1
I.
Introduction
Toray PVDF Hollow Fiber Membrane Module "HFUG series" is a pressurized
hollow fiber UF (Ultra Filtration) membrane module developed with polymer
science and membrane fabrication technologies accumulated over decades of
successful membrane manufacturing at Toray Industries, Inc. The HFUG
series utilizes a fiber with the same physical and chemical properties as the HFU
series, but achieves an increased water production 25% higher than its
predecessor.
The membrane material is Polyvinylidene fluoride (PVDF). The nominal pore
size of the membrane is 0.01 micron, just like the HFU series.
The module, which is permanently potted in its casing, is pressure-driven which
provides equal filtrate quality to submerged modules, while offering greater TMP
range for more flexible plant operation. Maximum operating pressure is 300
kPa (43.5 PSI). Flow direction is outside-in, which is more suitable for higher
turbidity water treatment because of the air-scrubbing effectiveness.
Additionally, outside-in modules are able to remove suspended solids more
effectively at higher recovery rates compared to inside-out fibers.
1.
Characteristics of Toray "HFUG series" Membrane Modules
(1)
High Filtration Flux
HFUG series provides high filtration flux and stable operation for the filtration
of various raw water sources. The membrane is made with a special
spinning method, which enables high permeability and high fouling
resistance.
(2)
Excellent Water Quality
HFUG series provides very good water quality for the filtrate, extremely low
turbidity since the membrane has 0.01 micron nominal pore size. HFUG
series is recommended to be applied to the tertiary treatment of sewage
water and RO pretreatment in seawater desalination.
