Avancerad sökning

Visar resultat 1 - 5 av 78 avhandlingar som matchar ovanstående sökkriterier.

1. 1. Environmental impact of peat mining : Development of storm water treatment methods

   Författare :Bjørn Kløve; Avdelningen för Teknisk vattenresurslära; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; geographical and geological engineering; Hydrogeology; drainage artificial floodplaines; phosphorus; suspended solids; nitrogen; erosion; peat mining; peak runoff controll; sedimentation; water treatment; water resources; hydrology; hydraulics; Hydrogeologi; teknisk geologi; teknisk geografi; Geophysics; physical oceanography; meteorology; Geofysik; fysisk oceanografi; meteorologi;

   Sammanfattning : Drainage of peatlands increases the transport of suspended solids (SS) and the leaching of nutrients to downstream receiving waters. Increased settling of peat and eutrophication of lakes has been noted in many studies downstream from peat mines. LÄS MER

3. 2. Green-Blue Water Potential: : Building water resilience to attain the SDGs on food and poverty in Africa

   Författare :Maganizo Kruger Nyasulu; Ingo Fetzer; Stefan Liersch; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; agriculture; green-blue water resilience; sustainable development goals; climate change; land use change; vetenskap om hållbar utveckling; Sustainability Science;

   Sammanfattning : Attaining the Sustainable Development Goals (SDGs) of eradicating hunger and securing sustainable food for all by 2030, constitutes a major global challenge, particularly in sub-Saharan Africa (SSA). Here, malnourishment, poverty, and population growth are among the highest in the world, and some regions are constantly subject to extreme water variability and scarcity. LÄS MER

4. 3. Driving rain tightness, intrusion rates and phenomenology of leakages in defects of façades: A new calculation algorithm

   Författare :Lars Olsson; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; façade details; rain resistance; window-wall interface; EN 12865; protrusion; deficiency; catch area; water flow; obstacle; fenestration; dam; driving rain; water leakage; leakage flow; hole;

   Sammanfattning : This thesis presents the driving rain tightness of façades with façade details as well as the water leakage flows that can be expected. Furthermore, it describes the key mechanisms for water leakage in defects in the outermost layer of external walls. LÄS MER

5. 4. Data preparation, hydrodynamic and contaminant transport shallow-water simulations of Lake Victoria

   Författare :Seema Paul; Vladimir Cvetkovic; Jesper Oppelstrup; Roger Thunvik; Felix Mtalo; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Lake bathymetry model; Steady-state analysis; Numerical model validation; Lake water balance; Correlation and seasonal variations; Solute transport; Vattendjupskarta; Validering av numerisk modell; Vattenbalans; Korrelationer och säsongs-variation; Transport av lösliga ämnen; Mark- och vattenteknik; Land and Water Resources Engineering;

   Sammanfattning : This study explores shallow lake numerical hydrodynamic processes that support model development and validation, extreme events and effects of water circulation in Lake Victoria. Lake Victoria is the second largest freshwater lake in the world, and the largest in East Africa. LÄS MER

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

   Författare :Edgar Villarreal-Gonzalez; Avdelningen för Teknisk vattenresurslära; []
   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 : This thesis investigates the beneficial use of stormwater in Swedish urban environments. The focus has been on open stormwater systems for source control, as well as rainwater collection systems. To analyse the implementation of open stormwater systems, two case studies are presented: Augustenborg in Malmö and Bäckaslöv wetland in Växjö. LÄS MER