ULTRAVIOLET STERILIZER
High-quality Materials for Long Lasting
NanoWater manufactures Ultraviolet units with the finest 316 Stainless Steel, Electro polished internally as well as externally for years of corrosion free service. The system allows water to come in contact with Ultra Violet rays having 30,000 micro watts second/cm2 UV dosage & 2537 Angstrom (254 nm) units wavelength. The silica quartz jacket provides 100% efficiency due to its pure crystal-clear transparency as compared to the Teflon tubes which has only 25% transparency.
NanoWater offers a complete range of Ultra Violet Units, for drinking and process water applications with outputs ranging from 100 LPH up to 1,00,000 LPH
HOW DOES UV STERILIZER WORKS ?
Ultraviolet light deactivates the DNA of bacteria, viruses and other pathogens and destroys their ability to multiply and cause disease. Specifically, UV light causes damage to the nucleic acid of microorganisms by forming covalent bonds between certain adjacent bases in the DNA. The formation of such bonds prevents the DNA to reproduce.
Ultraviolet or UV energy is found in the electromagnetic spectrum between visible light and x-rays and can best be described as invisible radiation. In order to kill microorganisms, the UV rays must actually strike the cell. UV energy penetrates the outer cell membrane, passes through the cell body and disrupts its DNA preventing reproduction. UV treatment does not alter water chemically; nothing is being added except energy.
Special low-pressure mercury vapor lamps produce ultraviolet radiation at 254 nm, the optimal wavelength for disinfection and ozone destruction. The UV lamp never contacts the water; it is either housed in a quartz glass sleeve inside the water chamber or mounted external to the water which flows through UV transparent Teflon tubes. Some ultrapure water systems use 185 nm UV units for reducing TOC (total organic carbon).
FEED WATER QUALITY
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.
FOR CLEAR, FRESH WATER APPLICATIONS
- Turbidity: 5 Nephelometric turbidity units (N.T.U.)
- Total Suspended Solids: 10 milligrams per liter (mg/L) – maximum
- pH: 6.5 – 9.5
- Color: None
- Hardness: 6 grains per gallon (gpg) or 102 parts per million (ppm)
- Iron: 0.3 milligrams per liter (mg/L) – maximum
- Manganese: 0.05 milligrams per liter (mg/L) – maximum
- Ultraviolet Transmission: 80% through one centimeter – minimum
COMMERCIAL AND INDUSTRIAL ULTRAVIOLET STERILIZERS
APPLICATIONS FOR ULTRAVIOLET WATER PURIFICATION
o Laboratories
o Hospital
o Clinics
o Maternity areas
o Labor & delivery areas
o Pathology labs
o Kidney dialysis labs
o Nursing homes
o Universities
o Schools
o Veterinary clinics
o Cosmetic production
o Cooling tower
o Power generation
o Food industry
o Ice makers
o Pulp & paper production
o Water vending machines
o Laundry water
o Pure wash water
o Bottled water
o Beer, wine
o Soft drinks
o Fruit juices
o Bottling facilities
o Edible oils
o Liquid sugar
o Sweeteners
o Water based lubricants
o Dairy processing
o Cistern applications
o Resorts, hotels, & motels
o Ships, yachts, boats
o Campgrounds
o Restaurants
o Water parks
o Amusement parks
o Golf course water holes
o Lakes and ponds
o Fountain water features
o Ornamental ponds
o Fish ponds
o Swimming pool
o Apartment complexes
o Condominium complexes
o Trailer parks
o Rural water
o Villages, towns, cities
o Farms & ranches
o Animal husbandry
o Aquariums
o Fish farms
o Mollusk hatcheries
o Water preserves
o Well water
Industry systems…
o Pharmaceutical mfg.
o Electronic production
o TOC Reduction
o Ozone Reduction
MODULAR DESIGN
Each UV Unit is a completely self-contained disinfection system. The electrical enclosure and disinfection chamber form an independent unit simplifying installation; simply secure, plumb and supply suitable single-phase power. Multiple units can be interconnected to comply with nearly any flow requirement. All internal electronic modules can be removed and replaced, simplifying troubleshooting, and reducing any possible down time.
ELECTRONIC BALLASTS
State-of-the-art electronic ballasts developed specifically for the operation of ultraviolet lamps. These ballasts are smaller, lighter, and more efficient; operate cooler, provide higher ultraviolet lamp output with a reliable, long life
MANUAL WIPER SYSTEM
Permits mechanical cleaning of the quartz sleeves without service interruption, or disassembly of the system.
4-20mA signal
Provides an output corresponding to the ultraviolet intensity. Output must be displayed by a PLC, computer, or 4-20mA meter, which can interpret the signal.
QUARTZ SLEEVE
Fused, high quality quartz, protects and insulates the ultraviolet lamps to insure high output over a range of operating temperatures.
AUTOMATIC WIPER SYSTEM (Optional)
Once programmed, permits unattended mechanical cleaning of the quartz sleeves.
