Essays about: "degradation of precursors"

Showing result 6 - 10 of 10 essays containing the words degradation of precursors.

  1. 6. Analysis of Per- and Polyfluoroalkyl Substances (PFASs) in African Darter (Anhinga rufa) Eggs along Vaal River, South Africa : Comparison of Homologue and Isomer Profiles

    University essay from Örebro universitet/Institutionen för naturvetenskap och teknik

    Author : Felicia Fredriksson; [2016]
    Keywords : Per- and polyfluoroalkyl substances PFASs ; Perfluorooctane sulfonate PFOS ; linear and branched isomers; African Darter; Vaal River; bird eggs; Per- och polyfluoralkylerade substanser PFASs ; perfluoroktansulfonat PFOS ; linjära och grenade isomerer; African Darter; Vaal River; fågelägg;

    Abstract : Per- and polyfluoroalkyl substances (PFASs) are a group of toxic and persistent organic compounds. Their properties make them extremely resistant and they have been shown to have bioaccumulation and toxic properties in the environment and also to biomagnify in both aquatic and terrestrial food webs. READ MORE

  3. 7. Mass flows of per- and polyfluoroalkyl substances (PFASs) in a Swedish wastewater network and treatment plant

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : Linda Glimstedt; [2016]
    Keywords : per- and polyfluoroalkyl substances; PFAS; 6:2 FTSA; wastewater; wastewater network; wastewater treatment; WWTP; Uppsala; Kungsängsverket; per- och polyfluoroalkylerade substanser; PFAS; 6:2 FTSA; avloppsvatten; ledningsnät; avloppsnät; avloppsvattenrening; reningsverk; Uppsala; Kungsängsverket;

    Abstract : Per- and polyfluoroalkyl substances (PFASs) are man-made substances that hold unique properties. They are not only oil- and water repellants but also very resistant to degradation. Due to these properties, the applications are endless and PFASs can be found in a wide range of industrial applications and commercial products. READ MORE

  4. 8. Fate of pharmaceuticals and perfluoroalkyl substances during source separated wastewater treatment

    University essay from SLU/Dept. of Aquatic Sciences and Assessment

    Author : Alina Koch; [2015]
    Keywords : pharmaceuticals; PFASs; source separated systems; blackwater; latrine; anaerobic degradation; urea sanitation; fate;

    Abstract : In the past decade, water reuse and nutrient recycling of wastewater has gained more attention as sustainable water cycle management solutions, driven by the increasingly noticeable resource restrictions of the 21st century. One of these possible solutions is source separated treatment of latrine or blackwater for nutrient recovery. READ MORE

  5. 9. Perfluoroalkyl substances in the groundwater of Stockholm, the role of subsurface reactions.

    University essay from KTH/Mark- och vattenteknik

    Author : Eleonore Lövgren; [2012]
    Keywords : Perfluoroalkyl substances; PFOS; Groundwater; Adsorption; Pre-FOS; degradation of precursors;

    Abstract : Perfluoroalkyl acids (PFASs) are toxic pollutants ubiquitously found in the ecosystem. Recent investigations have focused on describing their environmental behavior and spreading. This includes transportation by water, where groundwater can continue to spread the contaminants a long time after the use has ended. READ MORE

  6. 10. BVOC emissions from a subarctic mountain birch : analysis of short term chamber measurements

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Erik Ahlberg; [2011]
    Keywords : fjällbjörk; flyktiga kolföreningar; geografi; naturgeografi; BVOC; mountain birch; volatile organic compounds; physical geography; geography; Earth and Environmental Sciences;

    Abstract : Flyktiga organiska föreningar som släpps ut från växter (BVOC- Biogenic volatile organic compounds) kan ha en stor påverkan på atmosfärisk kemi genom reaktioner som leder till ökad eller minskad ozonproduktion, och genom att de kan vara ett förstadium till aerosoler. De vanligaste flyktiga organiska föreningarna är isopren (2-metyl, 1,3-butadien) och dess derivat, terpener och terpenoider (isoprenoider). READ MORE