DTRO membrane technology, also known as disc-tube membrane technology, is divided into two main types: DTRO (Disc-Tube Reverse Osmosis) and DTNF (Disc-Tube Nanofiltration). It is a patented membrane separation technology. This technology was developed by the company specifically for high-concentration industrial wastewater, industrial brine, spiral RO/NF concentrate, and landfill leachate fields.
DTRO/DTNF High-Pressure Membrane
Performance Test Conditions
Table 1
|
Category |
DTRO |
||
|
Model |
DTRO-8042-75 |
DTRO-8042-90 |
DTRO-8042-120 |
|
Diaphragm type |
FR |
SW |
SW |
|
Number of diaphragms |
209 |
209 |
209 |
|
Membrane area (m) |
> 9.4 |
> 9.4 |
> 9.4 |
|
Inlet flow range (L/h) |
500-1200 |
500-1200 |
500-1200 |
|
Water yield **(L/h) |
400 |
230 |
230 |
|
Stable desalination rate **(%) |
99 |
99.5 |
99.5 |
|
Minimum desalination rate (%) |
98.5 |
99 |
99 |
|
Material of diversion disc |
ABS |
ABS |
ABS |
|
Membrane shell material |
glass steel |
glass steel |
glass steel |
|
Operating pressure (bar) |
75 |
90 |
120 |
|
Maximum differential pressure (bar) |
9 |
9 |
9 |
|
Maximum operating temperature (℃) |
45 |
45 |
40 |
|
Residual chlorine tolerance (ppm) |
<0.1 |
<0.1 |
<0.1 |
|
Continuous running pH |
3-11 |
3-11 |
3-11 |
|
Chemical cleaning pH @ 40 ℃ |
2-12 |
2-12 |
2-12 |
Water production and desalination rate are based on the following test conditions: FR:2000mg/l NaCL solution, test pressure 15.5bar, 25 ℃; SW:3 2000mg/lNaCL solution, test pressure 55bar, 25 ℃, pH:7-8;
The water yield of a single component may vary in the range of + 20%, and the actual water yield will vary according to the quality of the influent.
Table 2
|
Category |
DTNF |
|
|
Model |
DTNF-8042-75 |
DTNF-8042-90 |
|
Diaphragm type |
NFF |
NFF |
|
Number of diaphragms |
209 |
209 |
|
Membrane area (m) |
> 9.4 |
> 9.4 |
|
Inlet flow range (L/h) |
500-1200 |
500-1200 |
|
Water yield (L/h) |
420 |
420 |
|
Stable desalination rate (%) |
98 |
98 |
|
Minimum desalination rate (%) |
96 |
96 |
|
Material of diversion disc |
ABS |
ABS |
|
Membrane shell material |
glass steel |
glass steel |
|
Operating pressure (bar) |
75 |
90 |
|
Maximum differential pressure (bar) |
9 |
9 |
|
Maximum operating temperature (℃) |
45 |
45 |
|
Residual chlorine tolerance (ppm) |
<0.1 |
<0.1 |
|
Continuous running pH |
3-11 |
3-1l |
|
Chemical cleaning pH @ 40 ℃ |
2-12 |
2-12 |
Water production and desalination rate are based on the following test conditions: FR: 2000mg/l NaCL solution, test pressure 15.5bar, 25 ℃; SW: 32000mg/lNaCL solution, test pressure 55bar, 25 ℃, pH: 7-8;
The water yield of a single component may vary in the range of + 20%, and the actual water yield will vary according to the quality of the influent.
Table 3
|
Model |
DTRO-8042-75/DTNF-8042-75 |
DTRO-8042-90/DTNF-8042-90 |
|
Pressure (bar) |
75 |
90 |
|
Total length of membrane module A(mm) |
1400 |
1400 |
|
Membrane shell length B(mm) |
1200 |
1200 |
|
Diameter of membrane module C(mm) |
216 |
220 |
|
Support height D(mm) |
73 |
73 |
|
Distance between inlet and center E(mm) |
76 |
76 |
|
Distance between thick nozzle and center F(mm) |
56 |
56 |
|
Diameter of inlet/concentrated water interface (mm) |
12 |
12 |
|
Water production interface (mm) |
Hose Quick Interface 11.6x9 |
Hose Quick Interface 11.6x9 |
Table 4
|
Category |
DTRO-8042-120 |
|
Pressure (bar) |
120 |
|
Total length of membrane module A(mm) |
1400 |
|
Flange spacing B(mm) |
1225 |
|
Flange width C(mm) |
240 |
|
Distance between inlet and center E(mm) |
76 |
|
Distance between thick nozzle and center F(mm) |
56 |
|
Diameter of inlet/concentrated water interface (mm) |
12 |
|
Water production interface (mm) |
Hose Quick Interface 11.6x9 |
