Global VPMF

GLOBAL ENFILTEC CO., LTD.
Head Office & Factory :
118-6 Dongo-ri Hyangnamm-eup Hwasung-si Gyeunggi-do South Korea
TEL 82-31-354-1791
FAX 82-31-354-1943
http : //www.enfiltec.com
E-mail : info@enfiltec.com, enfiltec@yahoo.co.kr

GE-10-10
Perfect Backwashable Micro Filter
VPMF
GLOBAL ENFILTEC CO., LTD.

VPMF
The technology concerning water treatment by means of filter
Even though there are various technologies used for separating the contaminant from polluted water, one of
the simplest methods is the filtering treatment. The filtering treatment has been defined as one of the best
separation technologies. It prevents second contamination and has not been converted into other chemical
characteristics.
Most of the previous utilized filtration technologies were the conventional and traditional sand filter, spunbonded
or melt-blown cartridge filter, highly polymerized compound, ceramic and membrane filter and metal
filter. Those products have been made of the various kinds of raw materials and the respective pore size
concerning the practical usage ranges available from several tens of micron to ion size. They are already
available in the practical market.
Although those technologies were capable of filtering well, they were unable to be utilized at the wider
applicable ranges in the industrial field. Such utilization has been limited to the purification plants and some
other very simple treatments only. The reason for the limited capabilities was the result of very poor
performance in backwashing.
The reason why the conventional filtering systems has such a poor backwashing performance was due to the
fixed pore structure. Because it was very difficult to be re-penetrated into the fouled pore structure.
Accordingly, it has been recognized that the variable pore structured micro filter should be developed so as to
improve the efficiency of backwashing.
As shown on figure I, the commercialized filters are being divided into the pore structure and the surface
structure. Most of conventional and traditional variable pore structure type filters have been very limited to the
size that is bigger than 20-micron. This size has been very inefficiency low filtering process. Therefore, our
environmental technology R&D team has developed a new product, the VPMF, with a variable pore structure
which took over 10 years. At the moment, the VPMF products are being operated and maintained in good
conditions at almost 50 plants in the various industrial fields in Korea.

Perfect Backwashable Micro Filter
GLOBAL ENFILTEC VPMF CATALOGUE
Water Treatment by Filter
< Figure >

What is the VPMF?
Variable Pore-structure Micro Filter
Raw
Water
Concentrated
Water
Air
Filtering Process
Effluent
The inflow of raw water through its inlet gradually
compresses the cylindrical filter. If the filter pressure reaches
critical (or optimum) depth, the filter pressure will not occur.
Through the pressure filter layer, the raw water will be
filtered for discharging the water into an effluent inlet.
Back
Wash Water
Backwashing
If the backwashed water and air are poured through the
effluent inlet, the compressed filter will be gradually expanded
in an upward direction. Thereafter, the pore structure divides
into pieces and the fine air bubble separates the pollutants
between the filters to discharge it into the raw water inlet. At
this time, the cylindrical filter slightly vibrates itself resulting in
the synergism of washing and conducts full backwashing.
Operating Condition
No. Item Description
1 Operation Pressure 1.5~2.5f/
2 Operation Temperature 60
3 Filtering Control Digital Flowmeter or Timer
Materials
No. Item Description
1 Housing STS 304
2 Lower Flange STS 304
4 Backwashing Method Water & Air
5 Backwashing Time
3 to 5minutes,
Depending upon the concentration of raw water
6 Air Consumption 170LPM/MODULE, 1.5f/
7 Backwash Water Consumption 15LPM/MODULE, 1.5f/
3 Filter Fiber PE, PP, Nylon
4 Filter Holder PVC, Acetal
5 Permeate, Pipe STS 304

