Sökning: "organic contaminants"

Visar resultat 16 - 20 av 81 uppsatser innehållade orden organic contaminants.

  1. 16. GAC filter Design Criteria for Wastewater Treatment for Removal of Organic Micropollutants – A Literature Review

    Master-uppsats, Lunds universitet/Kemiteknik (CI)

    Författare :Bhargav Reddy Elavarthi; [2021]
    Nyckelord :micropollutants; activated carbon filtration; empty bed contact time EBCT ; pharmaceuticals; breakthrough curves; adsorption; PFOS; carbon use; water and environmental engineering; Technology and Engineering;

    Sammanfattning : Granular Activated Carbon (GAC) is nowadays suggested as a fourth (quaternary) treatment step at municipal wastewater treatment plants to remove certain chemicals and particularly organic micropollutants (OMPs). This work investigated the different factors that affect the performance of the GAC filter for the removal of micropollutants in a municipal wastewater treatment plant. LÄS MER

  3. 17. Utility of bark chips for removal of fluorinatedorganic compounds in water samples at a hazardouswaste management facility

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

    Författare :Maria Ekesbo; [2021]
    Nyckelord :Pine bark; PFAS; extractable organofluorine; contaminated water and sorption efficiency.;

    Sammanfattning : Per- and polyfluoroalkyl substances (PFAS) are synthetic compounds that have beenaround since 1940. They can be used in a variety of products such as fire-fighting foam,food packaging and cosmetic products. Many PFAS have potential toxic effects on bothhumans and animals which poses a problem due to their wide distribution and persistency. LÄS MER

  4. 18. Separation of Cobalt and Nickel using CYANEX 272 for Solvent Extraction

    Master-uppsats, KTH/Kemiteknik

    Författare :Caroline Kihlbom; [2021]
    Nyckelord :Solvent extraction; cobalt-nickel separation; CYANEX 272; pregnant leach solution; cobalt sulphate; Vätskevätskeextraktion; kobolt-nickel separation; CYANEX 272; laklösning; koboltsulfa;

    Sammanfattning : This project aimed to examine the separation of cobalt and nickel using solvent extraction (SX) with the extractant CYANEX 272 (C272). It was intended to investigate the Co-Ni separation in a sulphate-based leach solution in presence of other contaminants. LÄS MER

  5. 19. Urban stormwater ponds: Evaluation of heavy metals and organic pollutants in stormwater and stormwater sediments

    Master-uppsats, Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

    Författare :Felix Karlsson; [2021]
    Nyckelord :Urban stormwater; Stormwater ponds; Stormwater sediment; Heavy metals; Organic pollutants;

    Sammanfattning : Urban runoff is generated by precipitation of rain and snowmelt on impervious surfaces.  The increasing demand of urbanization causes contaminants to accumulate on roads,  roofs and pathways. In turn, as runoff wash off these surfaces, contaminants such as heavy metals, particles and organic pollutants end up in the stormwater. LÄS MER

  7. 20. Methods for measuring mercury in gas ebullition from fiber banks : A literature study

    Master-uppsats, KTH/Hållbar utveckling, miljövetenskap och teknik

    Författare :Diana Jonsson; [2021]
    Nyckelord :Fiber bank; fiber rich-sediment; mercury; contaminants; gas ebullition; pulp-fiber; wood industry; paper industry; environmental toxicity; wood waste;

    Sammanfattning : Mercury contamination is an environmental issue with high priority due to its high toxicity. In addition to the atmospheric deposition, several lakes and rivers in Sweden are contaminated as a result from wood and pulp-fiber industries which stretches back 200 years. LÄS MER