municipal tap water automatic-cleaning UV Disinfection
Introduction
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.
No known toxic by-products;
No residual odour in final water system
Rapid disinfection (seconds, rather than minutes)
No hazardous material storage
Minimal space for equipment and treatment chamber
Removes some organic contaminants
Little of no environmental impact, except for disposal of obsolete equipment. Mercury is recycled
Ultraviolet disinfection de-activates most common pathogens such as Cryptosporidium or Giardia and some bacterial pathogens. The technology uses ultraviolet light from a mercury arc lamp to destroy an organism's genetic material (DNA, RNA) and prevent reproduction. Basically, the wastewater is directed through a sealed chamber that exposes it to ultraviolet rays. The characteristics of water that may reduce the effectiveness of ultraviolet treatment are: water hardness, pH, total suspended solids, turbidity, humic materials and iron. So it is important to investigate whether the technology can be applied to your wastewater, and whether pre-treatment is required.
How Does UV Sterilisation Work?
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.
What Contaminants Do UV Sterilizers Remove?
There are no micro-organisms known to be resistant to UV, unlike chlorination. UV is known to be highly effective against bacteria, viruses, algae, molds and yeasts, and disease causing oocysts like cryptosporidium and giardia. In practice, bacteria and viruses are the cause of most major waterborne pathogenic diseases. Of these enteric viruses, hepatitis virus and Legionella pneumophila have been shown to survive for considerable periods in the presence of chlorine, but are readily eliminated by UV treatment. For most microorganisms, the removal efficiency of UV for microbiological contaminants such as bacteria and virus generally exceeds 99.99%.
CONVENTIONAL METHODS OF WATER TREATING |
|
CHLORINE |
OZONE |
ULTRA VIOLET |
Capital cost |
Lowest |
High |
Low |
Ease of installation |
Good |
Poor |
Excellent |
Ease of Maintenance |
Good |
Poor |
Excellent |
Cost of Maintenance |
Medium |
High |
Lowest |
Operating Cost |
Low |
High |
Low |
Frequency Of Maintenance |
Frequent |
Continuous |
V. Infrequent |
Control System |
Poor |
Good |
Excellent |
Virucidal Effect |
Good |
Poor |
Good |
Toxic Chemical |
Yes |
Yes |
No |
Residual Effect Problem with |
Yes |
Yes |
No |
Hazards |
High |
Yes |
Low to none |
Contact Time |
30 - 60 minutes |
High |
1 - 5seconds |
Disinfection Performance |
Leaves some pathogens |
Kills all microbes |
Kills all microbes |
Effect on Water |
Organochlorine compounds, Taste & pH changes |
Unknown |
None |
The Ultra violet dose required for destruction is about the same for each virus, while higher dose of chlorine & ozone needed. |
Technical parameters:
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
|
Applications:
ULTRAVIOLET WATER PURIFICATION APPLICATIONS
Farms and Ranches: Bacteria free animal drinking water increases production by eliminating losses due to water-borne infection. Improved sanitation promotes healthier stock and higher yields
Water Wells: Eliminates bacteria which may build up from time to time from seepage of surface water or sewage
Bottling Manufacture: Insures bacteria free water for use in product at breweries, wineries, soft drink and water bottling facilities
Pharmaceutical and Cosmetic Industries: Bacteria free water insures compliance with strict water treatment standards necessary for product quality control
Laboratories: Provides ultra-pure water required for accurate testing and research
Hospitals: Insures ultra-pure water for pathology labs, kidney dialysis and post disinfection rinses where bacteria free water is essential
Electronics Industry: Insures bacteria free water for use in conjunction with de-ionized and high purity water systems
Food Industries: Insures bacteria free water as an additive to product and also as a rinse before packaging to guard against water-borne bacteria spoilage in vegetables, fruits, meats, fish and other products
Private Homes, Trailer Parks, Recreation Vehicles, Schools, Hotels, Airplanes: Provide safe, germ-free drinking water. Destroying bacteria, a serious problem for rural water supplies and stored water usage, prevents disease
Aquariums and Hatcheries: Bacteria free water prevents disease organisms from growing or spreading without producing by-products toxic to marine life
Wastewater Treatment Plants: Affords an excellent post water treatment of secondary effluent to reduce bacterial
concentrations to safe levels without introducing a toxicant to fish and other marine life in the receiving waters
Nurseries: Bacteria free water minimizes losses from widespread root rot infection, a common problem in trees and plants caused by a diseased water supply
Swimming Pools: Helps control bacteria, algae and slime formation. Ultraviolet water purification allows the user to substantially reduce the chlorine usage
FAQ:
Is UV 100% effective?
UV disinfection typically offers a 99.99% reduction in both bacteria and virus and is more effective than chemical disinfection processes at destroying viruses.
Does UV remove E. coli?
Yes, E. coli requires a UV dose of between 6 to 12 mJ/cm2 to achieve 4-log disinfection. This is well within the capabilities of the Sterilight UV system.
How much does it cost to operate? UV systems are extremely economical to operate.
A typical household UV system operates on the same power requirements as a 40 watt light bulb!
Will UV change the taste or smell of my water?
UV is a physical disinfection process, no additives are required. It does not change the taste or odour of the water. It simply provides safe reliable disinfection.
How do I know the system is working?
All UV systems come with "lamp-out" monitors which give an audible and visual signal in case of lamp failure. Sterilight GOLD systems incorporate true UV intensity monitors so an alarm will sound if the disinfection effectiveness falls below a safe level.
Why do I need Disinfection?
Disinfection is required on all water supplies that are not protected by a municipal water source. Due to the uncertainties that exist within some water systems, we can no longer rely on the fact that our water supplies "may be safe." By providing your own disinfection, you are taking the responsibility of ensuring the safety of the water supply for you and your family.