Sökning: "water conservation"

Visar resultat 1 - 5 av 88 avhandlingar innehållade orden water conservation.

  1. 1. Beneficial Use of Stormwater - Opportunities for urban renewal and water conservation

    Detta är en avhandling från Department of Water Resources Engineering, Lund Institute of Technology, Lund University

    Författare :Edgar Villarreal-Gonzalez; Lunds universitet.; Lund University.; [2005]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; soil mechanics; Väg- och vattenbyggnadsteknik; offshore technology; hydraulic engineering; Civil engineering; water conservation; rainwater collection; Best Management Practices; Urban stormwater; green-roofs; open drainage systems;

    Sammanfattning : Popular Abstract in Swedish Denna avhandling undersöker dagvatten som en resurs i svensk urban miljö. Fokus har varit öppna dagvattensystem för flödeskontroll och uppsamlingssystem för regnvatten. För att analysera realiserandet av öppna dagvattensystem, presenteras två fallstudier; Augustenborg i Malmö och Bäckaslöv våtmark i Växjö. LÄS MER

  2. 2. Urine separating wastewater systems experiences of design and nitrogen conservation

    Detta är en avhandling från Luleå : Luleå tekniska universitet

    Författare :Erica Johansson; [1999]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; VA-teknik; Urban Water Engineering;

    Sammanfattning : Urine separating (US) wastewater systems, where urine is collected and used as a fertiliser, may be a strategy to achieve a high degree of nutrient recycling from human waste to agriculture. The Swedish experiences of US systems show that the design of the toilets and the sewers are of great importance to achieve a working system. LÄS MER

  3. 3. Biogas generation in landfills : equilibria, rates & yields

    Detta är en avhandling från Department of Water Resources Engineering, Lund Institute of Technology, Lund University

    Författare :Mattias Åkesson; Lunds universitet.; Lund University.; [1997]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; geographical and geological engineering; Hydrogeology; model; limitation; volatile fatty acids; kinetics; biogas; thermodynamics; methane; Landfill; test cell; Hydrogeologi; teknisk geologi; teknisk geografi; Geophysics; physical oceanography; meteorology; Geofysik; fysisk oceanografi; meteorologi;

    Sammanfattning : Landfilling in "cells" has become more common in recent years. Different waste streams are guided to different cells, among which the biocell is a landfill designed for biogas production. In this thesis, the dependence of biogas generation on waste composition was investigated. LÄS MER

  4. 4. Electropermutation assisted by ion-exchange textile removal of nitrate from drinking water

    Detta är en avhandling från Stockholm : KTH

    Författare :Carl-Ola Danielsson; KTH.; [2006]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Ion-exchange textile; Ion-exchange membrane; Electropermutation; Electroextraction; Electrodialysis; Electrodeionisation; Modeling; Conducting spacer; Nitrate removal; Water treatment; Water dissociation; TECHNOLOGY Engineering mechanics Fluid mechanics; TEKNIKVETENSKAP Teknisk mekanik Strömningsmekanik;

    Sammanfattning : Increased levels of nitrate in ground water have made many wells unsuitable as sources for drinking water. In this thesis an ion-exchang eassisted electromembrane process, suitable for nitrate removal, is investigated both theoretically and experimentally. LÄS MER

  5. 5. Influence of fractures and air bubbles on the pressure distribution embankment dams

    Detta är en avhandling från Luleå : Luleå tekniska universitet

    Författare :Mats Billstein; [2000]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Vattenteknik; Water Resources Engineering;

    Sammanfattning : In some large embankment dams unexpected pore pressure distributions within the core have been observed. As an example, the piezometer pressures in WAC Bennett Dam, Canada, which rose for about four years after the reservoir was filled, were steady for two years and subsequently declined. LÄS MER