UV Technologies

Swimming Pools

swimming pool uv disinfection

 UV Disinfection of Swimming Pool Water

UV disinfection is now a well-established method of chemical free indoor swimming pool water treatment, from hydrotherapy pools to indoor full-sized competition pools. UV disinfection is not only highly effective at destroying chlorine-resistant microorganisms like Cryptosporidium and Giardia, it improves your bather’s enjoyment by destroying chloramines and delivering visibly clearer water, minimising red eye, stinging eyes and skin irritation.

 Just Released:  Swimline UVEO model from Hanovia, gives you all the advantages of UV disinfection with 60% less power costs, and significantly reduced pool operational costs. See the "Product Specs" tab below for more information.

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Advantages of UV Disinfection of Swimming Pool Water

Swimming pool UV systems work in two ways, the primary action is to kill bacteria, viruses, moulds and their spores, drastically reducing the risk of infection to bathers. Pool UV systems also have an important secondary action; they initiate photochemical and photo-oxidation reactions which destroy chloramines, the compounds responsible for unpleasant smells in pools.

  • Visibly clearer water, reduced odours, minimised red eye, stinging eyes and skin irritation
  • Prevents structural damage caused by chlorine by-products.
  • UV disinfection leave no additives, no smell and no active pathogens in swimming pools
  • UV disinfection is highly effective at destroying chlorine-resistant microorganisms like Cryptosporidium and Giardia
  • Effective reduction of Pseudomonas aeruginosa
  • UV treatment of pool water is a brilliant way to improve existing pool treatment systems, lowering costs and delivering higher performance
  • UV disinfection destroys combined chlorines (chloramines) in swimming pools
  • Pool owners add dramatically less chlorine to the pool water, which means less dilution, less waste and noticeably purer water
  • UV disinfection treats full recirculating flow
  • No chemicals are required by the UV disinfection systems
  • UV disinfection is simply a cleaner technology, with water bathers love


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SwimLine UV system

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Hanovia

A UV disinfection system for swimming pool water that deactivates all known pathogens and destroys chloramines. Options available for all  size pools and all budgets Just ReleasedSwimline UVEO from Hanovia, gives you all the advantages of UV disinfection with 60% less power costs, and significantly reduced pool operational costs. 

Hanovia Swimline UV System

Swimline UV is a compact UV disinfection system from Hanovia for swimming pool water.   Swimline UV deactivates all known pathogens and actually destroys chloramines, so it’s the perfect way to improve chlorine-based treatment systems. With Hanovia UV, you can add dramatically less chlorine to the water in your pool. This means less dilution, less waste, and noticeably purer water.

Swimline UV Models Available: 

  • NEW! Swimline UVEO for 60% reduced power costs & reduced operational costs,
  • SwimLine-IL,
  • SwimLine-U,
  • SwimLine-S.
  • Swimline SPLASH for small pools and spas

Watch our video featuring the new Swimline UVEO

 

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  • Hanovia UV leaves no additives, no smell, and no active pathogens
  • Hanovia systems don't require daily maintenance
  • Systems are fully monitored to ensure delivery of the correct UV dose
  • Alarmed for the unlikely event of UV tube failure
  • Lower cost, higher performance through brilliant design
  • Minimal space required
  • Incredibly reliable and safe, with exceptional safety features 
  • Treats full recirculating water flow
  • Can reduce the amount of chlorine when using UV
  • Gives you water your bathers will love
  • Peace of mind with optional 5 year manufacturers warranty on the UV system*

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* conditions apply

Hanovia UV Solutions for Every Swimming Pool and Hydrotherapy Pool

Because of the SwimLine’s simple, highly compact design, it is easily incorporated into existing water treatment systems or can be included from the start into new builds. It is available in a range of configurations, from axial and in-line to U-shaped, making it perfect for any size of pool and every kind of plant layout.

UVEO Option

  • A new product platform that delivers Ultraviolet Energy Optimisation (UVEO) technology
  • Optimised design delivers 60% energy savings and effective water treatment
  • Higher flows can be treated with only one Hanovia Medium Pressure Lamp
  • Electronic Ballast technology for efficient power control during off peak times.
  • UVGuard patented technology for safe testing of UV intensity
  • Easy installation, automatic wiper
  • Outperforms traditional multiple lamp UV systems every time!

Up to 5 Years Manufacturer's Warranty

  • All Hanovia UV systems come standard with a 12 month warranty
  • Secure peace of mind with an optional 5 year manufacturer's warranty on the UV system*

*conditions apply

Reduce Chlorine Usage

In addition, because the SwimLine UV system dramatically reduces the amount of chlorine required, there is correspondingly less backwashing and dilution, less waste and notably purer water. The air around the pool is also much more pleasant.

