Project Background
In regions facing freshwater scarcity, seawater desalination has emerged as a vital solution to meet water demands. This case study examines a hypothetical seawater desalination project designed to supply potable water to a coastal city with a population of 500,000.
Project Requirements
- Capacity: The facility must produce 100,000 cubic meters of potable water per day.
- Water Quality: The desalinated water should meet international drinking water standards.
- Energy Efficiency: The project should minimize energy consumption to reduce operational costs.
- Environmental Impact: The facility must manage brine disposal responsibly to prevent marine pollution.
Technical Details
Project Parameters
| Parameter | Specification |
|---|---|
| Source Water | Seawater with 35,000 mg/L TDS |
| Production Capacity | 100,000 m³/day |
| Recovery Rate | 45% |
| Energy Consumption | 3.5 kWh/m³ |
| Brine Disposal | Deep-well injection |
Equipment Specifications
| Equipment | Specification |
|---|---|
| Pre-Treatment | Dual-media filtration |
| Reverse Osmosis Units | 10 units, 10,000 m³/day each |
| Energy Recovery Device | Pressure exchanger |
| Post-Treatment | pH adjustment and remineralization |
| Brine Disposal System | Deep-well injection system |
Project Outcomes
Upon completion, the desalination plant successfully met the city’s water demand, providing high-quality potable water. The energy-efficient design resulted in operational costs 15% lower than initial projections. The brine disposal system ensured environmental compliance, with no adverse effects on marine ecosystems.
Conclusion
This case study demonstrates the feasibility and benefits of implementing seawater desalination projects to address water scarcity challenges. By focusing on capacity, water quality, energy efficiency, and environmental impact, such projects can provide sustainable water solutions for coastal communities.
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