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GLOBAL ENFILTEC CO., LTD.<br />
Head Office & Factory :<br />
118-6 Dongo-ri Hyangnamm-eup Hwasung-si Gyeunggi-do South Korea<br />
TEL 82-31-354-1791<br />
FAX 82-31-354-1943<br />
http : //www.enfiltec.com<br />
E-mail : info@enfiltec.com, enfiltec@yahoo.co.kr
GE-10-10<br />
Perfect Backwashable Micro Filter<br />
<strong>VPMF</strong><br />
GLOBAL ENFILTEC CO., LTD.
<strong>VPMF</strong><br />
The technology concerning water treatment by means of filter<br />
Even though there are various technologies used for separating the contaminant from polluted water, one of<br />
the simplest methods is the filtering treatment. The filtering treatment has been defined as one of the best<br />
separation technologies. It prevents second contamination and has not been converted into other chemical<br />
characteristics.<br />
Most of the previous utilized filtration technologies were the conventional and traditional sand filter, spunbonded<br />
or melt-blown cartridge filter, highly polymerized compound, ceramic and membrane filter and metal<br />
filter. Those products have been made of the various kinds of raw materials and the respective pore size<br />
concerning the practical usage ranges available from several tens of micron to ion size. They are already<br />
available in the practical market.<br />
Although those technologies were capable of filtering well, they were unable to be utilized at the wider<br />
applicable ranges in the industrial field. Such utilization has been limited to the purification plants and some<br />
other very simple treatments only. The reason for the limited capabilities was the result of very poor<br />
performance in backwashing.<br />
The reason why the conventional filtering systems has such a poor backwashing performance was due to the<br />
fixed pore structure. Because it was very difficult to be re-penetrated into the fouled pore structure.<br />
Accordingly, it has been recognized that the variable pore structured micro filter should be developed so as to<br />
improve the efficiency of backwashing.<br />
As shown on figure I, the commercialized filters are being divided into the pore structure and the surface<br />
structure. Most of conventional and traditional variable pore structure type filters have been very limited to the<br />
size that is bigger than 20-micron. This size has been very inefficiency low filtering process. Therefore, our<br />
environmental technology R&D team has developed a new product, the <strong>VPMF</strong>, with a variable pore structure<br />
which took over 10 years. At the moment, the <strong>VPMF</strong> products are being operated and maintained in good<br />
conditions at almost 50 plants in the various industrial fields in Korea.
Perfect Backwashable Micro Filter<br />
GLOBAL ENFILTEC <strong>VPMF</strong> CATALOGUE<br />
Water Treatment by Filter<br />
< Figure >
What is the <strong>VPMF</strong>?<br />
Variable Pore-structure Micro Filter<br />
Raw<br />
Water<br />
Concentrated<br />
Water<br />
Air<br />
Filtering Process<br />
Effluent<br />
The inflow of raw water through its inlet gradually<br />
compresses the cylindrical filter. If the filter pressure reaches<br />
critical (or optimum) depth, the filter pressure will not occur.<br />
Through the pressure filter layer, the raw water will be<br />
filtered for discharging the water into an effluent inlet.<br />
Back<br />
Wash Water<br />
Backwashing<br />
If the backwashed water and air are poured through the<br />
effluent inlet, the compressed filter will be gradually expanded<br />
in an upward direction. Thereafter, the pore structure divides<br />
into pieces and the fine air bubble separates the pollutants<br />
between the filters to discharge it into the raw water inlet. At<br />
this time, the cylindrical filter slightly vibrates itself resulting in<br />
the synergism of washing and conducts full backwashing.<br />
Operating Condition<br />
No. Item Description<br />
1 Operation Pressure 1.5~2.5f/<br />
2 Operation Temperature 60<br />
3 Filtering Control Digital Flowmeter or Timer<br />
Materials<br />
No. Item Description<br />
1 Housing STS 304<br />
2 Lower Flange STS 304<br />
4 Backwashing Method Water & Air<br />
5 Backwashing Time<br />
3 to 5minutes,<br />
Depending upon the concentration of raw water<br />
6 Air Consumption 170LPM/MODULE, 1.5f/<br />
7 Backwash Water Consumption 15LPM/MODULE, 1.5f/<br />
3 Filter Fiber PE, PP, Nylon<br />
4 Filter Holder PVC, Acetal<br />
5 Permeate, Pipe STS 304
Perfect Backwashable Micro Filter<br />
GLOBAL ENFILTEC <strong>VPMF</strong> CATALOGUE<br />
The <strong>VPMF</strong> system is defined as follows :<br />
By means of the inflow of raw water, the micro<br />
fiber has been compressed gradually. Therefore,<br />
it affects the pressurized filter layer very<br />
significantly. In conclusion, the raw water will<br />
be filtered for discharging the water into an<br />
effluent one.<br />
By means of the back washing water as well as<br />
compressed air, the backwashing will be<br />
