Sökning: "groundwater chemistry"
Visar resultat 21 - 25 av 54 avhandlingar innehållade orden groundwater chemistry.
21. Geochemical modelling of groundwater chemistry in the vicinity of a repository for spent nuclear fuel
Sammanfattning : .... LÄS MER
22. Modelling long-term redox processes and oxygen scavenging in fractured crystalline rocks
Sammanfattning : Under de senaste decennierna har i många länder, inkluderat Sverige, långt gångna planer utvecklats för ett djupförvar av högaktivt kärnavfall. Som en del i det svenska förvarskonceptet skall avfallet inneslutas i kopparkapslar som omslutes av återfyllnadsmaterial med mycket låg genomsläpplighet av vatten. LÄS MER
23. Groundwater chemistry affected by underground construction activities
Sammanfattning : A leaking underground construction increases the groundwater recharge and decreases the residence time of the groundwater. If groundwater of a certain chemical composition dominated the location inside the bedrock of a planned tunnel prior to the construction phase, this water is likely to be replaced by water of a different chemical type because of leakage of water into the tunnel during the construction and operational phases. LÄS MER
24. Phytoremediation of soil contaminated with per- and polyfluoroalkyl substances (PFAS)
Sammanfattning : Per- and polyfluoroalkyl substances (PFAS) are anthropogenic compounds recognised for their persistence, mobility and potential toxicity. This thesis examines the efficacy of phytoremediation as a potential technique for managing PFAS-contaminated soil and groundwater. LÄS MER
25. Microbial biofilm communities associated with degradation of sprayed concrete in subsea tunnels
Sammanfattning : Deterioration of concrete leads to reduced structural strength implying high societal challenge with huge economic impact. In the Oslofjord subsea tunnel, complex microbial biofilm activity together with abiotic attack from saline groundwater are responsible for concrete matrix degradation and steel fiber corrosion. LÄS MER