DTRO Membrane Column Membrane

The feed liquid (wastewater) enters the pressure vessel through the inlet and flows into the separation membrane through the internal circular guide plate. The separation membrane is a circular structure. The liquid flows back and forth between the guide plate and the membrane. The distance between the two guide plates is 3mm. There are convex points arranged in a certain way on the surface of the guide plate. These convex points make the liquid form strong turbulence during the flow process, increase the permeation rate and self-cleaning function, thereby effectively avoiding membrane blockage and concentration polarization, successfully extending the service life of the membrane and maintaining high-efficiency filtration flux. It is also easy to clean the scale on the membrane during cleaning, ensuring that the DT membrane assembly is suitable for harsh water inlet conditions.


■ DTRO Membrane Column Size


■ Working Principle of DTRO Reverse Osmosis Membrane


■ DTRO Membrane Column Technical Parameters

Model

75bar

90bar

120bar

Diaphragm Quantity (Pieces)

209

209

209

Membrane Area (m²)

>9.4

>9.4

>9.4

Inlet Flow Range (L/H)

500-1200

500-1200

500-1200

Water Output (L/H)

360

400

400

Stable Desalination Rate (%)

99

99.5

99.5

Minimum Desalination Rate (%)

97.5

99

99

Guide Plate Material

ABS

ABS

POM

Membrane Shell Material

Fiberglass

Fiberglass

Fiberglass

Maximum Operating Pressure (bar)

75

90

120

Maximum Pressure Difference (bar)

9

9

9

Inlet Water Temperature (℃)

5-40℃

5-40℃

5-40℃

Tolerance to Residual Chlorine (ppm)

<0.1

<0.1

<0.1

Continuous Operation pH Range

3-11

3-11

3-11

Chemical Cleaning pH Range

2-12

2-12

2-12

Testing Conditions:               

 75bar: 7000mg/l Nacl, 5.0MPa operating pressure, 25℃ water temperature, PH 8, Ry 30%;
90bar: 30000mg/l Nacl, 5.0MPa operating pressure, 25℃ water temperature, PH 8, Ry 30%;
120bar: 35000mg/l Nacl, 9.0MPa operating pressure, 25℃ water temperature, PH 8, Ry 30%.

 

■ DTRO Membrane Column Technology Advantages
● Membrane products specially designed to treat highly difficult wastewater;

●Compared with the rolled membrane element, the flow channel is wider;
●The convex point design of the guide plate can make the material form turbulence during the flow process, enhancing the anti-pollution ability of the membrane element;
●When the membrane is contaminated, some DTRO membranes and guide plates can be replaced according to the actual situation to reduce the cost of system consumables;
●The effluent water quality is stable and is less affected by external factors.

 

● Product performance may vary under different conditions. The information on this website is for reference only and is not intended to be used as a basis for performance guarantees in actual applications. WSD reserves the right to make changes. If required, clients may consult with our sales representatives about the latest information, of which no further notice will be given.