient solution with biofertilizer and risk assessment of establishment of pathogens

    University essay from Lunds universitet/Teknisk mikrobiologi

    Author : Julia Södergren; [2020]
    Keywords : Biofertilizer; hydroponic; 16S rRNa sequencing; challenge testing; calorimetry; applied microbiology; teknisk mikrobiologi; Agriculture and Food Sciences; Technology and Engineering;

    Abstract : The societal interest for a more sustainable and circular food production is increasing. Hydroponic farming is an alternative way of growing vegetables that can bring farming into urban environments, reducing long transports of food. In parallel, the focus in waste treatment is being more directed toward resource recovery. READ MORE

  5. 5. Feasibility Study for Production of Biogas from Wastewater and Sewage Sludge : Development of a Sustainability Assessment Framework and its Application

    University essay from KTH/Energiteknik

    Author : Akash Som Gupta; [2020]
    Keywords : resource recovery; wastewater treatment; biogas; anaerobic digestion; energy recovery; sustainability assessment; SDG;

    Abstract : Clean water and renewable energy are essential requirements to build resilience towards the adverse effects of climate change and global warming. Advanced wastewater treatment options may provide a unique opportunity to recover various useful resources such as energy (biogas), fertilizers, minerals, and metals embedded in the wastewater stream. READ MORE