Skid-mounted DTRO desalination system is designed for wastewater streams where conventional RO systems suffer from rapid fouling, scaling, and unstable performance.
By using disc tube membrane technology, the system enables reliable desalination and concentration under high-salinity and high-fouling conditions. The system is supplied as a skid-mounted package and can also be integrated into a containerized enclosure for harsh environments, remote sites, and rapid deployment.
We provide engineering support including system selection guidance, feed water analysis suggestions, and configuration optimization based on project requirements.
Skid-Mounted Disc Tube Reverse Osmosis (DTRO) System
The skid-mounted DTRO system integrates disc tube membrane modules, high-pressure pumping, and control instrumentation into a compact package.
It is engineered for applications requiring enhanced anti-fouling capability, high concentration performance, and reliable long-term operation. Depending on project conditions, the DTRO system can be delivered in skid-mounted or containerized configuration, supporting modular installation and flexible site deployment.
Key Features
System Placement
• Water Source
seawater, high-salinity brackish water, brine, high-fouling industrial wastewater
• Process Role
robust desalination / deep concentration unit for harsh feed conditions
• Downstream Use
product water reuse, utility supply, or further polishing treatment
Typical Applications
• Seawater desalination under high fouling risk conditions
• High-salinity brine concentration and volume reduction
• ZLD pretreatment and high-TDS wastewater management
• Coastal industrial utilities and process water supply
• Remote sites requiring stable desalination performance
DTRO System Process Overview
Step 1 – Feed Water Pretreatment
Raw wastewater is pretreated through multimedia, carbon, and cartridge filtration to reduce suspended solids and protect the DTRO membranes.
Step 2 – High-Pressure Pumping
Conditioned feed water is pressurized by a high-pressure pump to meet DTRO operating requirements.
Step 3 – Disc Tube RO Separation
Water passes through disc tube membrane modules, achieving effective separation under high salinity and high fouling conditions.
Step 4 – Permeate Collection
Treated permeate is collected in the RO permeate tank for reuse or downstream utilization.
Step 5 – Concentrate Discharge
Concentrated brine is discharged for further treatment, volume reduction, or ZLD processing.
Step 6 – CIP Cleaning
A dedicated CIP system enables chemical cleaning to restore membrane performance and ensure stable long-term operation.
Technical Specifications
| Model | EET-DTRO-M25 | EET-DTRO-M50 | EET-DTRO-M100 | EET-DTRO-M300 |
| Capacity | 25 m3/d | 50 m3/d | 100 m3/d | 300 m3/d |
| Feed Pressure | ≥2 bar | ≥2 bar | ≥2 bar | ≥2 bar |
| Feed Inlet Connection | DN25 | DN25 | DN50 | DN100 |
| Permeate Outlet Connection | DN25 | DN32 | DN50 | DN65 |
| Concentrate Outlet Connection | DN32 | DN40 | DN40 | DN80 |
| Installed Power (kW) | 22 | 55 | 70 | 120 |
|
L x W x H (in./ mm) |
354x94x110 / 9000x2400x2800 |
354x94x110 / 9000x2400x2800 |
236*2x94x110 / 6000*2x2400x2800 |
472*2x94x110 / 12000*2x2400x2800 |
| Container Size (ft) | 30 | 30 | 20*2 | 40*2 |
| Operating Parameters | Recovery Rate: 60%-80% |
| Salt Rejection: 99% | |
| Design Temperature: 25°C | |
| Operating temperature: 5-40°C | |
| Feed Water TDS: < 35000 mg/l | |
| Minimum Feed Pressure: 2 bar |
| Materials | High-pressure Piping: SS316L |
| Low-pressure Piping: uPVC | |
| Skid Frame: SS304 | |
| Electric Control Cabinet: IP54, Aluzinc-coated steel sheet |
|
| Pretreatment Filter Housing: FRP | |
| RO Pressure Vessel: FRP, 1000 psi (75 bar) |
| Optional Configurations | 1. Pretreatment Options: DAF / High-Gradient Magnetic Separation (HGMS) | |
| 2. Booster Pump System | 3. Product Water Transfer System | |
| 4. Post-treatment: Remineralization System | 5. Two-Year Spare Parts Kit | |
Note: Final configuration may vary based on feed water quality and site conditions.
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