#phreeqc — Public Fediverse posts

A methodological audit of regional hydrogeochemical literature reveals a systemic gap. Legacy environmental assessments for the Kryvyi Rih Iron Ore Basin rely on frameworks designed for fresh water, which fail when applied to highly mineralized mine waters. Standard equilibrium algorithms are inadequate for environments with extreme ionic strength.

This limitation extends to mass transport: conventional modeling overlooks density-driven convection and gravitational settling of heavy brines, leading to inaccurate spatial migration models.

Overcoming this inertia requires a return to the fundamental laws of chemical thermodynamics and multiphase flow physics, aligning predictive models with actual environmental constraints.

👇 The link to download the updated monograph (v0.80, Open Access, in Ukrainian):
https://doi.org/10.5281/zenodo.20709306

#KryvyiRihBasin #IronOre #MineWater #Hydrogeology #PHREEQC #SvystunovaGully #Geochemistry #Contamination #RStats #Groundwater #DataScience

A methodological audit of regional hydrogeochemical literature reveals a systemic gap. Legacy environmental assessments for the Kryvyi Rih Iron Ore Basin rely on frameworks designed for fresh water, which fail when applied to highly mineralized mine waters. Standard equilibrium algorithms are inadequate for environments with extreme ionic strength.

This limitation extends to mass transport: conventional modeling overlooks density-driven convection and gravitational settling of heavy brines, leading to inaccurate spatial migration models.

Overcoming this inertia requires a return to the fundamental laws of chemical thermodynamics and multiphase flow physics, aligning predictive models with actual environmental constraints.

👇 The link to download the updated monograph (v0.80, Open Access, in Ukrainian):
https://doi.org/10.5281/zenodo.20709306

#KryvyiRihBasin #IronOre #MineWater #Hydrogeology #PHREEQC #SvystunovaGully #Geochemistry #Contamination #RStats #Groundwater #DataScience

🔥 Dear colleagues! I present to you the new version (0.80) of my monograph dedicated to the hydrogeochemical (thermodynamic) modeling of the contamination plume around the storage pond in the Svystunova Gully (in Ukrainian).
I have significantly expanded the theoretical and practical sections, adding a description of the hydrodynamic properties and behavior of highly mineralized plumes.

The comprehensive concept of the gradual advancement of the contamination plume and the resulting technogenic karst is now revealed.

❗ In the section 1.2 I critically analyze the methodologies and conclusions of previous studies on the technogenic water bodies of the Kryvbas and the propagation processes of contamination plumes from these sites.

The link to the new version of the monograph:
https://doi.org/10.5281/zenodo.20709306

#phreeqc #SvystunovaGully #geochemistry #minewater #contamination #RStats #groundwater #DataScience #IronOreMining #GIS #EnvironmentalDataScience

🔥 Dear colleagues! I present to you the new version (0.80) of my monograph dedicated to the hydrogeochemical (thermodynamic) modeling of the contamination plume around the storage pond in the Svystunova Gully (in Ukrainian).
I have significantly expanded the theoretical and practical sections, adding a description of the hydrodynamic properties and behavior of highly mineralized plumes.

The comprehensive concept of the gradual advancement of the contamination plume and the resulting technogenic karst is now revealed.

❗ In the section 1.2 I critically analyze the methodologies and conclusions of previous studies on the technogenic water bodies of the Kryvbas and the propagation processes of contamination plumes from these sites.

The link to the new version of the monograph:
https://doi.org/10.5281/zenodo.20709306

#phreeqc #SvystunovaGully #geochemistry #minewater #contamination #RStats #groundwater #DataScience #IronOreMining #GIS #EnvironmentalDataScience

Updating the graphical materials for the new edition of the monograph on the thermodynamic modeling of processes in technogenic waters. The figures present pe-pH stability (Pourbaix) diagrams for the vanadium and zinc systems, calculated using the PHREEQC core engine. Unlike simplified "water–element" systems, these models compute the thermodynamic equilibrium of the comprehensive solution matrix, accounting for actual macrocomponent concentrations, ionic strength, and ligand competition at every point of the computational space. Utilizing multicomponent calculations allows for the analysis of physicochemical processes in real water samples, rather than simply reproducing idealized "textbook diagrams".

