Essays about: "Dissolved organic matter"

Showing result 21 - 25 of 75 essays containing the words Dissolved organic matter.

  1. 21. Photo-chemical reactivity of dissolved organic carbon in subarctic lakes from northern Sweden

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Hani Younes; [2020]
    Keywords : Photo-reactivity; DOM; subarctic lakes; EEM-PARAFAC. Brownification; Earth and Environmental Sciences;

    Abstract : Dissolved organic matter (DOM) is the major absorber of sunlight in most natural waters and a critical component of the carbon cycle in aquatic systems. The photochemical decomposition of DOM can have a significant impact on the landscape-atmosphere carbon exchange. READ MORE

  3. 22. Comparison and optimization of removal of natural organic carbon from raw water with ultrafiltration in pilot scale experiments

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

    Author : Tamara Kristin Voigtländer; [2020]
    Keywords : Dissolved Organic Carbon; raw water quality; online coagulation; high-frequency sonde; drinking water treatment;

    Abstract : The removal of natural organic matter (NOM) from Swedish surface waters has become a large challenge for drinking water treatment plants (DWTP), as NOM content has been rising in surface waters all over Northern Europe. In the last decade, membrane technologies, often combined with coagulation, have become more and more common. READ MORE

  4. 23. Factors controlling the sorption of Cs, Ni and U in soil : A statistical analysis with experimental sorption data of caesium, nickel and uranium in soils from the Laxemar area

    University essay from KTH/Hållbar utveckling, miljövetenskap och teknik

    Author : Emilia Johansson; [2020]
    Keywords : correlation analysis; Kd values; partition coefficient; Pearson correlation; radionuclide; soil; sorption;

    Abstract : In the fall of 2006, soils from three small valleys in the Laxemar/Oskarshamn area were sampled. A total of eight composite samples were characterized for a number of soil parameters that are important for geochemical sorption and were later also used in batch sorption experiments. READ MORE

  5. 24. Acid Sulphate Soil and Framboidal Pyrite in Northern Sweden

    University essay from Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

    Author : Hind Rizq; [2020]
    Keywords : Acid Sulphate soil; Framboidal pyrite; Cubic pyrite; Organic matter; Skellefteå; Luleå;

    Abstract : A soil profile was taken close to Skellefteå in Västerbotten, northern Sweden. The profile has an upper oxidised zone, 30 cm thick, underlain by a transitions zone, in this paper called accumulation zone, and a reduced zone at 160 cm depth. READ MORE

  6. 25. Factors Controlling Mercury Concentration in Rivers in the Mackenzie River Basin, Northwestern Canada

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

    Author : Jack Hewitt; [2020]
    Keywords : mercury; Mackenzie River Basin; regression; Canada; community-based water monitoring;

    Abstract : Mercury (Hg) in rivers and streams of the Mackenzie River Basin (MRB) presents a risk to fish, aquatic mammals, and humans. This thesis makes use of newly-released water quality data, including total mercury (THg) and dissolved mercury (DHg), gathered through the NWT-Wide Community-based Water Quality Monitoring (CBM) program. READ MORE