Sökning: "stormwater pond"

Visar resultat 1 - 5 av 6 avhandlingar innehållade orden stormwater pond.

  1. 1. Watershed-based design of stormwater treatment facilities model development and applications

    Detta är en avhandling från Institutionen för anläggning och miljö

    Författare :Thomas Larm; KTH.; [2000]
    Nyckelord :watershed; stormwater; runoff; pollutant transport; design criteria; constructed wetland; wet pond; filter strip; swale; reduction efficiency; monitoring program; StormTac;

    Sammanfattning : .... LÄS MER

  2. 2. Three-Dimensional Simulation and Physical Modelling of Flows in Detention Tanks - Studies of Flow Pattern, Residence Time and Sedimentation

    Detta är en avhandling från Institutionen för anläggning och miljö

    Författare :Åsa Adamsson; [2004]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; tracer study; pond; numerical simulation; particle tracking; CFD; bed shear stress; storage tank; stormwater; detention tank; flow pattern;

    Sammanfattning : Improving effluent water quality to receiving waters using stormwater ponds and storage tanks is acknowledged to be an effective method. The performance of the method depends however on flow conditions such as velocity distribution, short-circuiting currents and the volume through which the influent water flows, the so called effective volume. LÄS MER

  3. 3. Contribution of stormwater ponds for road runoff to aquatic biodiversity

    Detta är en avhandling från ; Chalmers tekniska högskola; Gothenburg

    Författare :Zhenhua Sun; [2017]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; road salt; stormwater ponds; water quality; sediments; road runoff; metals; pond size; aquatic biodiversity;

    Sammanfattning : The increased recognition that roads may impair the aquatic environment and ecosystems has led to a shift from conventional drainage systems toward blue-green solutions such as stormwater ponds. Research on blue-green stormwater solutions has until now mainly focused on water quantity and quality. LÄS MER

  4. 4. Characterisation of pollutants in stormwater treatment facilities

    Detta är en avhandling från Luleå : Luleå tekniska universitet

    Författare :Kristin Karlsson; Luleå tekniska universitet.; [2009]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; VA-teknik; Urban Water Engineering;

    Sammanfattning : The overall objective of this thesis is to increase the knowledge of both the pollutants within stormwater treatment facilities and the maintenance of these facilities. This objective has been achieved by studying water and sediment with respect to metal concentrations, fractionation, and toxicity from ponds, sedimentation tanks, and gully pots with different catchment characteristics as well as from the sediment removal process. LÄS MER

  5. 5. Water and sediment quality of urban water bodies in cold climates

    Detta är en avhandling från Luleå : Luleå tekniska universitet

    Författare :Ralf Rentz; Luleå tekniska universitet.; [2011]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Applied Geology; Tillämpad geologi;

    Sammanfattning : The aim of this study was to investigate and quantify pollution impact on urban waterbodies in cold climates and to find out which complex processes and influencing factors causetrapping or spread of pollutants. In order to do that water, sediment and porewater samplesfrom bays and stormwater ditches in Luleå, northern Sweden, and from an artificialstormwater pond in Sollentuna, south-central Sweden, were analysed for LOI, trace metalsand PAHs. LÄS MER