Hanovia Recognised by Chinese Award

Hanovia’s UV technology named ‘Great British Product’ at British Business Awards in Beijing

UV disinfection specialist Hanovia is delighted to announce that it has won the 2014 ‘Great British Product’ award at this year’s British Business Awards in Beijing, China. Hanovia won the award for its PharmaLine and PureLine range of UV disinfection systems.
(Caption: Rebecca Kang from Hanovia’s Beijing office receiving the award)

“This is the first time we have won this award and we are absolutely delighted. It is a great recognition of the quality and reliability of our UV technology,” commented Wang Tao, Hanovia’s China General Manager. The award was accepted by Rebecca Kang, the administrative assistant at Hanovia’s Beijing office.

Organised by the British Chamber of Commerce in China and the China-Britain Business Council, the British Business Awards recognise and promote excellence in innovation, enterprise and endeavour in the British and Chinese business communities. They highlight organisations who are achieving outstanding results and who demonstrate commitment to trade and investment in China. The Awards have grown in stature since the inaugural edition in 2008 to become a prestigious feature of the business calendar in China.

Hanovia’s PharmaLine and PureLine disinfection systems stood out from rivals as they are designed very specifically to provide effective water disinfection in the pharmaceutical, food and beverage industries, where effective disinfection is essential and driven by legislation.

Mr Wang continued: “As a leading UV company Hanovia is dedicated to continuous innovation. Since we entered the Chinese market in 2005 we have successively launched a number of innovative products for the Chinese food, beverage and pharmaceutical industries, winning unanimous praise from industry experts. This makes us extremely proud of the work we do.

“This year also saw us celebrate Hanovia’s 90th anniversary, so it’s a very special time for the company. We recently established an Asia Pacific UV Application R&D Centre in Shanghai and we will continue to innovate and provide better and safer UV technology to the Chinese food & beverage industry.”

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90 Years and Counting!

For 90 years Hanovia, tucked away in the Berkshire town of Slough in the UK, has been quietly innovating. From its early days making UV lamps for treating skin conditions to today’s high-tech UV water treatment systems, the company has always been at the forefront of UV science and, at 90, age is no barrier to innovation!

Hanovia is now a world leader in UV disinfection for applications as diverse as food and beverage processing, pharmaceutical manufacturing, brewing, electronics, swimming pools, buildings, ballast water and fish farms.

To celebrate its 90th anniversary the company hosted a celebration at its HQ on November 3 which was attended the Mayor of Slough, Shafiq Chaudhry, Rob Anderson, the Leader of Slough Borough Council, representatives from SEGRO (which runs Slough Trading Estate), journalists and ex-Hanovia employees.

After a brief talk by John Ryan, Hanovia’s Managing Director, about Hanovia’s long history – and looking ahead to the next 10 years – visitors had a short factor tour which was followed by a cake-cutting ceremony and lunch.

It was fantastic to see so many ex-employees on the day – and we were honoured that the Mayor was able to attend. Everyone found John’s talk interesting and the factory tour was the first time some of the visitors had even see a UV system, so there were plenty of interesting questions!

(Left-Right: John Ryan, Hanovia’s Managing Director, Rob Andersen, Leader of Slough Borough Council and Shafiq Chaudhry, the Mayor of Slough, at the cake-cutting ceremony)

(Left-Right : John Ryan, Hanovia’s Managing Director, Shafiq Chaudhry, the Mayor of Slough, Gunvinder Bhogal, Hanovia’s Marketing Manager and Rob Andersen, Leader of Slough Borough Council, during the factory tour)

Before Hanovia – the Slough Connection
Sir William Herschel first discovered ‘invisible radiation’ (infrared rays) in Slough in 1880. His discovery led to Johann Wilhelm Ritter’s discovery of ultraviolet radiation in Germany a year later.

Hanovia and UV
Hanovia’s history goes back to the early 1920’s, when the company started manufacturing UV lamps in Slough for medical treatment. ‘Actinotherapy’ or ‘artificial sunlight’ gained popularity after it was found that it cured rickets and helped in the healing of wounds. From then on, no hospital could afford to be without UV equipment. Hanovia was also one of the innovators of air disinfection using UV.

From those early days, Hanovia has evolved into one of the world’s leading manufacturers of UV lamps and systems for water disinfection in the industrial, leisure, building, aquaculture and shipping industries.

