Disc-Tube Reverse Osmosis Membrane
Brand Name: NANOIMP
OEM/ODM: Accept
Manufacturer: Yes
Delivery Time: 3-15 days
Shipping Support: Express / Sea/ Land
Place of Origin: Hangzhou, China
E-mail: lena.hu@nano-sepmer.com
Main Models: CPDT-75 | CPDT-90 | CPDT-120 | CPDT-160
Product Performance Parameters
|
model |
CPDT-75 | CPDT-90 | CPDT-120 | CPDT-160 |
|
Max operating pressure (bar) |
75 |
90 | 120 |
160 |
|
Test pressure (bar) |
50±1 |
65±1 | 85±1 | 100±1 |
| Salt rejection (%) | 99% | 99% | 90%～97% | 90%～97% |
|
Test flow |
250 L/H |
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|
Circulation flow |
800±100 L/H |
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|
Max operating temperature |
40 °C |
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|
Transmembrane pressure |
4-8 bar |
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|
pH range (continuous operation) |
5-9 |
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Cleaning pH range |
2-12 |
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|
Feed flow rate (L/element) |
800-1000 |
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Product size parameters
(1) CPDT-75 and CPDT-90 Membrane Columns
|
Model |
CPDT-75 | CPDT-90 | |
|
Total component length A (mm) |
1400 |
1400 |
|
|
Membrane shell length B (mm) |
1200 |
1200 |
|
|
Membrane module diameter C (mm) |
214 |
219 |
|
|
Support height D (mm) |
98 |
98 |
|
|
Distance from permeate port to center E (mm) |
76 |
76 |
|
|
Distance from the concentrated water outlet to the center F (mm) |
56 |
56 |
|
|
Inlet/Concentrated water interface diameter (mm) |
12 |
12 |
|
|
Permeate outlet (mm) |
Quick-connect hose fitting Φ11.6×9 |
Quick connector hose Φ11.6×9 |
|
|
|
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(2) CPDT-120 and CPDT-160 Membrane Columns
|
Model |
CPDT-120 | CPDT-160 | |
|
Total component length A (mm) |
1400 |
1400 |
|
|
Membrane shell length B (mm) |
1200 |
1200 |
|
| Square End Plate Dimension C (mm) |
240 |
240 |
|
|
Distance from permeate port to center E (mm) |
76 |
76 |
|
|
Distance from the concentrated water outlet to the center F (mm) |
56 |
56 |
|
|
Permeate outlet (mm) |
Quick-connect hose fitting Φ11.6×9 |
Quick connector hose Φ11.6×9 |
|
|
|
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(3) DTRO Membrane Bag
| Name | Value | Description |
| Outer Diameter (mm) | 190 | Straight-line distance between vertices |
| Inner Diameter (mm) | 177 | Maximum distance between opposite sides |
| Central Hole Diameter (mm) | 44 | Central round hole for water passage |
| Profile Structure (mm) | Octagonal | Designed to match DTRO membrane stack structure |
|
|
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Application Scenarios
- High-salinity industrial wastewater volume reduction: Concentration of high-salinity wastewater from chemical and electroplating industries to reduce waste liquid volume and facilitate subsequent evaporation and crystallization.
- Hazardous waste liquid concentration: Volume reduction of hazardous waste liquid, retention of heavy metals and salts to cut hazardous waste disposal costs.
- High-concentration organic wastewater treatment: Wastewater generated from pharmaceutical bio-fermentation, fine chemicals, dyestuff and pesticide intermediate production.
- Mine high-salinity wastewater treatment: Desalination and concentration of mine high-salinity wastewater for water resource recovery and reuse.
- Power industry: Zero liquid discharge (ZLD) of desulfurization wastewater in thermal power plants, deep concentration of circulating blowdown water.
- Solid waste leachate treatment: Concentration and volume reduction of leachate from municipal solid waste landfills and waste incineration plants. It retains salts and pollutants and greatly cuts the volume of waste liquid for off-site transportation. Concentration of biogas slurry from kitchen waste fermentation to remove salts and pollutants for standard-compliant reuse or reduced-volume discharge.
Related Knowledge
Types of Membrane Fouling
Adsorption Fouling
Organics adsorb onto the membrane surface. Contaminants build up within membrane pores, shrinking pore size and raising membrane resistance. This fouling is difficult to remove. Main contaminants are dissolved substances and emulsions.
Scaling Fouling
Salts in raw water exceed solubility and precipitate as scale on membranes. Contaminants include colloids and particles: organics like fats, proteins and humic acid; inorganics such as calcium, magnesium, iron and phosphorus salts.
Biofouling
Microbes accumulate at the membrane-water interface in two phases: adhesion and growth. If biocide dosage is insufficient, attached microbes feed on nutrients and multiply to form biofilms, mainly bacteria and algae.
Warranty Period
The company warrants the performance of membrane elements for three 3 years. The three-year warranty period shall commence on the earliest of the following dates:
- The date when the reverse osmosis system is put into operation;
- Six 6 months from the date the membrane elements are shipped from the manufacturing site;
- Three 3 months after the membrane elements are shipped from Guangzhou / Shanghai, China to Taiwan of China, Japan, South Korea, Thailand, India, Malaysia, the United States and other designated locations in China.
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