Author: GAEA Technologies
Posts
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MIGRATEv10 Example 13: Termination of Primary Leachate Collection System
Introduction MIGRATEv10 Example 13 explores a critical long-term scenario in landfill performance: 👉 What happens when the primary leachate collection system (PLCS) stops operating? This example builds directly on Example 1 by introducing time-dependent changes in hydraulic conditions following landfill closure. It highlights how reduced system performance can significantly impact leakage rates and contaminant migration.…
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POLLUTEv10 Example 14: Modeling a Landfill with Primary and Secondary Leachate Collection Using Passive Sink
Introduction POLLUTEv10 Example 14 demonstrates an advanced application of contaminant transport modeling using the Passive Sink special feature. This scenario simulates a landfill equipped with both primary and secondary leachate collection systems, incorporating layered hydrogeologic conditions and a finite contaminant source. The example is particularly useful for environmental engineers and hydrogeologists seeking to understand how…
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Digitizing Historical Geophysical Well Logs: Methods, Tools, and Best Practices
Introduction Across the energy, environmental, mining, and geothermal sectors, historical geophysical well logs represent one of the most valuable yet underutilized subsurface datasets. For decades, oil and gas companies, government geological surveys, environmental consultancies, and exploration firms generated millions of well logs documenting the physical properties of the subsurface. However, a large portion of these…
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POLLUTEv10 Example 15: Modeling Leachate Collection System Failure Using Variable Properties and Passive Sink
Introduction POLLUTEv10 Example 15 builds directly on Example 14 by introducing a critical real-world scenario: failure of the primary leachate collection system (LCS). This example demonstrates how to simulate time-dependent changes in hydraulic conditions using the Variable Properties feature in combination with the Passive Sink option. The result is a more realistic representation of landfill…
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POLLUTEv10 Example 16: Monte Carlo Simulation of Leachate Collection System Failure Timing
Introduction POLLUTEv10 Example 16 introduces probabilistic modeling into landfill contaminant transport analysis using Monte Carlo simulation. Building on Example 15, this case evaluates how uncertainty in the timing of primary leachate collection system (LCS) failure affects contaminant migration. Rather than assuming a single failure time, this example models a range of possible failure scenarios, providing…
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POLLUTEv10 Example 17: Modeling a Landfill with Composite Liners and Dual Leachate Collection Systems
Introduction POLLUTEv10 Example 17 demonstrates how to model a landfill incorporating a composite primary liner, primary and secondary leachate collection systems, and a compacted clay secondary liner. This example introduces a more engineered and realistic landfill design, reflecting modern containment practices. A key feature is the use of the Giroud et al. (1992) leakage method,…
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POLLUTEv10 Example 18: Modeling Phase Change in a Secondary Leachate Collection System
Introduction POLLUTEv10 Example 18 demonstrates the application of the Phase Change special feature to simulate contaminant transport within a landfill system that includes a secondary leachate collection system (SLCS). This example is particularly valuable for environmental engineers and hydrogeologists interested in modeling multi-phase contaminant behavior across unsaturated and saturated zones. The scenario focuses on the…
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POLLUTEv10 Example 19: Multiphase Diffusion of Toluene Through a Geomembrane System
Introduction POLLUTEv10 Example 19 models a multiphase diffusion experiment originally conducted by Buss et al. (1995). This example is particularly useful for understanding how volatile organic compounds (VOCs), such as toluene, migrate through engineered barrier systems that include geomembranes, airspaces, and aqueous reservoirs. The simulation demonstrates how POLLUTEv10 can accurately reproduce laboratory-scale results by incorporating…
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POLLUTEv10 Example 20: Sensitivity Analysis of Primary Leachate Collection System Failure
Introduction POLLUTEv10 Example 20 introduces Sensitivity Analysis as a powerful tool to evaluate how uncertainty in system performance impacts contaminant transport. In this case, the focus is on the service life of a Primary Leachate Collection System (PLCS) and how variations in its failure timing influence contaminant migration. Building on the framework established in Examples…
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Why We Built GaeaSynergy: Solving the Fragmented Data Problem
Introduction In the world of geotechnical engineering, environmental consulting, and geological investigation, data is everything. Every borehole log, lab result, cross-section, and field observation contributes to a deeper understanding of the subsurface. Yet for decades, one persistent challenge has limited the full potential of this data: Fragmentation. Data scattered across spreadsheets, disconnected software tools, legacy…