External Pressure Reinforced Hollow Fiber Membrane PVDF Material Shuiyi Zeropa® ZS-L Series
Shuiyi Zeropa® series submerged UF membrane products feature 1.35mm high-flow PVDF composite membranes and high packing density membrane assemblies, offering large water production flux, stable water quality, strong anti-pollution capabilities, small footprint, and low energy consumption. Widely applicable in fields such as reclaimed water reuse, advanced wastewater treatment, and municipal water supply. For large municipal water supply projects, it is recommended to use siphon-based, non-powered water production, reducing energy consumption by more than 50%.
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 approval. - Power-free siphon-produced water
Shuiyi low-pressure high-flux submerged UF membranes can operate using power-free siphon-produced water, saving over 50% energy, with water production efficiency increased to 97%.
Data Sheet
| Membrane cassette model | Parameter | ||||||
| Item | |||||||
| SM20-ZS35L | SM40-ZS35L | SM20-ZS50L | SM40-ZS50L | SSP40-ZS40AP | SDP72-ZS40AP | ||
| Membrane cassette parameters | Total membrane area | 700m² | 1400m² | 1000m² | 2000m² | 1600m² | 2880m² |
| Number of membrane elements | 20 units | 40 units | 20 units | 40 units | 40 assemblies | 72 assemblies | |
| Arrangement style | 4 rows | 4 rows | 4 rows | 4 rows | Single row | Double row | |
| Membrane cassette length | 1410mm | 2410mm | 1410mm | 2410mm | 3776mm | 3386mm | |
| Membrane cassette width | 792mm | 792mm | 792mm | 792mm | 1005mm | 1725mm | |
| Membrane cassette height | 2330mm | 2330mm | 2850mm | 2850mm | 2950mm | 2940mm | |
| Membrane element parameters | Membrane element model | ZS-35L | ZS-50L | ZS-40AP | |||
| Effective membrane area | 35m² | 50m² | 40m² | ||||
| Form of membrane modules | Columnar | Membrane assembly | |||||
| Membrane material | Support layer: PET; Separation layer: PVDF | ||||||
| Membrane form | External pressure hollow fiber membrane | ||||||
| Nominal pore size⁽¹⁾ | 0.03μm | ||||||
| Membrane fiber outer diameter | 1.35mm | 2.0mm | |||||
| Dimensions | φ192×1660mm | φ192×2180mm | 824×46×2200mm | ||||
| Interface size | φ50 | φ50 | DN32 | ||||
| Membrane operational parameters | Recommended transmembrane pressure differential | 0~35kPa | |||||
| Maximum backwash pressure | 70kPa | ||||||
| Operational flux⁽²⁾ | 25~40L/m²·h,25℃ | ||||||
| Backwash flux⁽²⁾ | 40~80L/m²·h | ||||||
| Working temperature | 5~40℃ | ||||||
| Operational pH range | 2~10 | ||||||
| Aeration intensity⁽³⁾ | 4~6 (Nm³/h•unit) | 60~120(Nm³/m²·h) | |||||
| Chemical cleaning pH range⁽⁴⁾ | 1~11 | ||||||
| Maximum NaClO tolerance concentration | 3000mg/L | ||||||
| Produced water quality⁽⁵⁾ | Turbidity | ≤0.5NTU | |||||
| 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 ofthe 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 understandard 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 have been tested and are reliable, but variability may occur due to different testing methods and operating conditions. Therefore, usersshould combine practical application processes and thoroughly understand the products of Ningbo Shuiyi MembraneTechnology Development Co., Lt
Applications
Shuiyi Zeropa® series submerged UF membrane products have strong resistance to water quality and flow 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.
