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Modelling and Simulation of a Groundwater aquifer in Vomb

Nordlund, Sanna LU (2015) KET920 20142
Chemical Engineering
Department of Chemistry
Abstract
In Sweden the groundwater cycle is by nature at steady state. When using groundwater as a freshwater resource it is common to artificially recharge the aquifer with approximately the same volume as is pumped up by the wells. The recharge to and the outtake from the aquifer effect the landscape of the saturated surface by generating higher peaks and lower valleys. In this thesis the Groundwater flow equation is studied from literature and from the study a model can be built which is simulated and compared with data given from the fields of Vomb-verket.
Popular Abstract
Underneath almost the entire surface of the earth there is water present. This water is called groundwater and holds about 30% of all the freshwater on earth. The groundwater is naturally stored in different reservoirs that are called aquifers. From this it is easy to understand that groundwater is an important source of freshwater for humans around the world. The usage of groundwater as drinking water goes far back in history from when the first wells were mined. Today groundwater is used as drinking water and as a source to water farming lands and gar-dens. The heavy use has led to a bigger outtake from the aquifer than the natural input and from this many of the aquifers are drained.
Vombverket, a waterworks outside of Lund that... (More)
Underneath almost the entire surface of the earth there is water present. This water is called groundwater and holds about 30% of all the freshwater on earth. The groundwater is naturally stored in different reservoirs that are called aquifers. From this it is easy to understand that groundwater is an important source of freshwater for humans around the world. The usage of groundwater as drinking water goes far back in history from when the first wells were mined. Today groundwater is used as drinking water and as a source to water farming lands and gar-dens. The heavy use has led to a bigger outtake from the aquifer than the natural input and from this many of the aquifers are drained.
Vombverket, a waterworks outside of Lund that provides the city of Malmö with drinking wa-ter, use groundwater as the source of freshwater. To make sure that draining of the aquifers does not occur the aquifers below the fields are recharged with lake water from Vombsjön. The principal of the artificial recharge is to imitate precipitation but heavily increased and only at a small area, in a pond. On the fields surrounding Vomb fifty ponds is mined. The amount of water that the aquifer is recharged with is the same amount that is pumped from the aquifer to the waterworks; this prevents the aquifer from draining.
Inside an aquifer, both naturally and artificially recharge movement occurs. This movement is caused by the look of the surface. The surface consists of peaks and valleys that arises from the slope of the bedrock and the input and output of water to and from the aquifer.
This master thesis investigates the movement of the water mass inside the aquifer and how pumping affects the groundwater surface. (Less)
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author
Nordlund, Sanna LU
supervisor
organization
course
KET920 20142
year
type
H2 - Master's Degree (Two Years)
subject
keywords
Groundwater, Groundwater flow equation, Aquifer, Artificial groundwater, Artificial groundwater recharge
language
English
id
4992076
date added to LUP
2015-01-30 17:11:32
date last changed
2015-01-30 17:11:32
@misc{4992076,
  abstract     = {In Sweden the groundwater cycle is by nature at steady state. When using groundwater as a freshwater resource it is common to artificially recharge the aquifer with approximately the same volume as is pumped up by the wells. The recharge to and the outtake from the aquifer effect the landscape of the saturated surface by generating higher peaks and lower valleys. In this thesis the Groundwater flow equation is studied from literature and from the study a model can be built which is simulated and compared with data given from the fields of Vomb-verket.},
  author       = {Nordlund, Sanna},
  keyword      = {Groundwater,Groundwater flow equation,Aquifer,Artificial groundwater,Artificial groundwater recharge},
  language     = {eng},
  note         = {Student Paper},
  title        = {Modelling and Simulation of a Groundwater aquifer in Vomb},
  year         = {2015},
}