Sökning: "Kow"

Visar resultat 1 - 5 av 6 uppsatser innehållade ordet Kow.

  1. 1. Optimizing Sample Dissolution Methods of Low Water Soluble Intermediate Organic Compounds to Support Environmental Risk Assessment during Active Pharmaceutical Ingredient Manufacturing.

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

    Författare :Warda Mohammed; [2021]
    Nyckelord :Active pharmaceutical ingredient; API; total organic content; TOC; chemical oxygen demand COD; biological oxygen demand; BOD; Microtox; octanol-water partition coefficient; Kow; solubility.;

    Sammanfattning : This project focus on investigating the dissolution of low water-soluble intermediate organic compounds called active pharmaceutical ingredients (API) and organic substances that are manufactured by a pharmaceutical company, Cambrex Karlskoga in Sweden. Several dissolution methods were used and evaluated using methods including total organic carbon (TOC), chemical oxygen demand (COD), biochemical oxygen demand (BOD) and Microtox toxicity test. LÄS MER

  3. 2. Method Development for Sample Preparation of Fish for Non-target Analysis of Hydrophobic Organic Pollutants

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

    Författare :Bergdís Björk Bæringsdóttir; [2020]
    Nyckelord :;

    Sammanfattning : Monitoring methods for environmental pollutants are mostly performed with targeted analysis which relies on predetermined compounds. This can cause an underestimation of possible toxicants as it might not detect undiscovered compounds such as breakdown products of other chemicals. LÄS MER

  4. 3. Spreading of persistent organic pollutants from fiber bank sediments

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

    Författare :Lisa Vogel; [2015]
    Nyckelord :persistent organic pollutants; PCB; DDT; HCB; fiber bank; paper and pulp; POM; log Kd; bioaccumulation; pore water concentration; Marenzelleria spp.; Saduria entomon;

    Sammanfattning : Discharge of untreated wastewater from paper and pulp industries have led to large environmental impacts on the coastal sediments in Västernorrland, Sweden. Dissolved fibers caused the formation of large fiber banks and fiber influenced sediment areas, which proved to be highly affected by contamination with persistent organic pollutants (POPs). LÄS MER

  5. 4. The bioavailability of perfluoroalkyl substances (PFASs) and polycyclic aromatic hydrocarbons (PAHs) in soil to Eisenia fetida and Cucurbita pepo

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

    Författare :Masoumeh Moshfeghi Mohammadi; [2015]
    Nyckelord :PFASs; PAHs; bioavailability; BAF; BSAF; BCF; earthworm; zucchini;

    Sammanfattning : Persistent organic pollutants (POPs) are organic chemicals of great concern because of their persistency, bioaccumulation and toxic effects both in the environment and to humans. Two groups of organic chemicals that are partly listed as POPs are perfluoroalkyl substances (PFASs) and polycyclic aromatic hydrocarbons (PAHs). LÄS MER

  7. 5. Importance of dissolved organic carbon for transport of organic contaminants in groundwater

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Luft-, vatten- och landskapslära

    Författare :Lisa Söderberg; [2013]
    Nyckelord :modeling; FEFLOW; sorption; KDOC; phenanthrene; DEHP; modellering; FEFLOW; adsorption; KDOC; fenatren; DEHP;

    Sammanfattning : The need of understanding transport processes of contaminants in groundwater has grownalong with the discovering of contamination of soil and groundwater due to industrialization.Mobility of an organic contaminant in the soil is affected by its partitioning to dissolvedorganic carbon, DOC. LÄS MER