Audited Supplier
DNF1/DNF2 4040 8040
Hollow
NF
37sqm
Spiral-Wound
Aromatic Polyamide
34mil
SHUIYI or Customized
Standard Export Cartons/ Pallets
1016mm*201mm*29mm
Made in China
Product Description
About Shuiyi:
After years of honed in the competition, SHUIYI has become one of the few manufacturers in the industry with a full range of membrane technologies and products including microfiltration (MF), ultrafiltration (UF), nanofiltration (NF) and reverse osmosis (RO).
Our membrane products are widely used in the application fields of municipal sewage reclamation, industrial wastewater zero discharge, reclaimed water reuse, pure water preparation, highly polluting wastewater treatment, river restoration, decentralized rural sewage treatment, process concentration, and separation, etc., with rich application experience and engineering project cases.
Introduction
Demole® Series of nanofiltration membrane is specially developed for the material concentration and separation fields. They are suitable for industries such as salts mine recycling, zero discharge of high saltwater, material separation, and concentration.
DNF 1 has a high removal rate of total organic carbon (TOC) and a medium rejection rate of inorganics salts. It is embedded with ultra-low pressure and pollution-resistance membrane preparation technology to realize the double improvement of service life cut down the energy consumption.
DNF2 has a high rejection rate for multivalent ions, a low rejection rate for monovalent ions, accurate molecular weight interception, and is also suitable for the separation and purification of small molecule pharmaceutical drugs.
Features
Specifications
PS. 1. The performance parameters area measured after 30 minutes of stable operation of the system
2. The deviation range of water yield is ± 15%
Application Fields:
After years of honed in the competition, SHUIYI has become one of the few manufacturers in the industry with a full range of membrane technologies and products including microfiltration (MF), ultrafiltration (UF), nanofiltration (NF) and reverse osmosis (RO).
Our membrane products are widely used in the application fields of municipal sewage reclamation, industrial wastewater zero discharge, reclaimed water reuse, pure water preparation, highly polluting wastewater treatment, river restoration, decentralized rural sewage treatment, process concentration, and separation, etc., with rich application experience and engineering project cases.
Introduction
Demole® Series of nanofiltration membrane is specially developed for the material concentration and separation fields. They are suitable for industries such as salts mine recycling, zero discharge of high saltwater, material separation, and concentration.
DNF 1 has a high removal rate of total organic carbon (TOC) and a medium rejection rate of inorganics salts. It is embedded with ultra-low pressure and pollution-resistance membrane preparation technology to realize the double improvement of service life cut down the energy consumption.
DNF2 has a high rejection rate for multivalent ions, a low rejection rate for monovalent ions, accurate molecular weight interception, and is also suitable for the separation and purification of small molecule pharmaceutical drugs.
Features
- High rejection rate for element whose weight > 300.
- Reliable and stable permeate water quality;
- Excellent chemical cleaning resistance
- Advanced anti-fouling layer, guarantees a long service life
Specifications
| Membrane Specifications | Model | DNF1-8040 | DNF1-4040 |
| Material | Aromatic Polyamide | ||
| Structure | Spiral wound | ||
| Active Membrane Area | 37 m2 | 7.6 m2 | |
| Spacer Thickness | 34 mil | ||
| Performance | Standard Test Solution | 2000 mg/L MgSO4 500 mg/L NaCl | |
| Operation Pressure | 0.5 MPa | ||
| Test Temperature | 25 | ||
| Recovery | 15% | ||
| pH | 6.5-7 | ||
| Permeate Flow Rate (m3/d) /GPD | 40/10500 | 8/2100 | |
| Rejection Rate (%) | ≥ 98 (MgSO4) 30±10 (NaCl) | ||
| Application Limits | Max. Operation Pressure (MPa)/GPM | 4.1/600 | |
| Max. Feed Flow (m3/h)/GPM | 17/75 | 3.6/16 | |
| Feed Temperature Range (oC) | 5-45 | ||
| Feed pH Range | 3-10 | ||
| Cleaning pH Range | 2-11 | ||
| Max. Feed Turbidity | 1.0 NTU | ||
| Max. Feed SDI15 | 5 | ||
| Residual Chlorine Control | <0.1 | ||
| Max. Pressure Drop of Single Element | 15 psi | ||
| Membrane Specifications | Model | DNF2-8040 | DNF2-4040 |
| Material | Aromatic Polyamide | ||
| Structure | Spiral wound | ||
| Active Membrane Area | 37 m2 | 7.6 m2 | |
| Spacer Thickness | 34 mil | ||
| Performance | Standard Test Solution | 2000 mg/L MgSO4 500 mg/L NaCl | |
| Operation Pressure | 0.75 MPa | ||
| Test Temperature | 25 | ||
| Recovery | 15% | ||
| pH | 6.5-7 | ||
| Permeate Flow Rate (m3/d) /GPD | 38/10000 | 7.6/2000 | |
| Rejection Rate (%) | ≥ 98 (MgSO4) 60±10 (NaCl) | ||
| Application Limits | Max. Operation Pressure (MPa)/GPM | 4.1/600 | |
| Max. Feed Flow (m3/h)/GPM | 17/75 | 3.6/16 | |
| Feed Temperature Range (oC) | 5-45 | ||
| Feed pH Range | 3-10 | ||
| Cleaning pH Range | 2-11 | ||
| Max. Feed Turbidity | 1.0 NTU | ||
| Max. Feed SDI15 | 5 | ||
| Residual Chlorine Control | <0.1 | ||
| Max. Pressure Drop of Single Element | 15 psi | ||
PS. 1. The performance parameters area measured after 30 minutes of stable operation of the system
2. The deviation range of water yield is ± 15%
Application Fields:
- Halogen refining industry
- Salt mine recycling
- Food Concentration
- Purification in the medicine industry
- Water purification
- Reclaim water reuse
- Cooling water treatment
- Boiler water treatment
