Essays about: "surface runoff"

Showing result 26 - 30 of 111 essays containing the words surface runoff.

  1. 26. Modeling the microbial fate and transport in rivers of South Africa

    University essay from Uppsala universitet/Luft-, vatten- och landskapslära

    Author : Stina Perman; [2021]
    Keywords : Water quality modelling; HYPE; waterborne pathogen transport; microorganism; E. coli; Vattenkvalitetsmodellering; HYPE; vattenburna patogener; mikroorganism; E. coli;

    Abstract : In recent years, surface water used for domestic, industrial, and irrigation purposes in South Africa has deteriorated due to inadequate wastewater treatment, urban and agricultural runoff, and rural settlements with deficient sanitation. Access to safe drinking water and sanitation is a basic human right, and if waterborne pathogens are present in the water environment, they compose a human health risk. READ MORE

  3. 27. Flood alleviation in Gothenburg South-Kungsladugård area with the help of rainwater harvesting/retention : Calculating roof catchment areas and applying rainwater harvesting systems

    University essay from Mittuniversitetet/Avdelningen för ekoteknik och hållbart byggande

    Author : Andres Salumets; [2021]
    Keywords : ;

    Abstract : Sweden like other countries on Earth is also affected by climate warming, including predicted higher levels of precipitation. Due to heavier rains, the occurrence of pluvial flooding may increase. READ MORE

  4. 28. Influence of land cover changes on organic carbon and organic nitrogen concentrations in Swedish rivers

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Julia Iwan; [2021]
    Keywords : Total Organic Carbon TOC ; Total Organic Nitrogen TON ; Land Cover Change; Sweden; WaterBase; Earth and Environmental Sciences;

    Abstract : There is increasing pressure on freshwater systems due to excessive nutrient loading by anthropogenic sources. In Sweden, freshwaters have become browner due to increasing exports of organic matter from soils into streams, rivers, and lakes. READ MORE

  5. 29. Phosphorus accumulation in a free water surface wetland discharging into the Baltic Sea

    University essay from SLU/Dept. of Aquatic Sciences and Assessment

    Author : Manuela Watschka; [2021]
    Keywords : free water surface wetland; phosphorus accumulation; internal loading; sediment accumulation;

    Abstract : Eutrophication has been an issue of the Baltic Sea for a long time, causing de-creased water clarity due to enhanced growth of algae and oxygen depletion dur-ing the decomposition of algae. The study investigated the free water surface wetland Vilhelmsberg that treats agricultural runoff before the water reaches the Baltic Sea. READ MORE

  6. 30. 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