Sökning: "Biodegradation"

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

  1. 1. Biokinetic Characterization of Methane Oxidizing Microbiomes Co-metabolizing Trace Organic Chemicals

    Master-uppsats, Lunds universitet/Teknisk mikrobiologi

    Författare :Hugo Möller; [2024]
    Nyckelord :Methanotrophs; organic micropollutants; co-metabolism; biodegradation; applied microbiology; Earth and Environmental Sciences;

    Sammanfattning : The presence of organic micropollutants (OMPs) in wastewater effluents is concerning, as they pose a threat to human and aquatic health. Biodegradation via methane-oxidizing bacteria (MOB) is an attractive option, as the method is cheap and effective. MOB can co-metabolize a variety of substrates, there among organic micropollutants. LÄS MER

  3. 2. Comparing chemical biodegradation assessed in water-sediment suspensions

    Master-uppsats, Stockholms universitet/Institutionen för miljövetenskap

    Författare :Kangli Lin; [2023]
    Nyckelord :water- sediment suspensions; OECD 309; biodegradation; sediment concentrations; bacterial cell count;

    Sammanfattning : Many chemicals are released into surface water and biodegradation is one important mechanismto remove the contaminants. Their actual concentrations in water depend on their persistence.The OECD 309 test is the most recognized method to assess the persistence of chemicals in theaquatic environment. LÄS MER

  4. 3. Reinforced Biodegradable Polymer Composite Material based on Japanese Washi Paper

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Institutionen för kemi - Ångström

    Författare :Lovisa Rova; [2022]
    Nyckelord :biodegradable; polymer; composite; paper-based; washi; poly butylene succinate ; biodegradation;

    Sammanfattning : In this study, traditional Japanese washi paper was sandwiched with poly(butylene succinate)(PBS) in order to produce a paper-based composite material that can be biologically degraded. Specimens were prepared using a hot press, and the mechanical properties of the washi paperand the new composite material were investigated by tensile tests. LÄS MER

  5. 4. Effects of plastic pollution on leaf litter decomposition in Swedish freshwater ecosystems : a field study addressing recently and globally emerging pollutants

    Master-uppsats, SLU/Dept. of Aquatic Sciences and Assessment

    Författare :Martina Stangl; [2022]
    Nyckelord :Microplastics; Face masks; Ecosystem functioning; Leaf decomposition; Field study;

    Sammanfattning : Plastic pollution is recognized as an increasing environmental problem, but few studies have addressed impacts on ecosystem functions, and very few have been conducted in the field. This study investigated the effects of polypropylene particles derived from disposable face masks on in-situ leaf litter decomposition processes in freshwater ecosystems. LÄS MER

  7. 5. In vitro study of Biodegradation in Mg-alloys by Isothermal Calorimetry

    Master-uppsats, Lunds universitet/Industriell Produktion

    Författare :Prasad Rajendra Kekare; Akshat Kulkarni; [2021]
    Nyckelord :Isothermal Calorimetry; Degradation of Mg Alloys; Supersaturated solid solution SSSS ; Corrosion rate; Aqueous corrosion.; Technology and Engineering;

    Sammanfattning : Magnesium corrosion in an aqueous environment is a multi-layer, complex process. A literature survey shows significant gaps and the modelling work reported indicates a lack of clarity in understanding the corrosion process. LÄS MER