The combined effect of temperature and pH on albite dissolution rate under far-from-equilibrium conditions

Gruber, Chen; Kutuzov, I.; Ganor, Jiwchar

doi:10.1016/j.gca.2016.04.046

Cited by 31 publications

(13 citation statements)

References 44 publications

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“…Influences from dissolution of additional silicate minerals such as albite and muscovite likely contributed to the observed differences between the two experiments. This rationale corresponds with the results of previous experiments which have demonstrated that the dissolution rate for both minerals increases with higher temperatures (Gruber et al, 2016;Lammers et al, 2017).…”

Section: Anaerobic Experimentssupporting

confidence: 92%

Using Heated Column Experiments to Investigate the Effects of In-Situ Thermal Recovery Operations on Groundwater Geochemistry in Cold Lake, Alberta

Craig¹

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Groundwater monitoring studies of the Cold Lake-Beaver River (CLBR) basin in Alberta, Canada have linked increases in arsenic concentration to subsurface heat release caused by insitu thermal recovery operations. In-situ thermal recovery is an extraction technique that is used throughout the CLBR and Athabasca Basins to mine viscous unconventional oil at depths below 80 m by injecting steam through thermal wells at 200°C to 300°C into a target reservoir. As the First, I would like to say thank you to my supervisor and mentor Dr. Richard Amos for his genuine support, guidance and encouragement throughout the development of this research project. I am grateful for the time and effort that Richard always made to meet and discuss a wide array of aspects related to the project and share his insights and knowledge. This project was a true collaboration between both of us and I feel privileged to have had such an opportunity.

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Section: Anaerobic Experimentssupporting

confidence: 92%

Using Heated Column Experiments to Investigate the Effects of In-Situ Thermal Recovery Operations on Groundwater Geochemistry in Cold Lake, Alberta

Craig¹

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“…A wealth of information is available on the molecular mechanisms, kinetics, and pH-dependencies of dissolution reactions of carbonate minerals [119][120][121], Fe-(oxy)hydroxides [122,123], and silicate minerals commonly encountered in waste rock [124][125][126]. The kinetics of carbonate dissolution are typically rapid compared to sulfide oxidation (i.e., far from equilibrium [127]), whereas the dissolution of silicates is orders-of-magnitude slower [2].…”

Section: Acid-buffering Reactionsmentioning

confidence: 99%

Mine Waste Rock: Insights for Sustainable Hydrogeochemical Management

et al. 2020

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Mismanagement of mine waste rock can mobilize acidity, metal (loid)s, and other contaminants, and thereby negatively affect downstream environments. Hence, strategic long-term planning is required to prevent and mitigate deleterious environmental impacts. Technical frameworks to support waste-rock management have existed for decades and typically combine static and kinetic testing, field-scale experiments, and sometimes reactive-transport models. Yet, the design and implementation of robust long-term solutions remains challenging to date, due to site-specificity in the generated waste rock and local weathering conditions, physicochemical heterogeneity in large-scale systems, and the intricate coupling between chemical kinetics and mass- and heat-transfer processes. This work reviews recent advances in our understanding of the hydrogeochemical behavior of mine waste rock, including improved laboratory testing procedures, innovative analytical techniques, multi-scale field investigations, and reactive-transport modeling. Remaining knowledge-gaps pertaining to the processes involved in mine waste weathering and their parameterization are identified. Practical and sustainable waste-rock management decisions can to a large extent be informed by evidence-based simplification of complex waste-rock systems and through targeted quantification of a limited number of physicochemical parameters. Future research on the key (bio)geochemical processes and transport dynamics in waste-rock piles is essential to further optimize management and minimize potential negative environmental impacts.

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“…In general, the reaction rates of mineral is increasing with the elevating temperature. While, the mineral solubility will be either increased or decreased when temperature is increasing, which is depending on the thermodynamic properties of the mineral (Griffioen and Appelo, 1993;Gruber et al, 2016). For instance, solubility of silicates increases with the increasing temperature.…”

Section: Introductionmentioning

confidence: 99%

Effect of High Temperature and High Pressure of Water on Micro-Characteristic and Splitting Tensile Strength of Gritstone

Zhao

Zhou

et al. 2019

Front. Earth Sci.

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To investigate the role of gritstone after hydro-thermal treatment on the mechanical properties and deformation failure behavior, the Brazilian test are carried out on gritstone specimens. Using load-displacement curves, the peak load and peak displacement of the gritstone specimens are analyzed in detail. The mechanical parameters are closely related to the high temperature, high pressure of water and the cooling down methods. The static splitting tensile strength (STS S ) of specimens are decreasing with the increase of water pressure. In the cooling down group, the STS S and peak displacement of specimen WP1 are the lowest one. While, the STS S of specimen W1 is the biggest one. The differences in mechanical properties of the gritstone specimen are mainly caused by the ablation effect in the microscale under different HTHP and cooling down conditions. The surface deformation characteristics of the tested gritstone specimens are investigated by analyzing the full strain field and the local strain concentration. In the gritstone specimen, the major principal strain is first concentrated in the bottom or the top of gritstone specimens where the crack is initiated. The small jump of local strain means crack initiation and propagation, while the fracture of strain gauge leads to strain mutation. The SEM results are discussed to describe the fracture mechanism of brittle gritstone after HTHP treatment.

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The combined effect of temperature and pH on albite dissolution rate under far-from-equilibrium conditions

Cited by 31 publications

References 44 publications

Using Heated Column Experiments to Investigate the Effects of In-Situ Thermal Recovery Operations on Groundwater Geochemistry in Cold Lake, Alberta

Using Heated Column Experiments to Investigate the Effects of In-Situ Thermal Recovery Operations on Groundwater Geochemistry in Cold Lake, Alberta

Mine Waste Rock: Insights for Sustainable Hydrogeochemical Management

Effect of High Temperature and High Pressure of Water on Micro-Characteristic and Splitting Tensile Strength of Gritstone

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