Easy to Use

Hi-tech sensors and a microprocessor controlled computer interface give unprecedented control over the system – even from remote locations. Continuous UV monitoring and energy optimisation mean the system is more efficient and economical to run, while built-in alarms warn of low UV, power failures or other changes.

Minimal Maintenance

The SwimLine UV system uses Hanovia’s UVlux, broad spectrum UV arc tubes as standard, and automatic wipers keep the quartz sleeves housing the UV arc tubes clean, so the only regular maintenance is an annual service at which the UV lamp is changed.

Optimised using the latest computational fluid dynamics technology to model the perfect flow through the treatment chamber, the SwimLine UV system has undergone rigorous testing to ensure better UV distribution, high performance and reliability.

Destroy Combined Chlorines

Combined chlorines (or chloramines) are responsible for the distinctive ‘chlorine’ smell associated with indoor chlorinated pools. They also cause sore eyes and irritated skin and are a major cause of rust within indoor pool complexes. UV not only destroys chloramines, but is also a highly effective disinfectant in its own right. Virtually no microorganisms are immune to UV, even chlorine-resistant pathogens   

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 About Hanovia UV Systems

  • Hanovia UV systems conveniently fit into existing pipework in most process areas
  • Minimum site preparation
  • Pre-assembled units available pre-wired and skid mounted, requiring only connection to electrical supply
  • Silent operation
  • Can interface with most computer controlled continuous and batch processes
  • Inexpensive and Simple to Maintain
  • Simple and safe operation easily understood by operators
  • Designed for remote operation
  • Replacement of Arc Tubes is quick and simple

Rigorous Quality Control ISO 9001

  • All Hanovia stainless steel chambers and Arc Tubes built to the highest possible standards
  • Every Arc Tube is individually checked and each completed system tested and run before despatch.
  • Test certificates always supplied

All Hanovia UV Disinfection Systems include:

  • Disinfection chamber
  • Arc tube
  • Control/ power supply cabinet
  • UV monitor (optional)
  • Automatic cleaning mechanism (optional)

Why Is Hanovia the Leading UV Supplier?

  • Hanovia has pioneered the use of UV in various applications for over 75 years
  • Hanovia manufactures its own stainless steel cambers, quartz sleeves and arc tubes to the highest possible standards
  • Hanovia is the only system manufacturer which also makes Arc Tubes

 

 

Visit the Hanovia website: www.hanovia.com

 

Contact us on 02 4735 5054

Hydrotherapy Pool UV DisinfectionUV Treatment for Hydrotherapy Pool in Adelaide

Since installing the Hanovia UV in the Hydrotherapy Pool the therapists and patients at Calvary Rehabilitation Hospital can breath easy. And thanks to the 5 year warranty the management can also breath a sigh of relief!  Read more...

 

 

 

UV Disinfection for Indoor PoolsUltraviolet Disinfection Is A Breath Of Fresh Air For New Zealand Indoor Pools

Air and water quality has been transformed since the owners installed two Hanovia UV disinfection systems. Combined chlorine (chloramine) levels in the 25 metre main pool and the children’s pool are now below 0.2ppm. Read more...

 

 

UV Disinfection for Norwood Swim SchoolAnother Indoor Pool Transformed after Installing Hanovia UV Water Treatment Technology

Norwood swim school in Adelaide, South Australia is the latest Hanovia pool UV system success story. “As a swim school owner, the best thing you can do for your pool is to provide a pleasant environment for your customers”. Read more...

 

 

 

UV Disinfection for Adelaide Aquatic CentreHanovia UV System has Immediate Effect on Water Quality at Adelaide Aquatic

Adelaide Aquatic Centre experiences a dramatic fall in combined chlorines since installing Hanovia UV, even with heavy bather loads.  Read more...

 

 

 

UV Disinfection For Eltham Swim SchoolHanovia UV brings in the bubs at Eltham Swim School

Once word got around that our pool water quality was far superior to other pools, we have seen a steady stream of new parents enrolling their kiddies.” Kevin Fitzpatrick, owner and proprietor of the Eltham Swim School in Eltham Victoria. Read more...

 

 

 

UV Disinfection for Spa PoolsLeading spa relies on Hanovia UV to keep its spring water pure

Hanovia UV disinfection systems are now treating nine pools, including the UK’s largest floatation pool, at Nirvana Spa in Berkshire. Nirvana Spa is one of the UK’s most prestigious spa facilities, frequented by elite athletes and celebrities. Read more...

