RISINGSUN MEMBRANE TECHNOLOGY (BEIJING) CO., LTD.
DTRO/DTNF Membrane Disk

DTRO/DTNF Membrane Disk

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DTRO/DTNF Membrane Disk

Disk tubular membrane technology referred to as DT, common for disk tubular RO (DTRO) and disk tubular (DTNF). The membrane module structure is distinct from the traditional spiral wound membrane.With open flow channels,feed flows through the entrance into the pressure vessel and reach the disk in a short distance. Then the feed flows 180 degrees from one side of the membrane reverse flow into the other side of the membrane,into the next disk again and finally runoff from outlet.The special design makes feed collide with the disk bulge through the membrane surface forming turbulence which increases flow rate and self-cleaning function and long service life of the membrane.

Features

  • High strength design, up to 120 bar operating pressure
  • Open disk with low flow resistance and concentration polarization
  • High pressure resistance and salt rejection membrane

Applications

  • Landfill leachate
  • High concentration of industrial wastewater
  • Spiral wound RO/NF concentrates
  • Industrial high salts water

Items

High pressure

High pressure

Super high pressure

Model

SG-DTRO-1

SG-DTNF-1

SG-DTRO-2

Membrane material

Composite polyamide

Composite polyamide

Composite polyamide

Disk qty. (pc)

209

209

209

Rejection (%)

99

97

99

Membrane effective area(m²)

9.4

9.4

9.4

Feed flux (l/h)

500-1200

500-1200

500-1000

Permeate flux range (I/h)

8-40

8-40

8-35

Disk material

ABS

ABS

ABS

Vessel material

Fiberglass

Fiberglass

Fiberglass/SUS

Operation pressure (bar)

75

75

120

Max. TMP (bar)

9

9

9

Max. operation temperature (°C)

40

40

40

Chlorine tolerance (ppm)

<0.1

<0.1

<0.1

Recommended operation pH

6-9

6-9

6-9

Chemical cleaning pH@40°C

2-11

2-11

2-11