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Disc Tubu RO Membrane DTRO DTNF
Disk tubular RO/NF DTRO / DTNF
DTRO/DTNF Introduction
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
DTRO/DTNF module
DTRO/DTNF Membrane
Disk
SUS center link
High pressure vessel
Inlet and outlet pipe and accessories
A typical process diagram
DTRO/DTNF Specifications
|
Items |
High pressure |
High pressure |
Super high pressure |
|
Mode |
DTRO-1 |
DTNF-1 |
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 (l/h) |
8-40 |
8-40 |
8-35 |
|
Disk material |
ABS |
ABS |
ABS |
|
Vessel materia |
Fiberglass |
Fiberglass |
Fiberglass/SUS |
|
Operation pressure (bar) |
75 |
75 |
120 |
|
Max. TMP (bar) |
9 |
9 |
9 |
|
Max. operation temperature (℃) |
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℃ |
2-11 |
2-11 |
2-11 |
Note:
Performance data above is the nominal value.
The actual permeate flux of individual module may be in ±15% range.
Test condition:
RO: NaCl 32,000mg/L@800psi.
NF: MgSO4 30,000mg/L@600psi.
DTRO High Pressure Disc Tubu RO Membrane Element
Application:
Lanfill leachate and other high TSS waste water
DTRO Membrane Element Dimensions
DTRO-1 size is 216mm, DTRO-2 size is 220mm.
DTRO Membrane Element Specifications:
|
Model |
DTRO-1 |
DTRO-2 |
|
Membrane type |
BW type |
SW type |
|
Membrane material |
Polyamide composite |
Polyamide composite |
|
Membrane cushion qty.(pc) |
209 |
209 |
|
Membrane element structure |
Disc tube with GRP vessel |
Disc tube with GRP vessel |
|
Membrane effective area |
9.4m2 (101ft2) |
9.4m2 (101ft2) |
|
Rejection(%) * |
98 |
99 |
|
Lowest rejection(%) |
95 |
98 |
|
Feed flow( l/h) |
500-1000 l/h |
500-1000 l/h |
|
Permeate flow( l/h) |
80-450 l/h |
80-350 l/h |
|
Disc material |
ABS |
ABS |
|
Max. feed side pressure drop: |
9bar |
9bar |
|
Max. feed side operation pressure |
75bar |
90bar |
|
Max. operating temperature: |
40℃ |
40℃ |
|
Allowable pH – continuous operation: |
6-9 |
6-9 |
|
Allowable pH – short term cleaning @40℃ range |
2-12 |
2-12 |
|
Free chlorine tolerance |
≤0.1ppm |
≤0.1ppm |
|
Water inlet and outlet connection (mm) |
12 swagelock |
12 swagelock |
|
Permeate connection (mm) |
9 coupling hose pipe |
9 coupling hose pipe |
Note:
Performance data above is the normal value.
The actual permeate flux of individual module may be in ±15% range.
Test conditions:
RO: NaCl 32,000.mg/L @55.2 bar.
DTRO Super High Pressure Disc Tubu RO Membrane Element
Application:
Lanfill leachate and other high TSS waste water
DTRO Membrane Element Dimensions
DTRO Membrane Element Specifications:
|
Model |
DTRO-H1 |
DTRO-H2 |
|
Membrane type |
SW type |
SW type |
|
Membrane material |
Polyamide composite |
Polyamide composite |
|
Membrane cushion qty.(pc) |
209 |
209 |
|
Membrane element structure |
Disc tube with GRP vessel |
Disc tube with GRP vessel |
|
Membrane effective area |
9.4m2 (101ft2) |
9.4m2 (101ft2) |
|
Rejection(%) * |
99 |
99 |
|
Lowest rejection(%) |
98 |
98 |
|
Feed flow( l/h) |
500-1000 l/h |
500-1000 l/h |
|
Permeate flow( l/h) |
80-350 l/h |
80-280 l/h |
|
Disc material |
ABS |
ABS |
|
Max. feed side pressure drop: |
9bar |
9bar |
|
Max. feed side operation pressure |
120bar |
160bar |
|
Max. operating temperature: |
40℃ |
40℃ |
|
Allowable pH – continuous operation: |
6-9 |
6-9 |
|
Allowable pH – short term cleaning @40℃ range |
2-12 |
2-12 |
|
Free chlorine tolerance |
≤0.1ppm |
≤0.1ppm |
|
Water inlet and outlet connection (mm) |
12 swagelock |
12 swagelock |
|
Permeate connection (mm) |
9 (hosepipe connection) |
9 (hosepipe connection) |
Note:
Performance data above is the normal value.
The actual permeate flux of individual module may be in ±15% range.
Test conditions:
RO: NaCl 32,000.mg/L @55.2 bar.
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