Hanovia’s timeline:
1924 – The British Hanovia Quartz Lamp Co Ltd is founded in Slough, holding various patents and manufacturing rights across the British Empire
1925 – The company starts manufacturing UV lamps for medical and other applications
1927 – Hanovia extends its operations overseas, appointing distributors in Australia, India and New Zealand
1928 – UV ‘artificial sunlight’ receives significant press coverage and front page news due to the work Hanovia was doing for medical applications
1931 – Hanovia starts publishing ‘The Quartz Lamp’, a quarterly journal reproducing the best articles in the field of actinotherapy
1934 – The company acquires land in Slough and begins building its own office and factory premises, which are opened in 1935
1935 – The company is renamed Hanovia Limited
1936-1939 – These years see the development of an entire new range of therapeutic lamps and a series of laboratory models based on a new UV ‘arc tube’
1939 – The company introduces ‘low pressure’ mercury discharge tubes for bactericidal irradiation
1939 – 1945 – Hanovia manages to retain its unique team of specialists and continues operation as an ‘Essential Establishment’
1942 – The company designs ‘high pressure’ UV arc tubes for use in high speed photo printing
1949 – By now, food, beverage and pharmaceutical manufacturers across Europe are using Hanovia’s UV technology for bacterial disinfection
1950 – The ‘Biscayne’ domestic sunlamp is launched
1955 – The company introduces a portable fluorescent UV lamp for actinotherapy
1960 – A domestic room heater is launched
1981 – Hanovia is acquired by Halma plc, a FTSE 250 company with subsidiaries around the world, focusing on hazard detection, life protection, personal and public health improvement and environmental protection
1983 – Aquionics begins operation as Hanovia’s North American sales, marketing and service arm
1986 – Hanovia collaborates with the ‘North Sea Sun Oil’ rig to eliminate bacteria in seawater used for downhole injection
1987 – Aquionics installs the first UV system for drinking water treatment in North America at the Fort Benton, Montana Drinking Water System facility
1988 – Berson UV-techniek (founded in 1972) is acquired by Halma plc
1992 – The new low pressure WS 200 Series is introduced
1993 – Hanovia is the first company to gain approval for its technology with dose control from the US Environmental Protection Agency (USEPA)
1994 – Riverside Leisure Centre in Exeter is the first in the UK to install UV for swimming pool water treatment (supplied by Hanovia)
1997 – Hanovia launches the ‘Photon’ medium pressure UV system with dose monitoring
2001 – The company’s technical expertise is recognised by a Queen’s Award for Innovation for the ‘SuperTOC’, a UV system for removing contaminants from ultrapure water used in electronics manufacturing
2004 – Hanovia launches the ‘CrossFlow’ UV system for municipal applications, which also receives USEPA validation
2006 – The ‘AF3’ low pressure, amalgam UV system is launched for industrial applications such as pharmaceutical and beverage production. The AF3 has a unique ‘L’ shaped UV chamber to optimise water treatment
2007 – Hanovia focuses on industrial applications while Berson UV-techniek focuses on municipal applications
2007 – The company opens a sales and service office in Shanghai, China
2008 – Hanovia relocates to new, larger premises in Slough, giving the company scope to significantly increase production
2009 – Hanovia wins the Ringier ‘Technology Innovation Award’ for the beverage market in China. The company subsequently won the award in 2012 and 2014
2010 – The company partners with Wartsila to produce a ship ballast water UV treatment system to prevent invasive species being transported in ballast water
2011 – PureLine, PharmaLine and SwimLine are launched to support specific market requirements in the beverage, pharmaceutical and leisure industries
2012 – The award-winning, 3rd party accredited PQ (Performance Qualified) range for the beverage and pharmaceutical markets are launched
2014 – Hanovia’s UV Application Centre is opened in Shanghai, China, enhancing the research and development of UV science.
Today – 80% of Hanovia’s business is export, with 20% of turnover coming from China

The future – As it turns 90, Hanovia is now widely recognised as a world leader in UV technology for industrial, leisure, building, aquaculture and shipping applications. The future is looking very exciting for a company that, while staying true to its roots in a small Berkshire town, is a global player.

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Hanovia’s PureLine PQ Offers an Economic Alternative for Dairy Pasteurisation

Hanovia’s PureLine PQ range of UV disinfection systems is designed specifically to provide validated and chemical-free treatment of process water used in the dairy, food and beverage industries. PureLine PQ provides a time- and cost-effective alternative to standard pasteurisation – it also meets the US Food and Drug Administration’s 2011 Pasteurized Milk Ordinance guidelines.

Hanovia’s PureLine PQ Offers an Economic Alternative for Dairy Pasteurisation

Hanovia’s PureLine PQ Offers an Economic Alternative for Dairy Pasteurisation

PureLine PQ uses either low pressure high output or medium pressure lamps to safely disinfect water passing through the system, exposing it to UV light and deactivating any microorganisms present. All systems feature an automatic wiper to automate optical path maintenance, further reducing operating expenses.

The Dairy Plus Co. Ltd. in Thailand has recently replaced its chlorine-based disinfection system with five PureLine PQ UV systems – four duty and one standby. Two units disinfect clean-in-place (CIP) water and two are used for treating dairy mixing water, with each system treating up to 130m3/hour of water. Dairy Plus decided to reduce high levels of chlorine dosage throughout the process because it was proving ineffective at removing all microorganisms, particularly in the rainy season. It was also producing an after-taste in the product.

“Since our UV systems were installed the customer is very satisfied and reports excellent disinfection results,” commented Ying Xu, Hanovia’s Asia-Pacific Sales Manager. “Dairy Plus is particularly impressed by the low maintenance costs, the high energy output of the systems and the fact that the frequency of CIP procedures has been dramatically reduced, meaning less down-time of the manufacturing process”.

