Search for dissertations about: "sediment accumulation"

Showing result 1 - 5 of 66 swedish dissertations containing the words sediment accumulation.

  2. 1. Accumulation and Composition of Gully Pot Sediments under Varying Anthropogenic Activities

    Author : Haoyu Wei; Lian Lundy; Maria Viklander; David Butler; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Catch basin; Stormwater; Sediment; Urban runoff; Xenobiotics; Gully pot maintenance; Emerging pollutant; VA-teknik; Urban Water Engineering;

    Abstract : Gully pots (GPs) are an integral urban drainage component, contributing to conveying runoff from urban surfaces and reducing the load of solids and associated contaminants entering downstream piped systems and receiving waters. Over time, the silting-up of GPs impairs their hydraulic performance, increasing the risk of GP blockage-induced flood events and reducing solids retention performance. READ MORE

  4. 2. Diatom-rich sediment formation in lakes

    Author : Petra Zahajská; Kvartärgeologi; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Silicon; silica; diatom; biogenic silica; lake; sediment; stable Si isotopes; Ge Si; Yellowstone; Northern Sweden;

    Abstract : Unicellular photosynthetic golden algae called diatoms are one of the most abundant silicifying organisms. Diatoms take up silicon and build their frustules, in the form of biogenic silica (BSi), which have high preservation potential, and thus are found in sediments. READ MORE

  5. 3. Waterborne sediment and pollutant transport into lakes and accumulation in lake sediments

    Author : Gull Olli; Gia Destouni; Ingmar Renberg; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Catchment; environmental projects; erosion; eutrophication; phosphorous transport and retention; soil transport; sediment accumulation; Physical geography; Naturgeografi; Physical Geography; naturgeografi;

    Abstract : The general objective of this thesis is to contribute to the knowledge of the transport of sediments and pollutants from catchments to downstream water recipient systems and their accumulation in these systems, such as lakes and lake sediments. One part of the thesis studies the importance of drainage reach morphology and water flow for the phosphorous (P) transport and retention in the reaches, and the main controlling processes of the P retention in the reach sediments. READ MORE

  6. 4. Mercury accumulation in zoobenthos : an important mechanism for the transport of mercury from sediment to fish

    Author : Helena Parkman; Uppsala universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP;

    Abstract : .... READ MORE

  7. 5. Sediment sources and transport pathways, Lithuanian coastal zone

    Author : Milda Kairytè; Göteborgs universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; sediment; grain size; mineralogy; Lithuania; coastal zone; provenance; geology;

    Abstract : This thesis presents an investigation of recent sediments of the Lithuanian coastal zone, SE Baltic Sea. The main focus is upon the detailed documentation of grain size and mineralogy and the development of analytical methods using these essential and most common sediment parameters. READ MORE