Shuiyi Tapfilm® Series Drinking Water Nanofiltration Membrane Products
Shuiyi Tapfilm® series drinking water nanofiltration membrane products include TNF90 and TNF70 models, designed for various applications and requirements. Effectively remove organics and hardness from raw water, providing purification and softening effects. TNF90 removes approximately 90% of hardness, while TNF70 removes about 70% of hardness.
Description
- Low operational energy consumption
Operate at low pressure, effectively reducing energy consumption. - High COD removal rate
An advanced formulation system ensures more stable retention performance. - Customized professional design
Shuiyi TNF series nanofiltration membranes are specifically designed and produced for various scenarios, fully meeting customer goals and requirements.
Data Sheet
| Model Item | Parameter | |||
| TNF90-8040 | TNF70-8040 | |||
| Membrane element parameters⁽¹⁾ | Effective membrane area | 37m² | ||
| Membrane material | Aromatic polyamide | |||
| Structure | Spiral-wound | |||
| Inlet mesh thickness | 34mil | |||
| Dry membrane weight | 13kg | |||
| Wet membrane weight | 15kg | |||
| Length | 1016mm | |||
| Diameter | 201mm | |||
| Collector pipe diameter | 29mm | |||
| Standard test solution | 2000mg/L MgSO₄ 500mg/L CaCl₂ | 2000mg/L MgSO₄ | ||
| Operating pressure | 0.75MPa | |||
| Test temperature | 25℃ | |||
| Recovery rate | 15% | |||
| pH | 7~8 | |||
| Water production rate ⁽²⁾ | 40m³/d | 34m³/d | ||
| Standard rejection rate | 98%(MgSO₄); 98%(CaCl₂); 90%(NaCl) | ≥99%(MgSO₄); 45~55%(NaCl) | ||
| Membrane operational parameters | Maximum operating pressure | 4.0MPa/580psi | ||
| Maximum inlet water flow | 17m³/h | |||
| Inlet water temperature range | 5~40℃ | |||
| Inlet water pH range | 2~11 | |||
| Cleaning pH range⁽³⁾ | 1~12 | |||
| Maximum inlet water turbidity | 1.0NTU | |||
| Maximum inlet water SDI15 | 5.0 | |||
| Inlet water residual chlorine | <0.1mg/L | |||
| Maximum pressure drop per element⁽⁴⁾ | 0.1MPa | |||
Note:
(1) The parameters mentioned are based on data collected after the system has been running stably for 30 minutes;
(2) Water production volume has a deviation range of ±15%;
(3) Chemical cleaning is recommended at temperatures ≤30°C, with cleaning solution pH values not exceeding 2.0-12.0 above this temperature;
(4) When running in multi-element pressure vessels, the maximum pressure drop across the vessel should be kept within 0.25 MPa, not exceeding 0.3 MPa under any circumstances.
Data presented in the text are tested and reliable, yet variations may occur due to different testing methods and conditions. Therefore, users should thoroughly understand the products of Ningbo Shuiyi Membrane Technology Development Co., Ltd., integrating them into their actual application processes.
Applications
Shuiyi Tapfilm® series drinking water nanofiltration membranes, known for their high removal rates of organics and hardness, are suitable for advanced treatment of municipal water sourced from surface and groundwater.
