Purifier — Desalinate sea water to fresh water

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Seawater Desalination Systems Technical Specification Matrix

Engineering ParameterReverse Osmosis (SWRO) SystemsMulti-Effect Distillation (MED) / MSF
Primary Operating PrincipleMechanical Pressure / Membrane SeparationThermal Evaporation & Phase-Change Condensation
Typical Application ScaleMarine Vessels, Offshore Rigs, Municipal PlantsIndustrial Co-generation Plants, Refineries
Feedwater Salinity Tolerance ($\text{TDS}$)Up to $45,000\text{ mg/L}$ (Typical Seawater Baseline)Virtually unlimited ($\ge 50,000\text{ mg/L}$ Brine Highs)
Product Water Purity ($\text{TDS}$)$\le 200 \text{ to } 500\text{ ppm}$$\le 5 \text{ to } 10\text{ ppm}$ (Boiler Feed Quality)
Specific Energy Consumption ($\text{SEC}$)$3.0 \text{ to } 4.5\text{ kWh/m}^3$ (Electrical)$1.5 \text{ to } 2.5\text{ kWh/m}^3$ (Electrical) + Low-grade Thermal Heat
Core Structural ComponentsHigh-Pressure Pumps, Energy Recovery Devices (ERD), Semi-Permeable Membrane ElementsEvaporator Vessels, Heat Exchangers, Vacuum Ejectors, Condensers
Operating Pressure Range$5.5\text{ MPa}$ to $8.0\text{ MPa}$ ($55 \text{ to } 80\text{ bar}$)Negative Pressure / Vacuum environment ($\approx 5 \text{ to } 20\text{ kPa}$)
Pre-treatment DependencyHigh (Requires strict multi-media filtering, ultrafiltration, and anti-scalants)Low-to-Medium (Requires basic de-aeration, anti-foaming, and scale inhibition)
Recovery Ratio Framework ($Y$)$35\% \text{ to } 45\%$$20\% \text{ to } 40\%$ (Dependent on thermal stages/effects)
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