UV Sterilizers
How UV Water Purifiers work
Ultraviolet (UV) light is invisible and is emitted by different light sources, including the sun. At certain intensities, UV light emits enough radiation to kill the DNA in bacteria and other microorganisms. An ultraviolet water purification system typically consists of a UV light source with an output of around 254 nanometers which produces radiation of a significantly greater intensity than the radiation produced by sunlight.
The UV light source is mounted in front of a flow chamber through which water passes. The water is exposed to the UV light source as it passes through the chamber. Any harmful microbes and bacteria that are present in the water are rendered sterile by the exposure to the germicidal radiation.
UV radiation is so effective that it can eliminate up to 99.99% of bacteria and viruses, including those associated with water-borne illnesses such as Typhoid, Gastroenteritis, Hepatitis, Flu and Cholera. UV water purification can be used to treat water whether it's from a municipal water supply, a drinking-water well, lake or a spring.
Application
1.Food processing industry, including juices, milk, drinks, beer, practical oil and canned food.
2.Electronic industry.
3.Hospitals, various laboratory and high levels of pathogenic body water disinfection.
4.Households building, residential, office buildings, hotels, restaurants, water factories.
5.Purification and disinfection of shellfish, fish cleaning and disinfection
6.Military camp, field water supply system
7.Urban wastewater disinfection.
8.Swimming pool, other recreational water disinfection
9.Thermal power, nuclear power plant industrial, central air conditioning system cooling water.
10.Biological, chemical and pharmaceutical, cosmetics for the production of cooling water.
11.Sea water, fresh water breeding, aquaculture water
12.Agricultural water disinfection
UV specification
Product application
Ultraviolet light treatment is a widely recognized and proven method of disinfection of water and has several advantage over other disinfection methods such as chlorination, ozonation, etc.UV light does not add anything to the water ,such as ,undesirable color ,odor , taste , or flavor ,nor does it generate harmful byproducts. It adds only energy in the UV radiation. Also, UV disinfection requires only a fraction of the contact times required by other disinfection methods. It is fast, efficient, effective, economical and environmentally-friendly.
Principle of Operation
UV water disinfection system design has been carefully conceived to provide adequate germicidal dosage throughout the disinfection chamber. The dosage, as it applies to UV disinfection, is a function of time and the intensity of UV radiation to which the water is exposed. Exposure time is related to the flow rate, the higher the flow rate, the lower the exposure time or the lower the flow rate, the higher the exposure time. The UV intensity is the amount of energy, per unit time, emitted by germicidal lamp. The Dosage is the product of UV intensity and the exposure time.
Limitation of Use
The UV water disinfection system NOT intended for the treatment of water that has an obvious contamination or intentional source, such as raw sewage, nor is the unit intended to convert wastewater to microbiologically safe drinking water.
Water Quality (in)
Water quality plays a major role in the transmission of germicidal UV rays. It is recommended that the water does not exceed following maximum concentration levels
Effectively treating water with higher concentration levels than listed above can be accomplished, but may require added measures to improve water quality to treatable levels. If, for any reason, it is believed the UV transmission is not satisfactory, contact the factory.
