Sökning: "Water quality guidelines"

Visar resultat 1 - 5 av 68 uppsatser innehållade orden Water quality guidelines.

  1. 1. Förutsättningar för hantering av länshållningsvatten från tunnelproduktion i byggandet av Ostlänken : Återanvändning av näringsämnen genom bevattning

    Uppsats för yrkesexamina på avancerad nivå,

    Författare :Elias Johansson; [2024]
    Nyckelord :Tunnel water; tunnel construction; nitrogen; fertilizer; irrigation; Länshållningsvatten; Tunnelvatten; Tunneldrivning; Kvävegödsel; Bevattning;

    Sammanfattning : When a tunnel is built in rock, a type of water is formed as a residual product. This tunnel wateris formed due to construction processes such as drilling requiring water and groundwater thatinfiltrates into the tunnel. The water can cause environmental damage if it is released directlyinto nature and needs to be treated. LÄS MER

  3. 2. Åtgärder mot förhöjda halter av per- och polyfluorerade alkylsubstanser (PFAS) i dagvatten : Styrande mål och riktvärden

    Uppsats för yrkesexamina på avancerad nivå,

    Författare :Felicia Hagberg; [2024]
    Nyckelord :PFAS; PFCA; PFSA; stormwater; guidelines; foam fractionation; activated carbon; anion exchangers; PFAS; PFCA; PFSA; dagvatten; riktvärden; åtgärder; skumfraktionering; aktivt kol; jonbytare;

    Sammanfattning : Stormwater is a significant transport medium for pollutants to recipients located near cities. Substances commonly found in stormwater include nutrients, metals, organic substances and particles. A group of pollutants detected in stormwater are per- och polyfluoroalkyl substances (PFAS). LÄS MER

  4. 3. Storm Water Management with BlueGreen Infrastructure in Urban Planning : A case-study in Krokom, Sweden

    Kandidat-uppsats, Mittuniversitetet/Institutionen för naturvetenskap, design och hållbar utveckling (2023-)

    Författare :Lena Suleiko Allansson; [2023]
    Nyckelord :Sustainable drainage system SuDS ; nature-based solutions; ecosystem services; urban water management; climate change adaption;

    Sammanfattning : As changing climate and growing urban populations present new challenges for managing both the quantity and the quality of storm waterin cities, nature-based solutions such as blue-green infrastructure arebecoming widely considered as an alternative to grey infrastructure. The benefits, above providing storm water management at a lower cost, are increased ecosystem services. LÄS MER

  5. 4. Major forest companies and owner associations interpretation of policies and certification programs regarding riparian buffer zones

    Master-uppsats, SLU/Dept. of Forest Ecology and Management

    Författare :Eric Lundström; [2023]
    Nyckelord :Buffer zone; Water quality; Buffer zone policy; Forestry; Policy interpretation;

    Sammanfattning : Human intervention in forests such as clearcut forestry have a negative impact on water quality and biodiversity. To maintain water quality and its biological values a commonly used method is to leave trees and shrubs closest to the water, in so called a buffer zone. LÄS MER

  7. 5. Treatment of Metals in Highway Runoff Water : Comparison of green infrastructures and filter material for stormwater treatment

    Master-uppsats, KTH/Hållbar utveckling, miljövetenskap och teknik

    Författare :Fanny von Matérn; [2023]
    Nyckelord :Road runoff; heavy metals; constructed wetland; stormwater pond; vegetated filterstrip; vegetated swale; sandfilter; reactive filter material; Vägdagvatten; tungmetaller; anlagd våtmark; dagvattendam; översilningsyta; svackdike; sandfilter; reaktiva filtermaterial;

    Sammanfattning : Highway runoff transport high concentrations of heavy metals. As climate change affect the environment with for example increased storm events, the treatment of road runoff becomes more important. LÄS MER