External Pressure Reinforced Hollow Fiber Membrane PVDF Material Zeropa® ZS-L Series
Shuiyi Zeropa™ Series Submerged Ultrafiltration (UF) Membranes employ 1.35mm large-bore PVDF composite membranes and high-packing-density module design, delivering superior performance with high permeate flux, stable permeate quality, robust anti-fouling performance, compact footprint, and low energy consumption. These systems are extensively applicable in water reuse, advanced wastewater treatment, and municipal water supply. For large-scale municipal water projects, the recommended siphon-based, non-electric water production reduces energy consumption by over 50%compared to conventional pressurized systems.
Description
- The membrane pores are uniform and have a high porosity rate.
The fiber has an average pore size of 0.03μm, with uniformly distributed pores, high porosity, higher resistance to pollution, and a longer lifespan. By adjusting the membrane material formula and upgrading the process, the operational flux has increased by 25%. - Ultra-fine inner lining fibers, high packing density
The ultra-fine inner lining fibers are packed in a columnar assembly structure, increasing packing density by 50%, effectively reducing land occupation and project investment. - High retention rates for bacteria and viruses
Bacterial retention >5Log, viral retention >4Log, ensuring water quality is safe and stable for drinking, meeting health and safety standards, and possessing product health permit certificate. - No-Power (Siphon-Based) water production
Shuiyi low-pressure high-flux submerged UF membranes can operate with power-free siphon-based water production, saving >50% energy and achieving 97% water production efficiency.
Data Sheet
| Model
|
Parameter | ||||
| Item | SM20-ZS35L | SM40-ZS35L | SM20-ZS50L | SM40-ZS50L | |
| Membrane cassette parameters | Total membrane area | 700 m² | 1400 m² | 1000 m² | 2000 m² |
| Number of membrane elements | 20 units | 40 units | 20 units | 40 units | |
| Arrangement style | 4 rows | 4 rows | 4 rows | 4 rows | |
| Membrane cassette length | 2110 mm | 2510 mm | 2110 mm | 2510 mm | |
| Membrane cassette width | 792 mm | 792 mm | 792 mm | 792 mm | |
| Membrane cassette height | 2330 mm | 2330 mm | 2850 mm | 2850 mm | |
| Membrane element parameters | Membrane element model | ZS-35L | ZS-50L | ||
| Effective membrane area | 35 m² | 50 m² | |||
| Form of membrane modules | Columnar | ||||
| Membrane material | Support layer: PET; Separation layer: PVDF | ||||
| Membrane configuration | Outside-in hollow fiber membrane | ||||
| Nominal pore size⁽¹⁾ | 0.03 μm | ||||
| Membrane fiber outer diameter | 1.35 mm | ||||
| Dimensions | φ192×1660 mm | φ192×2180 mm | |||
| Interface size | φ50 | φ50 | |||
| Membrane operational parameters | Recommended transmembrane pressure differential | 0~35 kPa | |||
| Maximum backwash pressure | 70 kPa | ||||
| Operational flux⁽²⁾ | 25~40 L/m²·h,25℃ | ||||
| Backwash flux⁽²⁾ | 40~80 L/m²·h | ||||
| Operating temperature | 5~40 ℃ | ||||
| Operational pH range | 2~10 | ||||
| Aeration intensity⁽³⁾ | 4~6 (Nm³/h•unit) | ||||
| Chemical cleaning pH range⁽⁴⁾ | 1~11 | ||||
| Maximum NaClO tolerance concentration | 3000 mg/L | ||||
| Permeate quality⁽⁵⁾ | Turbidity | ≤0.5 NTU | |||
| SDI15 | ≤3.0 | ||||
Note:
(1) Test method: GB/T38949-2020 Determination of Pore Size for Porous Membranes—Standard Particle Method, standard particles: polystyrene microspheres;
(2) Designed flux and backwash flux depend on the operation and maintenance of the entire system;
(3)Columnar membranes are calculated per unit, while membrane assemblies are calculated based on the projected area of the membrane part (upper part);
(4) Cleaned under standard conditions at 30°C;
(5)The quality of the produced water may vary slightly depending on the quality ofthe inlet water.
The data presented herein are derived from specific tests and are true and reliable. However, differences may exist between test conditions and actual application environments, so actual results may vary. It is recommended that users verify and adjust according to their specific operating conditions and assume relevant responsibilities themselves.
Applications
Shuiyi Zeropa™ series submerged UF membrane products have strong resistance to fluctuations in water quality and hydraulic shock loads, capable of handling more complex inlet water qualities. Optional siphon-based power-free water production, suitable for large-scale projects with low operational costs and some variability in water quality and quantity. Widely used in municipal drinking water, municipal recycled water, textile dyeing wastewater, pulp and paper wastewater, basic chemical wastewater, mine water, steel water, PCB electroplating wastewater, power plant water, semiconductor water, and other water treatment areas.
