Characterisation and quantification of physical and geochemical processes during the artificial recharge of a heterogeneous, low carbonate aquifer

Simone Agnes Seibert

Research output: ThesisDoctoral Thesis

Abstract

This study provides a comprehensive analysis of the geochemical and Isotopic changes during managed aquifer recharge within a physically and geochemically heterogeneous aquifer. Numerical modelling was employed to quantify the coupled solute/heat transport and geochemical processes and to elucidate the controls on the spatial land temporal evolution of solutes and stable isotopes. Pyrite oxidation and associated pH buffering were Identified as the most Important geochemical processes to drive the water quality changes that occurred during the subsurface passage and storage of the injected water. Buffering reactions were shown to vary with depth as a function of the depositional environment.
LanguageEnglish
QualificationDoctor of Philosophy
Awarding Institution
  • The University of Western Australia
Award date7 Feb 2017
StateUnpublished - 2017

Fingerprint

artificial recharge
buffering
solute
aquifer
carbonate
temporal evolution
depositional environment
recharge
pyrite
stable isotope
water quality
oxidation
modeling
water
land
analysis

Cite this

@phdthesis{9e81534f52274051b3765b9d9552eca3,
title = "Characterisation and quantification of physical and geochemical processes during the artificial recharge of a heterogeneous, low carbonate aquifer",
abstract = "This study provides a comprehensive analysis of the geochemical and Isotopic changes during managed aquifer recharge within a physically and geochemically heterogeneous aquifer. Numerical modelling was employed to quantify the coupled solute/heat transport and geochemical processes and to elucidate the controls on the spatial land temporal evolution of solutes and stable isotopes. Pyrite oxidation and associated pH buffering were Identified as the most Important geochemical processes to drive the water quality changes that occurred during the subsurface passage and storage of the injected water. Buffering reactions were shown to vary with depth as a function of the depositional environment.",
keywords = "Ground water, Low ionic strength, Managed aquifer recharge, Heterogeneous, Numerical modelling, Heat transport, Stable sulphur isotope, Pyrite oxidation",
author = "Seibert, {Simone Agnes}",
year = "2017",
language = "English",
school = "The University of Western Australia",

}

TY - THES

T1 - Characterisation and quantification of physical and geochemical processes during the artificial recharge of a heterogeneous, low carbonate aquifer

AU - Seibert,Simone Agnes

PY - 2017

Y1 - 2017

N2 - This study provides a comprehensive analysis of the geochemical and Isotopic changes during managed aquifer recharge within a physically and geochemically heterogeneous aquifer. Numerical modelling was employed to quantify the coupled solute/heat transport and geochemical processes and to elucidate the controls on the spatial land temporal evolution of solutes and stable isotopes. Pyrite oxidation and associated pH buffering were Identified as the most Important geochemical processes to drive the water quality changes that occurred during the subsurface passage and storage of the injected water. Buffering reactions were shown to vary with depth as a function of the depositional environment.

AB - This study provides a comprehensive analysis of the geochemical and Isotopic changes during managed aquifer recharge within a physically and geochemically heterogeneous aquifer. Numerical modelling was employed to quantify the coupled solute/heat transport and geochemical processes and to elucidate the controls on the spatial land temporal evolution of solutes and stable isotopes. Pyrite oxidation and associated pH buffering were Identified as the most Important geochemical processes to drive the water quality changes that occurred during the subsurface passage and storage of the injected water. Buffering reactions were shown to vary with depth as a function of the depositional environment.

KW - Ground water

KW - Low ionic strength

KW - Managed aquifer recharge

KW - Heterogeneous

KW - Numerical modelling

KW - Heat transport

KW - Stable sulphur isotope

KW - Pyrite oxidation

M3 - Doctoral Thesis

ER -