Essays about: "sötvatten"

Showing result 1 - 5 of 43 essays containing the word sötvatten.

  1. 1. Optimal Discharge from a Hydropower Plant for Fish Reproduction: An Aquatic Habitat Model

    University essay from Lunds universitet/Avdelningen för Teknisk vattenresurslära

    Author : Hugo Lindbäck; [2023]
    Keywords : Weighted Usable Area WUA ; minimitappning; HEC-RAS; salmo; Helge å; den nationella planen för omprövning av vattenkraft NAP ; Technology and Engineering;

    Abstract : Hydropower is the dominant source of electricity in Sweden, constituting 45% of the national supply. While pivotal for decarbonization and climate goals, its environmental impact on freshwater biodiversity is concerning. READ MORE

  3. 2. Microplastics in food webs- occurrence in Lake Vänern brown trout (Salmo trutta) and its main prey

    University essay from Karlstads universitet/Fakulteten för hälsa, natur- och teknikvetenskap (from 2013)

    Author : Hanna Nordström; [2023]
    Keywords : microplastic; freshwater; fish; brown trout; mikroplast; sötvatten; fisk; öring;

    Abstract : Over the past decade, research on microplastic pollution has gained significant attention. Research regarding microplastic occurrence in freshwater fish, however is still scarce. While possible pathways have been investigated, passive transfer via ingestion of prey, and possible bioaccumulation in different organs remains relatively unstudied. READ MORE

  4. 3. Life Cycle Assessment of a small scale, solar driven HVR water purification system

    University essay from KTH/Skolan för industriell teknik och management (ITM)

    Author : Sharang Kolathur; [2022]
    Keywords : life cycle assessment; air gap membrane distillation; solar energy; levelized cost; grid operated system; livscykelanalys; luftgapmembrandestillation; solenergi; utjämnade kostnader; nätdrivet system;

    Abstract : Water purification systems have made access to drinking water easier by treating water sources which previously could not be used for drinking. Such systems however require energy and materials to build and operate which means they have environmental impacts. READ MORE

  5. 4. Water Risk Assessment of Agricultural Raw Materials in a Global Supply Chain : A Case Study of IKEA

    University essay from KTH/Hållbar utveckling, miljövetenskap och teknik

    Author : Victoria Berggren; [2022]
    Keywords : Water Risk Assessment; Freshwater; Water Depletion; Water Availability; Agricultural Raw Materials; Soy; Palm Oil; Agricultural Management Practices; and Material Sourcing; Riskbedömning för vatten; sötvatten; vattenbrist; vattentillgång; jordbruksråmaterial; soja; palmolja; jordbruksförvaltningsmetoder och materialförsörjning;

    Abstract : Current mass consumption and production patterns have led to an unsustainable use of natural resources, including freshwater, which is one the most crucial natural resources for people and the planet. Agricultural production systems are alone responsible for 72 percent of all global water withdrawals. READ MORE

  6. 5. Methane and Carbon Dioxide Emissions From Three Smallscale Hydropower Stations in South of Sweden

    University essay from Linköpings universitet/Tema Miljöförändring

    Author : Edevardt Johan Danielsen; Alexandra Jonsson Valderrama; [2022]
    Keywords : Hydropower; Reservoir; Freshwater; automated Flux chambers; Emissions; Ebullition; Diffusion; Greenhouse gases; GHGs; Methane; CH4; Carbon dioxide; CO2; Dissolved oxygen; DO; Variability; Spatial; Temporal; Dissolved inorganic carbon.; Vattenkraft; Reservoar; Sötvatten; automatiserade Fluxkammare; Utsläpp; Ebullition; Diffusion; Växthusgaser; GHHs; Metan; CH4; Koldioxid; CO2; Löst syre; DO; Variabilitet; Rumslig; Temporal; Löst oorganiskt kol.;

    Abstract : Over the past decades, evidence show that the anthropogenetic greenhouse gases (GHG) emissions of carbon dioxide (CO₂) and methane (CH₄) are the main drivers behind global warming and are becoming stronger. Globally, hydropower is among the main sources of renewable energy and the popular notion that hydropower electricity is carbon neutral has been under debate as evidence from measurements in different regions of the globe show significant and highly variable carbon emissions from hydropower reservoirs. READ MORE