 

 



 

 

 

 

 

Following is an extract from UV Treatment of Pool Water-Fact & Fiction by Graham Smith.

UV Treatment of Pool Water- Fact & Fiction

Key Points:

  1. Many indoor public and municipal swimming pools use UV treatment to destroy harmful chloramines.
  2. UV treatment is a very effective secondary disinfectant.
  3. No longer need to Superchlorinate, reducing chlorine usage and increasing pool availability.
  4. Using UV to destroy chloramines leads to a cleaner, safer environment for bathers and staff.
  5. Reduce corrosion of iron and steel structures brought about by the corrosive effect of chloramines.
  6. Predominantly used in indoor pools with higher bather loads.
  7. Medium pressure lamps are the most effective.
  8. Budget for a significant financial investment.
  9. UV treatment often results in increased pool patronage.

Introduction:

Ultraviolet (UV) radiation is being used increasingly to both destroy harmful combined chlorine (otherwise known as chloramines) and act as an additional disinfectant barrier to complement the role played by free chlorine in swimming pools.

Importantly, both UV and free chlorine have a role to play in the disinfection of pool water. While chlorine is very effective in destroying common water borne bacteria such as E. coli and various strains of faecal coliform, it is relatively ineffective against protozoan parasites such as Cryptosporidium and Giardia, which can readily contaminate a swimming pool via infected swimmers. These parasites are particularly pathogenic with those infected suffering symptoms including severe abdominal pain and diarrhea. In uncommon but extreme cases involving either the very young or very old, deaths have been reported from Cryptosporidiosis.

Having said this, UV should only ever be seen as a secondary pool water disinfectant, with chlorine used as the primary disinfectant. This is because chlorine has a very important property which UV lacks – the ability to provide a residual level of disinfectant in the pool water. This means, chlorine can remain in the pool water actively combating pathogens at the very moment they are introduced. UV on the other hand, can only disinfect the water as it passes through the UV chamber. Once the water has left the chamber, it is available to be re-infected by swimmers when the water returns to the pool. It is for this reason that most public and municipal swimming pools use UV systems more as a means to destroy harmful chloramines than as a disinfectant.

Download the full text here. UV Treatment of Pool Water- Fact or Fiction

 

 

Author:

Graham Smith. Fluidquip Australia Pty Ltd. 

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How Does Ultraviolet Disinfection Work?

Ultraviolet energy causes permanent inactivation of micro-organisms by disrupting its DNA so that they are no longer able to maintain metabolism or reproduce. All bacteria, spores, viruses and protozoa (including Cryptosporidium and Giardia oocysts are permanently inactivated by UV). The maximum effectiveness occurs at between 240nm and 280nm. The Hanovia UV systems produce these wavelengths in abundance.

The Mechanism of Ultraviolet Disinfection

Strong sunlight disinfects water by permanently de-activating bacteria, spores, moulds and viruses. Over a century ago, scientists identified the part of the electromagnetic spectrum responsible for this well-known effect; wavelengths between 200nm and 300nm, often called UV-C. The most effective single wavelength is typically UV at 265nm, however recent research in the USA has shown that 271nm light and 263nm light are the most effective UV wavelengths for the deactivation of particular target organisms. 

The mechanism of kill is well documented and unlike chemical disinfectants the organism is unable to develop any immune mechanisms. The mechanism of kill involves the absorption of photons of UV energy by the DNA, which fuses the DNA and prevents replication. DNA (Deoxyribonucleic acid) consists of a linear chain of nitrogen bases known as purines (adenine and guanine) and pyrimidines (thymine and cytosine). These compounds are linked along the chain by sugar-phosphate components. The DNA of most forms of life is double stranded and complimentary; the adenine in one strand is always opposite thymine in the other, and linked by a hydrogen bond, and guanine is always paired with cytosine by a hydrogen bond. The purine and pyrimidine combinations are called base pairs. When ultraviolet light of a germicidal wavelength is absorbed by the pyrimidine bases (usually thymine) the hydrogen bond is ruptured. The dimer that is formed links the two bases together, and this disruption in the DNA chain means that when the cell undergoes mitosis (cell division) the DNA is not able to replicate. The most effective wavelengths to achieve this effect are found between 263nm to 275nm, and the peak wavelength distribution is dependent on the target organism.

The optimal operating temperature is 15oC, and the lamp output will fall off rapidly as the lamp temperature migrates from this condition. These lamps should not be used if the water is hot or cold, or if the water flow is intermittent as the temperature build up will cause the lamp output to decrease. Frequent switching of these lamps will have a detrimental effect on lamp life, and the most probable failure mode will be failure of the filaments, which become brittle. The article "The dying of the light" describes the variable output of these mass produced lamps and offers some suggestions as to how the performance might be optimised. Typically these lamps have an efficiency of 25-30%, which is temperature dependent. The lamp life is typically 8000 hours, and the lamps have the advantage of being mass produced and easily second sourced.

