Sökning: "VA-teknik"

Visar resultat 36 - 40 av 88 avhandlingar innehållade ordet VA-teknik.

  1. 36. Aspects of drinking water supply in areas of humic water

    Författare :Talis Juhna; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; VA-teknik; Urban Water Engineering;

    Sammanfattning : The thesis investigated several aspects that are important for drinking water supply from waters with high amounts of humic substance (humic water). The results showed that the composition of humic substances is important in their sorption to aquifer material during surface water artificial recharge through infiltration basins to groundwater. LÄS MER

  3. 37. Sorption of humic substances and microbial activity in the course of artificial recharge of groundwater

    Författare :Talis Juhna; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; VA-teknik; Urban Water Engineering;

    Sammanfattning : Sorption of humic subtances and metal-humate complexes on aquifer material taken from basins used for artificial recharge of groundwater was studied in batch scale experiments. Distribution of bacteria attached to the material from uppermost layer and from the horizons below the infiltration basin were measured in the field studies. LÄS MER

  4. 38. Characterisation of pollutants in stormwater treatment facilities

    Författare :Kristin Karlsson; Davis Butler; Luleå tekniska universitet; []
    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. 39. Pathways of pollutants in stormwater systems

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

    Sammanfattning : The choice of stormwater procedures will affect the pathways of the water and its pollutants, since different stormwater facilities reduce different types of substances and fractions to varying degrees. Traditional stormwater handling has mainly been emphasised to transport the water from the cities. LÄS MER

  7. 40. Urban Stormwater Treatment with Ultrafiltration and Pulsatile Fluid Flow

    Författare :Saida Kaykhaii; Inga Herrmann; Annelie Hedström; Ekaterina Sokolova; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; VA-teknik; Urban Water Engineering; Centrumbildning - Centrum för dagvattenhantering DRIZZLE ; Centre - Centre for Stormwater Management DRIZZLE ;

    Sammanfattning : Stormwater can be a potential water resource if it is treated, and the quality meets the demand, depending on the application. Various nutrients and pollutants, for example microorganisms can enter stormwater and can vary depending on time and place, as the contaminants come from different sources. LÄS MER