n SINOMEMB ® UF membrane module SNU-HI-1-880 type
The core SINOMEMB ® series SN U-HI-1-880 hollow fiber UF membrane element is suitable for systems with a capacity of more than 50 m 3 /hr (220gpm) . Longer module length, larger effective membrane area, and higher packing density make it the module with the highest effective membrane area among SINOMEMB ® series UF modules , helping customers to achieve more economical membrane system design , can be widely used in various water treatment applications such as surface water, well water, seawater , industrial wastewater, and secondary and tertiary treatment of sewage .
Ø Membrane element specifications
| Membrane element model | Effective membrane area ft 2 (m 2 ) | Effective volume G( L ) | weight empty /full of water ( kg ) |
| SN U-HI-1-880 | 808(75) | 10.3(39) | 61/100 |
| Inlet size | Water outlet size | Concentrated water outlet size | Membrane Polymer |
| DN50 | DN50 | DN50 | PES |
| Membrane inner diameter/outer diameter (mm) | Filtration precision (μ m ) | shell material | Sealant material |
| 1.0/1.6 | 0.01 | U-PVC | epoxy resin |
Ø Membrane element operating parameters
| Filtration flux ( 25℃ ) L/㎡·hr | 50-80 |
| Flow range m³/hr | 3.7-6.0 |
| Maximum influent turbidity (NTU) | ≤50 |
| Maximum resistance to residual chlorine (NaCLO) (ppm) | Continuous: 50; Momentary: 500 |
| Maximum anti-suspended solid capacity (ppm) | ≤50 |
| Maximum influent particle size ( μm ) | 100 |
| Working temperature (℃) | 5-45 |
| pH range | 1-13 |
| Maximum water production (L/m³·h) | 120 |
| Maximum water inlet pressure ( 20°C ) (Mpa) | 0.625 |
| Maximum transmembrane pressure difference (Mpa) | 0.21 |
| Maximum backwash pressure (Mpa) | 0.25 |
| Maximum air flushing flow rate (Nm³/hr) | / |
| General backwash cycle (min) | 15-60 |
| General backwash time (sec) | 30-60 |
| General backwash flow rate (L/m³·h) | 100-360 |
| General chemical enhanced backwash cycle (day) | 1-15 |
| General chemical backwashing time (min) | 1-15 |
| General chemical cleaning cycle (day) | 30-180 |
| General chemical cleaning time (min) | 90-480 |
| General chemical cleaning chemicals | NaClO or H2O2 500ppm , NaOH (PH≤13), HCl (PH≥1 ) |
| How to run /operate | inside-out / full flow or cross flow filtration |
| Expected water production SDI | ≤2.5 |
| Expected product water turbidity NTU | ≤0.1 |
| Bacteria removal rate (log) | >6 |
| E. coli removal rate (log) | >6 |
| service life | ≥3 years under standard conditions |
Ø Membrane element size
| L | L1 | L2 | L3 | L4 | Diameter Φ |
| 2360mm | 2000mm | 2130mm | 2320mm | 180mm | 225mm |
| (92.9)in | (78.7)in | (83.9)in | (91.3)in | (7.1)in | (8.9)in |
Ø Membrane element operation guide
During the operation of the UF system, it is necessary to avoid sudden changes in pressure during system start-up, shutdown, operation, cleaning, maintenance, etc., as well as exceeding the maximum pressure specified in this manual, to prevent possible membrane breakage, sealing, etc. End fall off, membrane shell cracking and other serious damage consequences; this series of products have been treated with anti-corrosion and membrane wire protection before leaving the factory, and the inner membrane wire of the module is in a semi-dry state. For manual operation, the water production rate should be set to 50% of the design water production rate, and the initial water production must be discharged directly and cannot be used as product water.
Ø Membrane element product usage tips
The normal start-up and normal cleaning and maintenance of the UF system are the key to ensure the long-term normal use of membrane products. Before starting the system, it should be ensured that the parameters of each valve, instrument, pre-processing equipment, signal transmission equipment, power equipment, etc. meet the design specifications and requirements, so as to ensure the safe, stable and up-to-standard operation of the overall system. Please refer to the product technical manual for the debugging and testing work of the system in the early stage.
Ø Disclaimer
Failure to operate in strict accordance with the operating limits and guidelines set forth herein voids our limited warranty. If the UF system is out of service, please inject protective liquid inside the membrane module for anti-corrosion treatment, so as to avoid the increase of maintenance cost caused by the large number of microorganisms in the system.
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