Amalgam lamps have been developed recently to overcome the problems associated with traditional low-pressure technology. This type of lamp contains a mercury amalgam, and typically up to 120mg of mercury is contained in each lamp. The Amalgam lamp is typically very long, and not unusually can be more than 1.5 m (5 feet) in length. Once switched on, the Amalgam lamp output is not effected by water temperature fluctuations, however the large size of the lamp does mean that they can take up to 800 seconds to get to full power, and the warm up time is temperature dependant, as the successive strikes below illustrate.


Ultraviolet  Applications

Research is now being undertaken to verify the effect that shorter wavelength ultraviolet  light has on the other cell membrane of the organism. This shorter wavelength is more energetic and is absorbed by the organisms outer membrane. A lethal insult is effected, which means that the cell is unable to effectively regulate osmotic pressure. This effect coupled with the fusing of the DNA means that UV is a simple, elegant disinfectant and one that will increasingly replace the more traditional chemical techniques.


The Production of Ultraviolet Light

Ultraviolet light is most typically generated from a low pressure or a medium pressure lamp. These lamp types are different in character and performance, and are described below:

Low Pressure ultraviolet lamps are the most common lamp type and are the oldest source of ultraviolet light. The consist of a quartz envelope that separates two tungsten filaments. The lamp is evacuated to <10torr and approximately 60mg of mercury is introduced into the quartz envelope. The spectral output of this lamp type is monochromatic, a single line output at 253.7nm. A fluorescent lamp is a low-pressure lamp that has the inner surface of the lamp coated with phosphors to absorb all of the 253.7nm light, and only emit the longer wave visible light. This lamp type is typically 1 meter (3 feet) in length. This lamp has an output that is temperature dependent and can take up to 400 seconds to get to full output in cool or hot water.

The medium pressure ultraviolet lamp that is built by Hanovia is designed to have a spectral output that is specifically enhanced in the germicidal region. These lamp types are often called polychromatic, as they have a continuous output from 200nm up to the long wave visible light. Medium pressure lamps have a deeper vacuum produced within the quartz envelope (typically 1000 torr) and a 3.5Kw lamp will contain approximately 300mg of mercury. The Hanovia lamps have an efficiency of between 15% to 20%, depending on lamp type, and typically 15 low pressure lamps or 6 amalgam lamps will have a comparable output. The medium pressure lamp is hot running and typically the lamp surface will reach 800oC, however the protective sleeve that separates the lamp from the fluid being treated will not usually rise above 60oC. An over temperature detector will power down the lamp should the water flow stop for an extended period. Medium pressure lamps are typically from 20cm to 1.5M in length and a variety of quartz types are selected depending on the required spectral output; pure fused silica is used for disinfection, dopants are introduced to enhance particular spectral regions, or to inhibit ultraviolet wavelengths which at extremely high ultraviolet doses could have detrimental effects.

The Hanovia ultraviolet lamps are built at the Slough factory in a clean room environment. Every lamp is individually tested before despatch, and each batch is 100% documented to ensure that in the unlikely event of a lamp failure, every lamp made in the suspect batch can be traced. Hanovia manufactures in excess of 12,000 lamps per annum. Each lamp is individually numbered and any lamp failure is investigated and a failure mode analysis report generated.

Ultraviolet Technology in Use

Ultraviolet technology is now applied by a broad range of operators from municipal effluent to ultrapure rinse water, and from viscous high brix sugar syrups to air. The technique has been successfully extended to disinfect packaging materials prior to filling, and new developments have included the use of UV to deodorise nuisance smells from industrial or municipal dischargers. Ultraviolet is also applied to drinking water to assist in the destruction of pesticides or other contaminants that have entered the aquifer, such as NDMA or MTBE. In each case, the ability of a monitoring system to measure the fluence being emitted by the lamp allows the operators to have confidence in the integrity of the system. Hanovia systems are designed to be fail safe and the control protocols that are used will not allow untreated water of effluent to be sent forward. The dedicated ultraviolet monitor measures the output from each lamp. The monitors are sealed and do not allow any operator adjustment. The Hanovia ultraviolet monitor measures intensity in absolute units of mw/cm2. An online transmittance monitor measures the transmittance of the fluid being treated, and not unusually surface water can have a very high fluctuation in transmittance. Use is made of data logging facilities to demonstrate the adequacy of treatment, and to provide a permanent record of disinfection. This transparency is often required by a regulator or by those further up the supply chain to demonstrate that the water used to make product or water used as a part of the manufacturing process in wholesome.