REMOTE OUTPUTS
12v DC: Provides an output corresponding to the ultraviolet intensity and power for a low-voltage audio alarm, 50mA max
SIGHT PORT
Translucent plug mounts to the disinfection chamber and provides positive indication of germicidal lamp operation
4-20mA signal
Provides an output corresponding to the ultraviolet intensity. Output must be displayed by a PLC, computer, or 4-20mA meter, which can interpret the signal.
DRY CONTACTS
Provides SPDT output corresponding to UV NORMAL or UV LOW status of the monitor. Contacts are monitor. Contacts are rated at 50v 100mAm.
ULTRAVIOLET STRELIZATION FOR WASTEWATER APPLICATIONS
NanoWater has designed a pre-engineered ChannelStream™ range of channel UV wastewater treatment systems for wastewater applications, the ChannelStream™ is specifically designed to treat secondary and tertiary wastewater for any flows based on modular design . It utilizes a new type of low pressure, high output (LPHO) amalgam lamp that offers a stable output over its entire operating life of up to 14,000 hours.
ULTRA VIOLET UNITS – ADVANTAGE
More effective against viruses than chlorine – Chlorine is becoming less acceptable because of harmful by products, handling problems, & risk of overdosing.
- Immediate treatment process, no need for holding tanks, & retention times, so footprint is small.
- Extremely economical due to low capital, operational & maintenance costs.
- No chemicals added to the water supply – resulting in no byproducts & no need for specialized storage requirements
- No change in taste, odor, pH, conductivity of water
- Automatic operation
- Simplicity and ease of maintenance, periodic cleaning, and annual lamp replacement, no moving parts to wear out
- Easy installation, only two water connections and a power connection
- Compatible with any water treatment processes.
SELF CLEANING SYSTEM
Automatic, long-life Viton wipers, powered by a self-contained air compressor, keep the quartz sleeves surrounding the UV lamps clean, ensuring optimum UV output at all times, and wiper frequency is easily adjustable. The system’s ballasts have a variable output between 50-100% and are easily accessible. In addition, the interface of the PLC control system can be customized by the user to suit their requirements. Lamp replacement and other routine maintenance is also straightforward and can usually be carried out by on-site staff.
MODULAR DESIGN
The ChannelStream™ flexible, modular design means simple installation and maintenance, making it the ideal open channel UV system for municipalities with low flow requirements. the ChannelStream™ is the first ‘plug-and-play’ open channel UV system available on the market. Installation is straightforward: the unit is simply placed on a flat surface, the inlet and outlet piping is connected, and it is ready to use. The totally self-contained unit negates the need to install lamp wires through conduits or connect chemical feed systems.
FEED WATER QUALITY
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.
APPLICATIONS FOR WASTEWATER
- Biological Oxygen Demand: 30 milligrams per liter (mg/L) – maximum
- Total Suspended Solids: 30 milligrams per liter (mg/L) – maximum
- Ultraviolet Transmission at 254 nanometers: 65% through one centimeter – minimum
IDENTIFY UV DOSE
UV dose is a measure of the germicidal energy delivered to microbes. UV dose is typically expressed in units of millijoules per square centimeter (mJ/cm2) or joules per square meter (J/m2). The UV dose delivered to the microorganisms depends on the flowrate of water through the reactor, the number and location of the lamps within the reactor, the UV output from each lamp, the UV transmittance of the water, and the trajectories of the microbes relative to the lamps. Because different microbes follow different trajectories as they pass through a UV reactor, the dose delivery by a UV reactor is best represented by a dose distribution. Biotech Typical design UV DOSE is 50 mJ/cm2
ATHOGENS | Common Name | Scientific Name | 3 Log Reduction |
Viruses | Rota | Rotaviruses (Human) | 32 mJ/cm2 |
Infectious Hepatitis | Hepatitis B | 25 mJ/cm2 | |
Adenovirus | 126 mJ/cm2 | ||
ECHO Virus | Echovirus | 25 mJ/cm2 | |
Bacteria | Salmonella | Salmonella Typhimurium | 22 mJ/cm2 |
Staph | Staphylococcus aureus | 3.2 mJ/cm2 (2 log) | |
Strep | Streptococcus faecalis | 9.8 mJ/cm2 |
UV STERILIZER UNIT SELECTION CHART
Type | Disinfection | Power W | water Inlet/Outlet | Outside size (Lx D X H ) mm | |
M3/h | GPM | ||||
BIO.V-C5. P40 | 5.5 | 24 | 2×40 | G1’ | 906x101x201 |
BIO.V-C8. P40 | 8 | 35 | 3×40 | DN40 | 906x159x359 |
BIO.V-C12.P40 | 12 | 53 | 4×40 | DN50 | 906x159x359 |
BIO.V-C15.P40 | 15 | 66 | 5×40 | DN65 | 906x219x420 |
BIO.V-C12.P80 | 12 | 53 | 2×80 | DN50 | 906x101x271 |
BIO.V-C20.P80 | 20 | 88 | 3×80 | DN65 | 906x159x359 |
BIO.V-C25.P80 | 25 | 110 | 4×80 | DN65 | 906x159x359 |
BIO.V-B15.P120 | 15 | 66 | 2×120 | DN65 | 1220x159x359 |
BIO.V-B25.P120 | 25 | 110 | 3×120 | DN80 | 1220x159x359 |
BIO.V-B45.P120 | 45 | 198 | 5×120 | DN80 | 1220x159x359 |
BIO.V-B35.P150 | 35 | 155 | 3×150 | DN80 | 1630x159x319 |
BIO.V-B50.P150 | 50 | 220 | 4×150 | DN100 | 1630x219x419 |
BIO.V-B60T.P150 | 60 | 260 | 5×150 | DN100 | 1630x219x419 |
BIO.V-B80.P150 | 80 | 352 | 6×150 | DN100 | 1630x219x419 |
BIO.V-B100.P150 | 100 | 440 | 7×150 | DN100 | 1630x219x419 |
BIO.V-B125.P150 | 125 | 550 | 9×150 | DN150 | 1630x273x473 |
BIO.V-B150.P150 | 150 | 660 | 11×150 | DN150 | 1630x325x525 |
EXTEND THE SHELF-LIFE OF THE PRODUCTS
Degradation of product quality, reduction of its lifespan, need to stop the production line for cleaning, use of chemicals, etc. The presence of biological contamination causes a number of problems, which is why disinfection surface area in the food industry is so important.
