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DTRO Membrane Systems

DTRO Membrane Systems for High-Salinity Wastewater Treatment

Reliable disc tube reverse osmosis (DTRO) systems designed for challenging industrial wastewater, landfill leachate, and high TDS streams.

What is DTRO Technology?

Disc Tube Reverse Osmosis (DTRO) is a high-pressure membrane technology developed for wastewater streams that are too complex for conventional RO systems. It is widely used in industrial and environmental applications where high salinity, high COD, and heavy fouling conditions are expected.

Unlike standard spiral wound RO membranes, DTRO uses an open channel disc-tube structure that reduces clogging risk and improves stability under extreme operating conditions.

Performance Highlight: DTRO systems can operate up to 120 bar and handle feedwater with TDS levels exceeding 100,000 mg/L.

Key Advantages of DTRO Membrane Systems

Stable Anti-Fouling Operation

Open-channel disc tube design reduces scaling and fouling, making it suitable for difficult wastewater streams.

High Pressure Capability

Operates reliably under pressures up to 120 bar, enabling treatment of extreme salinity wastewater.

Flexible Modular Design

System modules can be scaled up or down depending on treatment capacity and project requirements.

High Water Recovery

Typical recovery rates reach 80–95%, improving water reuse efficiency and reducing discharge volume.

Reduced Pretreatment Demand

Handles high turbidity and organic load with minimal pretreatment requirements compared to conventional RO.

Smart Automation

PLC-based control enables stable operation, remote monitoring, and reduced manual intervention.

Industrial Applications

Landfill Leachate

Effective treatment for high COD, ammonia, and heavy metal content leachate streams.

Industrial Wastewater

Suitable for chemical, pharmaceutical, textile, and food industry wastewater with high salinity and color.

ZLD Systems

Acts as a pre-concentration step in zero liquid discharge systems, reducing energy load on evaporators.

DTRO System Specifications

Parameter Standard DTRO High Pressure DTRO Hybrid NF-DT
Pressure75 bar120 bar60 bar
Salt Rejection98.5%99%95%
Max TDS80,000 mg/L120,000 mg/L50,000 mg/L
pH Range2–112–113–10

Frequently Asked Questions

1. What is DTRO used for?
DTRO is mainly used for high-salinity industrial wastewater, landfill leachate, and ZLD systems.

2. How is DTRO different from standard RO?
DTRO uses a disc-tube structure that resists fouling and handles much higher pollutant loads.

3. What is the maximum pressure of DTRO?
Up to 120 bar depending on system configuration.

4. Can DTRO treat raw landfill leachate directly?
Yes, it can handle high COD and ammonia with minimal pretreatment.

5. What recovery rate can be expected?
Typically 80–95% depending on feedwater quality.

6. Is DTRO suitable for ZLD systems?
Yes, it is commonly used as a pre-concentration stage in ZLD plants.

7. Does the system require high maintenance?
No, the anti-fouling design reduces cleaning frequency and downtime.

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