Containerized Seawater Desalination in Cape Verde
Cape Verde, an island nation off the coast of West Africa, faces seasonal freshwater scarcity due to limited natural water resources and increasing residential demand. A local utility company partnered with us to deploy a containerized seawater reverse osmosis (SWRO) system to provide reliable potable water for domestic use.
The objective was to design a system that is modular, easy to transport, quick to install, and capable of operating efficiently in coastal environments with high salinity and variable power conditions.
Our Solution: Containerized SWRO System
We supplied a fully integrated, containerized seawater desalination unit, built and tested at our facility before shipment. Key features of the system include:
- ISO 40-foot container, corrosion-resistant stainless steel frame, insulated and climate-adapted for marine use
- Production Capacity: 10 m³/h (10,000 liters/hour) of potable water
- Seawater RO Membranes: High-rejection membranes designed for >35,000 ppm TDS
- Pre-treatment System: Includes media filter (sand or MMF), cartridge filter, and antiscalant dosing
- Automation: PLC control with HMI panel, optional remote monitoring
- Power Supply: Configurable for 380V/50Hz or other regional standards
Technical Data Summary
| Parameter | Specification |
| Production Capacity | 10 m³/h (44 GPM) |
| Container Type | 40'' ISO, insulated, marine-grade |
| Feedwater Source | Seawater (TDS > 35,000 ppm) |
| Recovery Rate | Approx. 40-45% |
| Pretreatment | Multimedia filter + cartridge filter + dosing system |
| Pump | Danfoss pump with VFD |
| ERD | With Energy Recovery Device |
| Membrane Type | Dupont SW30HRLE-400 |
| Control System | PLC with HMI touch screen |
| Power Supply | 380V / 50Hz (customizable) |
| Output Water Use | Potable/domestic water supply |
Commissioning & Operation
The unit was delivered, installed, and commissioned in local.
Onsite testing confirmed the following:
- Product water TDS < 500 ppm
- Stable permeate flow of 10 m³/h over 24-hour cycles
- Smooth system operation, fully automatic with minimal operator intervention
- Withstood local temperature and salt-laden air conditions
Client Testimonial
“The system was plug-and-play. Within a week, we were producing high-quality fresh water. The container design makes it easy to maintain and relocate if needed. It’s a sustainable solution for our community.”
— Project Manager, Cape Verde
Project Highlights
- Modular container design: fast deployment, minimal civil work
- Reliable freshwater supply: even during dry seasons
- Built for harsh marine environments
- Remote monitoring for easy maintenance
- With energy recovery device
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