#Geochemistry #PHREEQC #RStats #MineWater #EnvironmentalScience #DataScience #SvystunovaGully #RedModRphree #FOSS

Updating the graphical materials for the new edition of the monograph on the thermodynamic modeling of processes in technogenic waters. The figures present pe-pH stability (Pourbaix) diagrams for the vanadium and zinc systems, calculated using the PHREEQC core engine. Unlike simplified "water–element" systems, these models compute the thermodynamic equilibrium of the comprehensive solution matrix, accounting for actual macrocomponent concentrations, ionic strength, and ligand competition at every point of the computational space. Utilizing multicomponent calculations allows for the analysis of physicochemical processes in real water samples, rather than simply reproducing idealized "textbook diagrams".

#Geochemistry #PHREEQC #RStats #MineWater #EnvironmentalScience #DataScience #SvystunovaGully #RedModRphree #FOSS

Thousands of studies describe Rayleigh–Taylor instability, and most hydrogeological models acknowledge its importance in contaminant transport.

However, in studies of the Svystunova gully mine-water storage pond, I have not seen density explicitly accounted for — despite highly mineralized waters where this factor can fundamentally change plume behaviour.
By calculating solution density within the contamination halo, I demonstrated a real risk of gravity-driven sinking of the contamination plume to the base of the aquifer. This finding adds a critical dimension to impact assessment and is now documented as a standalone section in my ongoing report.

If you work with mine water, aquifers contamination, or long-term contamination modelling, this is a parameter worth revisiting.

#Hydrogeochemistry #Groundwater #MineWater #PHREEQC #RStats #QGIS #EnvironmentalRisk #Contamination #RiskAnalysis #SvystunovaGully

Thousands of studies describe Rayleigh–Taylor instability, and most hydrogeological models acknowledge its importance in contaminant transport.

However, in studies of the Svystunova gully mine-water storage pond, I have not seen density explicitly accounted for — despite highly mineralized waters where this factor can fundamentally change plume behaviour.
By calculating solution density within the contamination halo, I demonstrated a real risk of gravity-driven sinking of the contamination plume to the base of the aquifer. This finding adds a critical dimension to impact assessment and is now documented as a standalone section in my ongoing report.

If you work with mine water, aquifers contamination, or long-term contamination modelling, this is a parameter worth revisiting.

#Hydrogeochemistry #Groundwater #MineWater #PHREEQC #RStats #QGIS #EnvironmentalRisk #Contamination #RiskAnalysis #SvystunovaGully

Thousands of studies describe Rayleigh–Taylor instability, and most hydrogeological models acknowledge its importance in contaminant transport.

However, in studies of the Svystunova gully mine-water storage pond, I have not seen density explicitly accounted for — despite highly mineralized waters where this factor can fundamentally change plume behaviour.
By calculating solution density within the contamination halo, I demonstrated a real risk of gravity-driven sinking of the contamination plume to the base of the aquifer. This finding adds a critical dimension to impact assessment and is now documented as a standalone section in my ongoing report.

If you work with mine water, aquifers contamination, or long-term contamination modelling, this is a parameter worth revisiting.

#Hydrogeochemistry #Groundwater #MineWater #PHREEQC #RStats #QGIS #EnvironmentalRisk #Contamination #RiskAnalysis #SvystunovaGully

Behind the scenes of “beautiful scientific graphics”

If you think that clean, elegant visuals in scientific reports are produced in a couple of clicks — I’m here to disappoint you. 🙂

Here’s one of many failed attempts to visualize results based on thermodynamic modeling of geochemical processes.

Turning raw multidimensional data into something that a human reader can intuitively grasp is a separate challenge — with dozens of input parameters and only a few truly useful outcomes.

Good science is not only about computation, but also about communication.

#Geochemistry #DataViz #Rstats #Clustering #EnvironmentalModelling #ScienceCommunication #PHREEQC #WaterPollution #SvystunovaGully #Contamimation #Groundwater #Infographics #PCA #Thermodynamics

💧 Exploring how contaminated mine waters behave in a carbonate aquifer — through the lens of metasomatic zoning and thermodynamic #geochemical modeling.

Using #PHREEQC simulations, data analysis in #RStats, and geospatial visualization in #QGIS, I’m studying how mine drainage transforms groundwater systems and mineral equilibria over time.

📘 The draft version (v0.75) of my monograph on this topic has already been downloaded 550+ times on #Zenodo — showing how relevant this issue has become for both science and environmental policy.

It’s independent research that links theory, modeling, and practical hydrogeochemical assessment — focused on the long-term impact of mine waters in the Kryvyi Rih region.

🔗 Read or download:
https://zenodo.org/records/16741148

#Geochemistry #Groundwater #MineWater #EnvironmentalGeochemistry #Hydrogeology #WaterPollution #Metasomatism #OpenScience #IndependentResearch #EnvironmentalDataScience #Aquifer #HeavyMetals #Sustainability #SvystunovaGully