Perfect Backwashable Micro Filter
GLOBAL ENFILTEC VPMF CATALOGUE
The VPMF system is defined as follows :
By means of the inflow of raw water, the micro
fiber has been compressed gradually. Therefore,
it affects the pressurized filter layer very
significantly. In conclusion, the raw water will
be filtered for discharging the water into an
effluent one.
By means of the back washing water as well as
compressed air, the backwashing will be
implemented by dividing the pore structure into
pieces and the fine air bubble simultaneously. It
will separate the pollutants between the filters
to discharge it into the raw water. Accordingly,
the cylindrical filter slightly vibrates itself
resulting in synergism of washing. Therefore, it
implements perfect backwashing performance.
Raw Water
Tank
Air
Backwashing
Water Tank
F.Pump
B.Pump
P/G
P/G
Flow Chart
VPMF
F/M
Backwashing
Concentrated
Water
Filtered Water
VPMF Models & Applications
Applicable Fields
Model Pore
name Size
Note: The flux as shown below is based on clean water as well as just at 2kgf per square cm of pressure.
Flux
Applicable Fields
Dimension
VPMF-LQ 25 3.5 /hr Removal of chlorophyceae in lakes and fish farms.
Cooling water recycling.
Replacement of cartridge and sand filters.
Removal of suspended solids wastewater.
VPMF-MQ 5 2.5/hr Removal of SS and BOD in effluent of sewage purification plant.
Recycling the removal of SS in sewage treatment plant.
Pre-treatment of membrane filter. (R/O, NF)
Replacement of sand filter in water treatment plant.
Purification treatment in swimming pool.
VPMF-HQ 1 1.5/hr Pre-treatment of high level treatment.
(i. e. activated carbon, ion exchange resin, ozone, and U.V, etc.)
Pre-treatment of membrane filter. (R/O, N/F)
Pre-treated of membrane filters. (R/O, NF)
VPMF-SQ 0.5 0.65/hr Filtering of the industrial water and recycling of the industrial wastewater.
Sewage and gray water treatment by direct filtering.
VPMF-UQ 0.2 0.35/hr
Recycling of sewage effluent.
Small size of portable water purification pre-treatment facility.

The Range of Applications
In case of polluted sewage, it can be treated and then diverted into the artificial pond, which can be the environmental
friendly made parks and also used for irrigation and factories, based on recycling concept. For industrial waste water, it can
be sufficiently recycled and reused for production lines without any effluent of useless waste water by means of preliminary
and secondary purification process.
Substitution of
clarifier and
sand filter
River
(Lake)
Grit Chamber
(Reservation tank)
VPMF System
Treated Water
basin
Industrial
Water
Chemical reaction tank
Sedimentation tank
VPMF System A/C Filter(Optional)
Recycling of
waste water
Recycling
Flux adjusting
tank
Activated tank
Sedimentation
tank
Effluent tank
Recycling tank
Advanced
treatment of
sewage
Aeration tank Sedimentation tank Effluent tank
VPMF System
Effluent
Pretreatment of
R/O system
for industrial
waste water
Industrial waste
water tank
VPMF System
R/O System
Treated water
Production
process line
Recycling of
cooling water
Cooling tower VPMF System Treated water tank
Production
process line

Perfect Backwashable Micro Filter
GLOBAL ENFILTEC VPMF CATALOGUE
Feasibility of recycling usage for irrigation and
industrial process water
Removal of chlorophyceae by removing
SS, BOD,T-N and T-P simultaneously
Less space required and lower maintenance fee
Effect of protection of drinking water sources
against pollution
Restoring as environmental friendly parks
with artificial rivers for citizens
Recycling of industrial waste water
Easy substitution with existing facility
Less space and lower maintenance fee required
No effluent of waste water due to recycling
Reputation of company as environmental friendly
Maintaining less than 10 ppm, 5ppm of both
BOD and SS
Easy substitution with existing facility
Continuous improvement of water quality without
interrupting operation of existing facility
Less space and lower maintenance fee required
Fully automated operation by means of PLC system
The Range of Applications
Substitution of existing sand and micro filter
Prolongation of life lime of R/O and ion exchange
Perfect backwashable performance
Longer life time of filter
Modular design making easy extension
Prolongation of life time of machinery due to
removed of suspended solids
Lower production cost owing to the most optimum
recycling system
Less space required
Less concentrated water required due to quite
short backwashing time
Fully automatic operation by means of PLC system