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Conference paper

Ny metode til at vurdere den udnyttelige grundvandsressource

By Rygaard, Martin1,2

From

Urban Water Systems, Department of Environmental Engineering, Technical University of Denmark1

Department of Environmental Engineering, Technical University of Denmark2

At sikre fremtidig vandindvinding kræver en god forståelse af påvirkninger på både akviferer og vandløb. Bæredygtighedsindikatorer for vandindvinding baserer sig ofte på antagelser om ”naturens nødvendige vandforbrug”, også kaldet ”Environmental GroundWater Requirements (EGWR)”. Vi foreslår en udvidet fortolkning af EGWR, hvor der ud over påvirkninger af overfladevand (EGWRflow) også beregnes en EGWRwq, der repræsenterer påvirkning af grundvandskvaliteten.

Beregningen af EGWRwq baseres på antagelser af, hvordan afsænkninger påvirker grundvandskvaliteten og dermed den udnyttelige grundvandsressource. Vi fandt, at hvis der tillades en generel afsænkning på 3 m, var der for den aktuelle indvinding mulighed for at indvinde yderligere 38 millioner m3 /år på Sjælland.

Frigørelsen af denne yderligere ressource ville dog kræve en omfordeling af indvindingen på tværs af hele Sjælland.

Language: Danish
Year: 2019
Proceedings: Dansk Vand Konference 2019
Types: Conference paper
ORCIDs: Rygaard, Martin

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