🧪 Differential material balance of cascade EFC: from flowsheet to FEED 💻 Thermodynamic modeling of eutectic freeze crystallization for hypersaline mine waters (Kryvyi Rih Iron Ore Basin, n = 40 samples, PHREEQC + FREZCHEM): 🔹 Mirabilite (Na₂SO₄·10H₂O): Depletes before −20.0 °C as free SO₄²⁻ is exhausted; residual trace sulfates are bound by gypsum. 🔹 Purity buffer (−20.0 … −22.5 °C): Zero salt yield almoust (0.00 g). Pure ice generation prevents cross-contamination during crystallization swings. 🔹 Hydrohalite (NaCl·2H₂O): Surges below −22.5 °C with peak yields of 15–17 g/step across the entire ensemble. 🔹 Trace minerals: Sub-gram gypsum & ikaite (CaCO₃·6H₂O) stay ≤0.16 g/step. 🔹 Refrigeration design: Differential ice profile yields exact thermal loads for crystallizer sizing. ☝️ Transitions EFC scoping directly into Front-End Engineering Design (FEED). #Geochemistry #WaterTreatment #Mining #EFC #PHREEQC #ProcessEngineering #FREZCHEM #IndustrialWastewater #KryvyiRih #DataScience #SvystunovaGully