implemented by dividing the pore structure into<br />
pieces and the fine air bubble simultaneously. It<br />
will separate the pollutants between the filters<br />
to discharge it into the raw water. Accordingly,<br />
the cylindrical filter slightly vibrates itself<br />
resulting in synergism of washing. Therefore, it<br />
implements perfect backwashing performance.<br />
Raw Water<br />
Tank<br />
Air<br />
Backwashing<br />
Water Tank<br />
F.Pump<br />
B.Pump<br />
P/G<br />
P/G<br />
Flow Chart<br />
<strong>VPMF</strong><br />
F/M<br />
Backwashing<br />
<br />
Concentrated<br />
Water<br />
Filtered Water<br />
<strong>VPMF</strong> Models & Applications<br />
Applicable Fields<br />
Model Pore<br />
name Size<br />
Note: The flux as shown below is based on clean water as well as just at 2kgf per square cm of pressure.<br />
Flux<br />
Applicable Fields<br />
Dimension<br />
<br />
<strong>VPMF</strong>-LQ 25 3.5 /hr Removal of chlorophyceae in lakes and fish farms.<br />
Cooling water recycling.<br />
Replacement of cartridge and sand filters.<br />
Removal of suspended solids wastewater.<br />
<strong>VPMF</strong>-MQ 5 2.5/hr Removal of SS and BOD in effluent of sewage purification plant.<br />
Recycling the removal of SS in sewage treatment plant.<br />
Pre-treatment of membrane filter. (R/O, NF)<br />
<br />
Replacement of sand filter in water treatment plant.<br />
Purification treatment in swimming pool.<br />
<strong>VPMF</strong>-HQ 1 1.5/hr Pre-treatment of high level treatment.<br />
(i. e. activated carbon, ion exchange resin, ozone, and U.V, etc.)<br />
Pre-treatment of membrane filter. (R/O, N/F)<br />
Pre-treated of membrane filters. (R/O, NF)<br />
<strong>VPMF</strong>-SQ 0.5 0.65/hr Filtering of the industrial water and recycling of the industrial wastewater.<br />
Sewage and gray water treatment by direct filtering.<br />
<strong>VPMF</strong>-UQ 0.2 0.35/hr<br />
Recycling of sewage effluent.<br />
Small size of portable water purification pre-treatment facility.
The Range of Applications<br />
In case of polluted sewage, it can be treated and then diverted into the artificial pond, which can be the environmental<br />
friendly made parks and also used for irrigation and factories, based on recycling concept. For industrial waste water, it can<br />
be sufficiently recycled and reused for production lines without any effluent of useless waste water by means of preliminary<br />
and secondary purification process.<br />
Substitution of<br />
clarifier and<br />
sand filter<br />
River<br />
(Lake)<br />
Grit Chamber<br />
(Reservation tank)<br />
<strong>VPMF</strong> System<br />
Treated Water<br />
basin<br />
Industrial<br />
Water<br />
Chemical reaction tank<br />
Sedimentation tank<br />
<strong>VPMF</strong> System A/C Filter(Optional)<br />
Recycling of<br />
waste water<br />
Recycling<br />
Flux adjusting<br />
tank<br />
Activated tank<br />
Sedimentation<br />
tank<br />
Effluent tank<br />
Recycling tank<br />
Advanced<br />
treatment of<br />
sewage<br />
Aeration tank Sedimentation tank Effluent tank<br />
<strong>VPMF</strong> System<br />
Effluent<br />
Pretreatment of<br />
R/O system<br />
for industrial<br />
waste water<br />
Industrial waste<br />
water tank<br />
<strong>VPMF</strong> System<br />
R/O System<br />
Treated water<br />
Production<br />
process line<br />
Recycling of<br />
cooling water<br />
Cooling tower <strong>VPMF</strong> System Treated water tank<br />
Production<br />
process line
Perfect Backwashable Micro Filter<br />
GLOBAL ENFILTEC <strong>VPMF</strong> CATALOGUE<br />
Feasibility of recycling usage for irrigation and<br />
industrial process water<br />
Removal of chlorophyceae by removing<br />
SS, BOD,T-N and T-P simultaneously<br />
Less space required and lower maintenance fee<br />
Effect of protection of drinking water sources<br />
against pollution<br />
Restoring as environmental friendly parks<br />
with artificial rivers for citizens<br />
Recycling of industrial waste water<br />
Easy substitution with existing facility<br />
Less space and lower maintenance fee required<br />
No effluent of waste water due to recycling<br />
Reputation of company as environmental friendly<br />
Maintaining less than 10 ppm, 5ppm of both<br />
BOD and SS<br />
Easy substitution with existing facility<br />
Continuous improvement of water quality without<br />
interrupting operation of existing facility<br />
Less space and lower maintenance fee required<br />
Fully automated operation by means of PLC system<br />
The Range of Applications<br />
Substitution of existing sand and micro filter<br />
Prolongation of life lime of R/O and ion exchange<br />
Perfect backwashable performance<br />
Longer life time of filter<br />
Modular design making easy extension<br />
Prolongation of life time of machinery due to<br />
removed of suspended solids<br />
Lower production cost owing to the most optimum<br />
recycling system<br />
Less space required<br />
Less concentrated water required due to quite<br />
short backwashing time<br />
Fully automatic operation by means of PLC system