Essays about: "HEC-RAS and Water Quality"

Found 4 essays containing the words HEC-RAS and Water Quality.

1. 1. Modelling of water and material transport in River Storån to Lake Bolmen

   University essay from Lunds universitet/Avdelningen för Teknisk vattenresurslära

   Author : Imjal Sukupayo; [2021]
   Keywords : Brownification; Water Color; Dissolved Organic Matter; Discharge; hydraulic analysis; Tracer Analysis; Dispersion coefficient; Advection and Diffusion; Bolmen Lake; Storån River; Technology and Engineering; Earth and Environmental Sciences;

   Abstract : The change of color of water from yellow to brown termed as brownification process is mainly due to leaching of humus and iron concentrations. In recent years, this problem is increasing in lake Bolmen, a major source of drinking water in Skåne county, Sweden. READ MORE

3. 2. Optimizing the design of two-stage ditches to improve nutrient and sediment retention

   University essay from Uppsala universitet/Institutionen för geovetenskaper

   Author : Sofia Englund; [2020]
   Keywords : eutrophication; water quality; mitigation measure; two-stage ditch; retention time; water retention; nutrients; sediments; vegetation; terrace; HEC-RAS; Manning’s coefficient; water level; climate change; övergödning; vattenkvalitet; begränsande åtgärd; tvåstegsdike; retentionstid; vattenretention; näringsämnen; sediment; vegetation; terrass; HEC-RAS; Manning’s koefficient; vattennivå; klimatförändring;

   Abstract : Negative effects on water quality are created by eutrophication of the world’s water resources. Mitigation measures have been implemented, but poor improvements in water quality have been observed. Two-stage ditches have the possibility to increase nutrient and sediment retention to reduce eutrophication in receiving water bodies. READ MORE

4. 3. Physico-chemical evaluation of the water quality in Rocha River: A qualitative and comparative analysis including aspects of social and environmental factors

   University essay from Lunds universitet/Teknisk geologi

   Author : Stina Jacobson; Ida Sekizovic; [2019]
   Keywords : Cochabamba; Rocha River; water quality analysis; water pollution; wastewater; regulations; ICO-index; Hec-RAS; minor field study; Technology and Engineering; Earth and Environmental Sciences;

   Abstract : In this study, a physico-chemical analysis of the Rocha River was performed during the beginning of the rainy season 2018 in order to examine the current state of the water quality in the river at six different locations. The river, located in the Cochabamba department, Bolivia, was examined from upstream in Sacaba to downstream in Sipe Sipe. READ MORE

5. 4. Assessment of nutrient loading in lake Ringsjön from the catchment of Hörbyån Creek in Southern Sweden.

   University essay from KTH/Mark- och vattenteknik

   Author : Durgesh Kumar Singh; [2013]
   Keywords : Eutrophication; Nutrient loading; HEC-RAS and Water Quality;

   Abstract : Lake Ringsjön, located in south of Sweden, has been subject of eutrophication since 1950s and received several restoration efforts. Latest restoration effort, “Project Ringsjön”, was proposed in 2003 to improve lake condition against eutrophication by reducing nutrient concentration. READ MORE