NanoWater designs and manufactures dedicated equipment to overcome the various issues outlined. These devices are especially suitable for surfaces disinfection in the food industry: treatment of products, their packaging as well as conveyor belts.
The UV disinfection process is safe and versatile, it allows a high destruction of bacteria and microorganisms that are usually found in the food industry.
The application of ultraviolet (UV) light in the food industry has held great promise for a long time. UVC light (200–280 nm) possesses excellent germicidal properties to inactivate a wide range of microbial pathogens (e.g., bacteria, fungi, yeasts, molds, and viruses).
UVC technology can be used to effectively prevent foodborne illnesses while increasing the shelf life of food without compromising its quality by reducing the microbial load.
UVC radiation processing of food depends on a variety of factors such as the operational parameters of the UVC equipment, microbial characteristics, and the composition of the food.
The fundamentals of using UVC radiation to inactivate pathogenic microbes for the decontamination of foods (e.g., fruit and vegetable juices, milk and dairy products, meat products, beef, and seafood).
NanoWater technology is based on pulsed UV light, which allows us make a considerable contribution to the issues related to food safety and food preservation. With our Pulse UV light equipment we generate intense UV light flashes for a fraction of a second on products which inactivate bacteria and spores. The flashes result in the release of an enormous amount of energy , for a fraction of a hundredth of a second, which breaks the skin protein,
causing the DNA of the undesired (decay) micro-organisms, pathogens, bacteria, yeasts, fungi and /or viruses to be broken down.
The techniques we use reduce or eliminate the need for chemical disinfectants as well as the addition of preservatives. As a result
- We extend shelf life and
- Improve the quality of the products.
- Listeria and Salmonella bacteria are reduced by 99.85%.
reduce the number of allergens that occur naturally in foods
PULSED UV LIGHT IS A FOOD PRESERVATION METHOD
The spectrum of light for pulsed light treatment includes wavelengths in the ultraviolet (UV) to the near-infrared region.
Any material to be treated is exposed to a least 1pulse of light having an energy density in the range of about 0.01 to 50 J/cm2 at the surface. A wavelength distribution such that at least 70% of the electromagnetic energy is within the range from 170 to 2600 nm is used.
The material to be sterilized is exposed to at least 1 pulse of light (typically 1 to 20 flashes per second) with a duration range from 1 µ,s to 0.1 s. For most applications, a few flashes applied in a fraction of a second provide a high level of microbial inactivation.
ADVANTAGES OF UV TECHNOLOGY IN THE FOOD INDUSTRY
- UVC Surface Disinfection system perfectly adaptable on an existing conveyor belt
- Option to design a customized UVC disinfection system that can fit to different sized of existing conveyor belt
- Superficial sterilization of surfaces including food (meat, fish, fruits and vegetables, baked goods …)
- The combined surface treatment of the product and its packaging can significantly reduce contamination by microorganisms resulting in a greater shelf life.
- All Biotech surface disinfection systems are equipped with a lamp protection to ensure no broken glass is in contact with food in case of lamp breakage.
- Significant reduction of use of chemicals for disinfection.
- Significant reduction of use of water.
- Automatic stop system included: this prevents overexposure when stopping the conveyor.
- An ultra-fast processing (a few seconds maximum) which allows not to change the production process.
Ultraviolet Processing of Mushrooms
Mushrooms exposed to UV light (UV-B or UV-C) produce vitamin D2. Mushrooms contain a compound called ergosterol that converts into vitamin D2 when exposed to UV light. This reaction occurs in all mushrooms, including white, brown, and portabella mushrooms. It occurs at slow rates when mushrooms are exposed to the sun, and the reaction time can be shortened drastically by exposing the mushrooms to high doses of high intensity UV light. In addition to converting ergosterol into vitamin D in mushrooms, UV light treatment can be used to improve the nutritional value of other plant products. Biotech has developed a UV pulse light system which can enrich the Vitamin D value to make the products more healthy and more valuable.