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Hydrotherapy Pool UV DisinfectionHanovia UV to Treat Indoor Pool & Rainwater

Hong Kong's Victoria Park Swimming Pool Complex is now using Hanovia UV to treat their indoor pools and rainwater. The ease of use, low running costs and compact size were all deciding factors. "Compare to ozone treatment, UV is up to five times cheaper to maintain". They recently installed 21 Hanovia UV disinfection systems to treat the water in three of its indoor pools and to disinfect harvested rainwater.   Read more...

 


 Hydrotherapy Pool UV DisinfectionUV Treatment for Hydrotherapy Pool in Adelaide

Since installing the Hanovia UV in the Hydrotherapy Pool the therapists and patients at Calvary Rehabilitation Hospital can breath easy. And thanks to the 5 year warranty the management can also breath a sigh of relief!  Read more...

 

 


UV Disinfection for Indoor PoolsUltraviolet Disinfection Is A Breath Of Fresh Air For New Zealand Indoor Pools

Air and water quality has been transformed since the owners installed two Hanovia UV disinfection systems. Combined chlorine (chloramine) levels in the 25 metre main pool and the children’s pool are now below 0.2ppm. Read more...

 


UV Disinfection for Norwood Swim SchoolAnother Indoor Pool Transformed after Installing Hanovia UV Water Treatment Technology

Norwood swim school in Adelaide, South Australia is the latest Hanovia pool UV system success story. “As a swim school owner, the best thing you can do for your pool is to provide a pleasant environment for your customers”. Read more...

 


UV Disinfection for Adelaide Aquatic CentreHanovia UV System has Immediate Effect on Water Quality at Adelaide Aquatic

Adelaide Aquatic Centre experiences a dramatic fall in combined chlorines since installing Hanovia UV, even with heavy bather loads.  Read more...

 

 


UV Disinfection For Eltham Swim SchoolHanovia UV brings in the bubs at Eltham Swim School

Once word got around that our pool water quality was far superior to other pools, we have seen a steady stream of new parents enrolling their kiddies.” Kevin Fitzpatrick, owner and proprietor of the Eltham Swim School in Eltham Victoria. Read more...

 

 


UV Disinfection for Spa PoolsLeading spa relies on Hanovia UV to keep its spring water pure

Hanovia UV disinfection systems are now treating nine pools, including the UK’s largest floatation pool, at Nirvana Spa in Berkshire. Nirvana Spa is one of the UK’s most prestigious spa facilities, frequented by elite athletes and celebrities. Read more...

 

 



 

 

 

 

 

Choosing A Swim School 

There are many aspects to choosing a swim school for your babies and children.  Expert teachers and facilities that deliver year round comfort and clean water are the amongst the first considerations that come to mind for most parents.  Leading swim schools go a step further and invest in UV disinfection for an additional barrier against water borne bacteria like e.coli and parasites such as Cryptosporidium and Giardia. UV disinfection inactivates the bacteria, viruses, moulds and spores that survive chlorine. When you choose a swim school using UV disinfection you improve your children’s swimming experience, with visibly clearer water, minimised red eye, stinging eyes and skin irritation. UV disinfection delivers safe water with less chemicals, cleaner air and no irritations which is better for babies, children, carers and swim school teachers.

So, when you are choosing a swim school, ask about how they provide the most hygienic water with the least irritation. Ask about UV disinfection.

 

Here are some swim schools that have invested in the safest water for your children:

VICTORIA

Eltham Swim School

1441 Main Rd, Eltham Victoria. 039439 8271

www.elthamswim.com.au

 

Jump! Swim Schools Pakenham

6/99 Bald Hill Rd, Pakenham, VIC.  03 5941 6555

www.jumpswimchools.com.au

 

Starfish Swim School 

10 Clapperton Street Bentleigh Victoria. 03 9557 8188

 starfishswimschool.com.au

 

SOUTH AUSTRALIA

Adelaide Aquatic Centre

Jeffcott Rd, North Adelaide, SA. 08 8203 7665

adelaideaquaticcentre.com.au

 

Norwood Swim School

273 The Parade, Beulah Park. 08 8332 1136

Norwoodswimschool.com.au

 

Stateswim Clovercrest

2/438 Montague Rd, Modbury North, SA. 08 8264 1268

 www.stateswim.com.au/schools/clovercrest/

 

NSW

In2Swim 

563 Pittwater Road Brookvale NSW. 02 9907 1167

 www.in2swim.com.au

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