10
III.
Specifications of Toray "HFU-2020HN" Membrane Module
Table 1. Specifications of membrane *
1)
Membrane Material
PVDF (Polyvinylidene fluoride)
Nominal Molecular Weight Cut Off
150,000 *
2)
Trans-Membrane
Pressure
Maximum *
3)
300 kPa (43.5 PSI)
Normal Operation
Lower than 200 kPa (29.0 PSI)
Storage and Operating
Temperature Range
0
– 40 degree C
(32
– 104 degree F)
Operating pH Range
1
– 10
*1): Please note that the specifications are subject to changes from time to time.
*2): The nominal molecular weight cut off is determined with the model test of dextran.
*3): TMP (Trans-Membrane Pressure) should be below 300 kPa (43.5 PSI) at any time
even during the filtration.
Table 2. Feed water limits *
1)
Turbidity
Intermittent Peak *
4)
Standard: 100 NTU
Potential *
5)
: 200 NTU
Continuous Maximum
Standard: 30 NTU
Potential *
5)
: 50 NTU
TSS
Intermittent Peak *
4)
Standard: 100 mg/L Potential *
5)
: 200 mg/L
Continuous Maximum
Standard: 30 mg/L
Potential *
5)
: 50 mg/L
Ozone
Not detected
Pretreatment Filter Mesh Size
Smaller than 200 micron meter
Temperature Range
0
– 40 degree C
(32
– 104 degree F)
pH Range
1
– 10
Maximum Feed Pressure
600 kPa (87.0 PSI)
*1): P
lease note that the specifications are subject to changes from time to time.
*4): The duration time should be less than 48 hours and the occurrence frequency
should not exceed more than once a month.
*5): In case of design with the Potential conditions, please contact us.
