MBR reinforced PVDF hollow fiber membrane
Features:
1) High water flux. By modifying PVDF, the hydrophilicity of the membrane is greatly improved, the porosity of the membrane is more than 70%, and the flux of the membrane product is increased by more than 30%.
2) High separation accuracy. The membrane pores are uniform and dense, and it can be controlled within 0.03-0.1 μm separation aperture to ensure the filtration precision.
3) Long service life. The unique embedded braided tube structure has high strength, and effectively eliminates the phenomenon of broken filaments, the unique coating production process makes the membrane tightly combined with the inner braided tube, effectively avoid membrane peeling phenomenon, recoil resistance is greatly enhanced.
4) Strong chemical resistance. It can be more thoroughly chemically cleaned to better solve the problem of membrane fouling, high recovery rate of membrane flux and longer service life.
Fiber Reinforced PVDF Membrane MBR Module
----The new MBR technology application
1. Membrane Biological Reactor
Membrane biological reactor (MBR) is a very new technology applied in the waste
water treatment. In the biological reaction tank, the MBR modules can separate the
clean water from the mixture of activated sludge and waste water directly. Because of
the high effective filtration, the outlet water from MBR modules will be very clean and
transparent. On other hand, the concentration of MLSS (activated sludge) can be
controlled easily by such application, so that the COD removed rate can be more
than >93%.
The diagram of the processing of the MBR system
2. The advantages of the fiber reinforced PVDF membrane MBR module
(1) Inside the membrane, there is a fiber woven hollow built in to reinforce the
membrane in two direction. Finally the membrane will be very strong and it can not be
broken during the application. The broken force will be >50kg for single piece of
membrane.
(2) The good quality of anti-fouling: Because of the special materials and structure of
the hollow, the smooth surface can not be easily fouled during operation.
(3) Quite good flow rate: Because of the fiber reinforced inside, the membrane can beCHINA FROTEC ENVIRONMENTAL CO.,LTD
made out with very good flow rate and strong.
(4) Quite good filtration precision: Because of the special structure of the PVDF
membrane, the hollow membrane have good quality of precision of filtration.
(5) The membrane can be easily recovered by cleaning washing, such as water
cleaning and chemical cleaning.
(6) Because of the strength of the membrane, it have very long life on duty.
(7) Because of the quality of PVDF materials, the membrane have good quality for
anti-oxidation.
SEM pictures of Intersection morphology of fiber reinforced MBR membrane
Note:(1). The amount of MBR modules are designed according to the HF-MBR-10-PVDF;
(2).The size of the MBR set is designed for your reference. Normally it will be designed
according to the real size of the MBR tank.
(3).The out water flow rate will be modified according to the specifications of the inlet waste
water, such as the COD, BOD..
5,The complete MBR Modules set and the MBR modules
| model |
FNT-MBR-10 |
FNT-MBR-15 |
FNT-MBR-20 |
| Effective membrane area (m2) |
10M2 |
15M2 |
20M2 |
| Recommended amount of aeration (m3/h curtain) |
3.5-4 |
4-4.5 |
4.5-5 |
| Nominal size (L×B×W mm) |
1010×535×45 |
1515×535×45 |
2020×535×45 |
| Membrane aperture(μm) |
0.03-0.1 |
| Membrane outer diameter(mm) |
0.9/1.8 1.2/2.2 |
| Filtering method |
Immersion suction filtration |
| Water collection method |
Water collection at both ends |
| Recommended conditions |
Rated critical design flux
(L/m2 h) |
15-30 |
| Service life (year) |
3-5 |
| Operating temperature (°C) |
10-45 |
| PH tolerance range |
2-11 |
| Sludge turbidity (g/L) |
4-12 |
| Tensile Strength (MPa) |
>120 |
| Operating pressure (MPa) |
-0.01~-0.05 (Negative pressure) |
| Backwash pressure (MPa) |
≤0.2 |
| Maximum influent residual chlorine concentration (mg) |
1200 (Maximum concentration of residual chlorine during cleaning≤5000) |
| Water turbidity (NTU) |
≤0.2 |
| Oil content (mg/L) |
Animal and vegetable oil <15 mineral oil≤2 |
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