Sökning: "chemical pollution"

Visar resultat 16 - 20 av 137 uppsatser innehållade orden chemical pollution.

  1. 16. Characterization of PLA Nanoplastics, and Their Effects on Daphnia magna

    Master-uppsats, Lunds universitet/Centrum för analys och syntes

    Författare :Melinda Rydberg; [2022]
    Nyckelord :Polylactic acid; Polylactide; PLA; Nanoplastic; Daphnia magna; Toxicity; Polymer Technology; Chemistry; Earth and Environmental Sciences;

    Sammanfattning : As plastic pollution in aquatic environments keeps happening it has become more and more important to learn more about nanoparticles. Bio-based and biologically degradable plastics, such as polylactic acid (PLA), are gaining popularity and it is therefore important to determine whether they break down into nanoplastics or not. LÄS MER

  3. 17. Polymerization of isatin towards polymers for anion exchange membranes and gas separation applications

    Master-uppsats, Lunds universitet/Kemiska institutionen

    Författare :Simone Facchini; [2022]
    Nyckelord :organic chemistry; membranes; isatin; polymers; Chemistry;

    Sammanfattning : In a world where the problem of energy resources, pollution and all aspects related to these issues becomes more and more dominant, a greater commitment is needed in the search for solutions. The goal of this project is to make a contribution to the research and development of new materials to reduce the environmental impact in some fields. LÄS MER

  4. 18. Sustainable Shrimp Production: A Technology Feasibility Analysis through an Operational & Environmental Perspective

    Magister-uppsats, Högskolan i Gävle/Miljövetenskap

    Författare :christos chrysochoou; [2022]
    Nyckelord :Sustainability; Shrimp production; RAS; BIOFLOC; Aquaculture; Freshwater;

    Sammanfattning : To be able to satisfy current society’s needs without compromising future generations to satisfy their needs, is the key to sustainability. Many old practices and methods have had negative impact on the environment, including food production & cultivation activities with aquaculture being one of them. LÄS MER

  5. 19. Dioxin i mark : En undersökning kring saneringsmetoder in-situ och on-site.

    Kandidat-uppsats, Linnéuniversitetet/Institutionen för biologi och miljö (BOM)

    Författare :Anton Axelsson; [2022]
    Nyckelord :Dioxin in soil; Dioxin i mark;

    Sammanfattning : Dioxins are among the most toxic substances known to man. Dioxins are hydrophobic organic molecules that accumulate in the food chain and can cause cancer and reproductive difficulties for both animals and humans. A common method for remediating contaminated soil is excavation and transporting the masses to a landfill site. LÄS MER

  7. 20. Azithromycin effects on R. subcapitata on molecular levels : Ecotoxicological study on the effects of a pollutant on chlorophyll contents, pcna and cyt P450 genes expression

    Kandidat-uppsats, Högskolan i Skövde/Institutionen för biovetenskap

    Författare :Alaa Alsayed Ahmad; [2022]
    Nyckelord :;

    Sammanfattning : Antibiotics are considered a type of antimicrobial that particularly has an impact on bacteria or fungi in humans and animals. The widespread use of common antibiotics, combined with the fact that the majority of active antibiotics and their metabolites are water-soluble, results in persistent pollution in aquatic environments, as well as a potential threat to ecosystems. LÄS MER