High Quality
Safe
Reliable
Ultrafiltration Modules
Uf technology
Ultra-filtration
(UF) is a kind of membrane filtration. Process principle of UF can be described
as that hydrostatic pressure forces a liquid against a semi-permeable membrane.
Suspended solids and solutes of high molecular weight are retained, while water
and low molecular weight solutes pass through the membrane. Particles,
colloids, dissolved molecules and biological contaminants from fluids under a
feed pressure are separated by UF process. On the other hand, nano-filtration
(NF) and reverse osmosis (RO) systems have been used to purify tap water to
distilled water quality in which salts and small molecules are separated from
low molecular weight solutes. Among these methods, UF is the most frequently
used for waste-water treatment owing to the fact that it can be controlled and
maintained easily and cost of it is relatively lower than NF and RO systems.
UF membranes
removes particles colloids, proteins, macro-molecules, bacteria and viruses
from a feed solution. Schematic illustration of membrane filtration spectrum is
shown in Figure 1. The molecular weight cut-off (MWCO) value is a minimum
molecular weight of a solute to obtain a rejection of 90% in a membrane
separation process. MWCO is expressed by Daltons (Da) and determined by
molecular weights of materials with different molecular weights e.g. albumin
and dextrans.
The advantages
of UF membrane processes compared with conventional water treatment techniques
can be listed as:
· No need
for chemicals (coagulants, flocculants, disinfectants, pH adjustment)
· Since the
basic principal of hollow fibers is filtration, it does not have possibility to
create any waste during operation except the undesired component in the feed
stream
· Provides
cost reduction in waste management · Low energy consumption
· Good and
constant quality of the treated water in terms of particle and microbial
removal
· Process
and plant compactness

- Chemical Resistance
PVDF based hollow fiber membranes have long lifetime due to their high mechanical strength and chemical resistance.
- Enhanced UF Module
- Safe
Virus and particules seperated by membrane are smaller than 30 nm.
- Inevitable
The product water quality is <0.2 NTU.
PVDF Hollow Fibre
The e-pore Ultrafiltration which are formed of PVDF hollow fiber membranes with high mechanical characteristics provides the following features
- High mechanical strength, chemical resistance and thermal stability (up to 75 °C)
- Improved hydrophilicity for easy cleaning and fouling resistance during the filtration process.
- Asymmetric, dense, macro-void-free, sponge-like morphology with controlled pore size and distribution that results in high strength
- Both outside in and dead-end operation mode with an operation pH of 2-11 and operating temperature of 5-40°C
- High separation performance and high water flux (MWCO ≤150.000 Da, Flux: 45 - 180 LMH)

Cross-sectional image of the PVDF based hollow fiber membrane
Waste Water

Surface Water

Seawater

Underground Water

Pre-Filtration Before Reverse Osmosis

Preparation of Process Water and Drinking Water
