Essays about: "Aktivt kol"

Showing result 36 - 40 of 51 essays containing the words Aktivt kol.

  1. 36. Calibration and Application of Passive Sampling in Drinking Water for Perfluoroalkyl Substances

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : Caroline Persson; [2015]
    Keywords : Perfluoroalkyl substances PFASs ; passive sampling; Polar organic compound integrative sampler POCIS ; sampling rate; calibration; application; drinking water; Perfluoroalkylsubstanser PFAS ; passiv provtagning; Polar organic compound integrative sampler POCIS ; provtagningsshastighet; kalibrering; tillämpning;

    Abstract : Perfluoroalkyl substances (PFASs) are global environmental contaminants and a need for monitoring levels has arisen due to their persistency and their ability to bioaccumulate. One relatively novel method of monitoring for both long and short time intervals and generating time-weighted average (TWA) concentrations is passive sampling for which no power, maintenance and supervision is required. READ MORE

  3. 37. Evaluation of the Removal Efficiency of Perfluoroalkyl Substances in Drinking Water

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : Sophie Englund; [2015]
    Keywords : per- and polyfluoroalkyl substances; PFASs; anion exchange; activated carbon; drinking water; removal efficiency;

    Abstract : Per- and polyfluoroalkyl substances (PFASs) are chemicals that have been used for over 50 years. They are both hydrophobic and hydrophilic, which make them useful in a wide range of products, both in the domestic and industrial market. Recently, the global attention on PFASs has increased due to their possible harmful health effects on humans. READ MORE

  4. 38. Förgiftning orsakad av liljor hos katt

    University essay from SLU/Dept. of Biomedical Sciences and Veterinary Public Health

    Author : Anna Moreno Berggren; [2015]
    Keywords : liljeförgiftning; katt; Lilium; toxikologi; Hemerocallis; cat; toxicology;

    Abstract : Vissa liljors njurtoxiska effekter på katter har beskrivits i litteraturen i snart 25 år, trots detta är den toxiska komponenten i liljan inte identifierad. Toxinet verkar dock vara vattenlösligt och själva blomman har i studier visat sig vara mer toxisk än bladen, även om hela växten är giftigt. READ MORE

  5. 39. Evaluation of the Removal Efficiency of Per- and Polyfluoroalkyl Substances in Drinking Water using Nanofiltration Membranes, Active Carbon and Anion Exchange

    University essay from Uppsala universitet/Luft-, vatten- och landskapslära

    Author : Klara Lindegren; [2015]
    Keywords : PFASs; perfluoroalkyl substances; removal efficiency; NF; nanofiltration; membrane; GAC; granular activated carbon; AE; anion exchange; PFAS; perfluorerade alkylsubstanser; reningseffektivitet; NF; nanofiltrering; membran; GAC; granulärt aktivt kol; AE; jonbytarmassa;

    Abstract : Per- and polyfluoroalkyl substances (PFASs) is a group of man-made, highly persistent chemicals. Due to the specific surface-active attributes of these molecules, applications are numerous and feed an economically important industry. During the last decade, PFASs have been detected globally in the environment, living organisms and tap water. READ MORE

  6. 40. Computer Modeling of Thermodynamic Flows in Reactors for Activated Carbon Production

    University essay from Karlstads universitet/Institutionen för ingenjörs- och kemivetenskaper

    Author : Tim Andersson; [2014]
    Keywords : Modelling; flows; reactors; Modellering; flöden; reaktorer;

    Abstract : There's a big demand for activated carbon in Ghana, it's used for the country's mining industry as well as in a multitude of other applications. Currently all activated carbon is imported despite the fact that the country has a large supply of agricultural waste that could be used for its production. READ MORE