A Membrane bioreactor (MBR) processes are mainly used for wastewater treatment (WWT) by using microfiltration (MF) or ultrafiltration (UF) and integrating them with a biological process like a suspended growth bioreactorA membrane bioreactor is
essentially a replacement in the conventional activated sludge (CAS) system for the settlement tank for solid/liquid separation. The MBR gives to the end user improved process control and much better product water quality.
The MBR process operates over a considerably different range of parameters than the conventional activated sludge process
· SRT 5 -20 days for conventional system - 20 -30 days for MBR
· F/M 0.05 -1.5 d-1for conventional system - < 0.1 d-1for MBR
In general MBRs have three distinct membrane configurations (Fig.3),
1. Hollow fibre (HF)
2. Multitube (MT)
3. Flat sheet (FS)
2.MBR Application
When MBR is your first choice ?
1. Limited space or you want to use space efficiently.
2. End user requires high quality treated water(e.g. for water reuse)
Operation Parameters:
Appearance
|
Hollow fiber
|
Membrane material
|
R-PVDF
|
Effective membrane area(m2)
|
10m2
|
15m2
|
20m2
|
Design Flux m3/0.1 Mpa 25℃
|
10-40l/m2/H
|
Filter Type
|
Immersion suction filtration
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Component Connection Mode
|
Plug in
|
Type of nozzle
|
/
|
Connecting pipe
|
32
|
Packaging material of membrane module
|
Plastic and Wooden Case
|
Service temperature
|
5-45℃
|
Operating pressure
|
<=0.3MPa
|
PH range
|
1-14
|
Molecular weight cut off (Dal)
|
67000-100000
|
Membrane material
|
Hydrophilicity PVDF (PET lining)
|
Membrane pore size
|
0.1um/0.04um
|
Porosity
|
>70%
|
Initial water yield
|
>300L/m2·h
|
Design flux
|
10-40L/m2·h
|
PH range
|
1-12
|
Operating temperature range
|
5-45℃
|
Aeration rate
|
Gas water ratio 15:1-20:1
|
Model
|
JX-MBR-10
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JX-MBR-15
|
JX-MBR-20
|
Membrane Surface Area
|
10 S.Q.M
|
15 S.Q.M
|
20 S.Q.M
|
Membrane Material
|
R-PVDF and PET
|
R-PVDF and PET
|
R-PVDF and PET
|
Pore Size
|
0.1-0.04um
|
0.1-0.04um
|
0.1-0.04um
|
Fiber Diameter
|
OD:1.9-2.2mm
ID:0.8-1.0mm
|
OD:1.9-2.2mm
ID:0.8-1.0mm
|
OD:1.9-2.2mm
ID:0.8-1.0mm
|
Flow Path
|
Out-in
|
Out-in
|
Out-in
|