UV wavelength (nm)
DOSAGE is the product of intensity & time
dosage=intensity*time=micro watt/cm2*time=microwatt-seconds per square centimeter
(μW-s/cm2)
Note:1000μW-s/cm2=1mj/cm2(milli-joule/cm2)
| model |
capacity |
Power |
inlet-outlet |
reactor |
panel |
Anchor |
G weight |
| m³/hour |
watt |
mm |
L×W×H |
cm |
screw |
Kg |
| YLCn-005 |
0.3 |
16 |
1/2″ |
30×6×11 |
without |
without |
5 |
| YLCn-008 |
1 |
25 |
1/2″ |
47×6.3×11 |
without |
without |
10 |
| YLCn-050 |
2 |
40 |
1″ |
100×9×20 |
Φ8.9×25
(d×L) |
69×4×Φ1 |
25 |
| YLCn-150 |
6 |
80 |
1+1/4″ |
100×11×23 |
69×4×Φ1 |
30 |
| YLCn-200 |
8 |
120 |
1+1/2″ |
100×15.9×30 |
Φ8.9×45
(d×L) |
69×7×Φ1 |
35 |
| YLCn-300 |
12 |
160 |
2″ |
100×15.9×32 |
69×7×Φ1 |
40 |
| YLC-050 |
2 |
40 |
DN25/1″ |
100×8.9×30 |
25×30×12
(W×H×D) |
60×4×Φ1 |
45 |
| YLC-150 |
6 |
80 |
DN32/11/4″ |
100×10.8×30 |
60×4×Φ1 |
50 |
| YLC-200 |
8 |
120 |
DN40/11/2″ |
100×15.9×40 |
60×7×Φ1 |
60 |
| YLC-300 |
12 |
160 |
DN50/2″ |
100×15.9×40 |
60×7×Φ1 |
70 |
| YLC-360 |
15 |
200 |
DN65/21/2″ |
100×15.9×40 |
60×7×Φ1 |
120 |
| YLC-500 |
20 |
240 |
DN65/21/2″ |
100×21.9×50 |
60×11×Φ1.2 |
130 |
| YLC-600 |
25 |
280 |
DN80/3″ |
100×21.9×50 |
60×11×Φ1.2 |
140 |
| YLC-700 |
30 |
320 |
DN100/4″ |
100×21.9×50 |
60×11×Φ1.2 |
150 |
| YLC-1000 |
40 |
360 |
DN100/4″ |
100×21.9×50 |
60×11×Φ1.2 |
160 |
| YLC-1200 |
50 |
400 |
DN125/5″ |
100×21.9×50 |
60×11×Φ1.2 |
180 |
| YLC-1500 |
60 |
420 |
DN150/6″ |
170×27.3×57 |
120×16×Φ1.4 |
210 |
| YLC-2000 |
80 |
560 |
DN150/6″ |
170×27.3×57 |
120×16×Φ1.4 |
220 |
| YLC-2500 |
100 |
700 |
DN150/6″ |
170×27.3×57 |
60×128×30
(W×H×D) |
120×16×Φ1.4 |
275 |
| YLC-3000 |
125 |
840 |
DN150/6″ |
170×27.3×57 |
120×16×Φ1.4 |
300 |
| YLC-4000 |
150 |
1120 |
DN200/8″ |
173×32.5×65 |
120×20×Φ1.6 |
325 |
| YLC-5000 |
200 |
1400 |
DN200/8″ |
173×37.7×72 |
120×22×Φ1.6 |
350 |
| YLC-7000 |
300 |
2100 |
DN250/10″ |
175×42.6×80 |
120×24×Φ2.0 |
400 |
| YLC-10K |
400 |
2520 |
DN250/10″ |
176×52.9×95 |
60×150×40
(W×H×D) |
120×22×Φ2.2 |
475 |
| YLC-15K |
600 |
3080 |
DN300/12″ |
176×78×110 |
120×32×Φ2.4 |
600 |
| YLC-20K |
800 |
3920 |
DN350/14″ |
Designated |
Designated |
Designated |
Designated |
| YLC-25K |
1000 |
4760 |
DN350/14″ |
Designated |
Designated |
Designated |
Designated |
Drawbacks of UV water sterilizers<o:p>
The systems have a few disadvantages as well. UV water purifiers require electric power to run. While this is not a problem in developed countries, it can pose a challenge in developing nations, where electricity may not always be readily available, especially in rural areas. UV water purifiers also only work when the water is clear. The systems are not very effective when the water contains a lot of sediment or is muddy. In such situations, the water will need to be filtered first by other filtration systems, before it can be passed through a UV radiation process.<o:p>
Significantly, UV rays are invisible to the naked eye. So it becomes very hard to determine if the UV system is still working, or when a lamp might need to be replaced. This can easily result in situations where a malfunctioning or ineffective UV system continues to be used for extended periods of time. This is one of the reasons why experts recommend replacing the lamp in a UV water purification system once every year. Beyond that period, the light produced by the lamp may not be of enough intensity to effectively destroy water-borne microbes. <o:p>
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