Hanovia is celebrating its 90th anniversary this year! From its early days manufacturing UV lamps to treat skin conditions to today’s validated, performance qualified UV water treatment systems, the company has always been a technology leader and at the at the forefront of UV innovation.

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Hanovia showing Performance Qualified UV Disinfection at Asiawater 2014

British UV disinfection specialist Hanovia is introducing its new Performance Qualified (PQ) UV disinfection technology at Asiawater 2014 in Malaysia this March. The company’s PQ range will be shown by its local partner Repassa Engineering Sdn Bhd at Booths B210 & 212. Asiawater is Asia’s leading water and wastewater industry trade show.

Hanovia PureLine and PharmaLine PQ UV disinfection system

Hanovia PureLine and PharmaLine PQ UV disinfection system

Ms. Xu Ying, Hanovia’s Asia-Pacific Regional Manager has also been invited to give a keynote speech at the Asiawater Technology Symposium, which is held concurrently with the exhibition.

Designed specifically to provide performance-qualified UV disinfection of water in the food, beverage, pharmaceutical and other high purity applications, Hanovia’s PQ system provides the ultimate process security with performance validation from an authoritative 3rd party. All PQ systems provide real-time UV monitoring (including self-compensation for varying water quality), validated UV dose calculations and simple-to-use smart controls. These all add up to maximum biosecurity for the production process and maximum peace of mind for the user.

“By working with our excellent local partner Repassa we’ve already achieved many successful installations across South East Asia, with great feedback from the customers,” commented Ms. Ying. “Meanwhile, supported by an increasingly regulated and safety-conscious market, we’ve also noticed a strong need for advanced UV technology from many requiring high purity processing water, including food, beverage and pharmaceutical.”

She added: “Asiawater is the perfect platform to introduce our state-of-the-art technology to the Asian market and help manufacturers improve productivity and have peace of mind at the same time.”

Founded in 1924, Hanovia is celebrating its 90th anniversary this year. The company has always been a pioneer in UV technology for disinfection and chemical reduction applications. By working with the biggest names in food, beverage, electronics, pharmaceutical, aquaculture, pools and leisure, and many other industries, Hanovia offers the finest UV solutions to our customers.

For more information please contact:
Ying Xu
Hanovia Asia-Pacific Office
Tel: +86 (10) 6588 6200, Fax: +86 (10) 6588 8311
E-mail: Ying.Xu@hanovia.com / asiapacific@hanovia.com
Website: www.hanovia.com

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Using UV Disinfection to Ensure Bio-Security in the Pharmaceutical, Food and Beverage Industries

The pharmaceutical and food & beverage industries are unique in that their products are either consumed directly or are used in products that are actively consumed by people. In an increasingly regulated and safety-conscious market, these industries have to meet ever more stringent standards on water quality and bio-security.

It is vital to treat the water used in the manufacturing process to remove toxins, biohazards and any unwanted organic materials, while at the same time not incurring any residual taste, colour or reagents that could affect another part of the downstream process. In these industries the ‘raw’ potable water they source at the start of the process may not be completely free of bio-challenges, as needed for their individual processes, resulting in active growth of microorganisms to harmful levels.

UV disinfection for processing

UV disinfection for processing

UV is ideal for these applications as it is both effective and chemical-free. It eliminates all known pathogenic and spoilage microorganisms, including bacteria, viruses, yeasts and moulds (and their spores) and is low maintenance and environmentally friendly.

In this article Mark Aston, Hanovia’s Technical Manager, discusses the importance of UV in ensuring bio-security.

The importance of bio-security
Bio-security is very important to understand from both the supplier and customer perspective. It is a fine balancing act between providing an appropriately-sized treatment system on the one hand while ensuring viable cost of ownership on the other.

Where a UV system is required to target a specific bacteria, virus or other bio-hazard, the precise minimum dose needed to achieve the required reduction of that hazard must be well characterised and monitored in delivery. Three general types of system can be used for this task:

  • Very cost-effective systems monitored for a minimum lamp intensity that achieve a minimum delivered dose which is not defined
  • Cost-effective systems that have been referenced to known validations and therefore offer an assured bio-security, but without the absolute cost of a full validation
  • Costly systems that have been fully validated to monitor the precise dose delivered and the power of the system controlled to continually deliver that required dose

How UV disinfection works
UV is the part of the electromagnetic spectrum between visible light and X-rays. The specific portion of the UV spectrum between 185-400nm (known as UV-C) has a strong germicidal effect, with peak effectiveness at 265nm. At these wavelengths UV eliminates microorganisms by penetrating their cell membranes and damaging the DNA, making them unable to reproduce and effectively killing them.

A typical UV disinfection system for process water or liquid ingredient consists of a UV lamp housed in a protective quartz sleeve and mounted within a cylindrical stainless steel chamber. The liquid to be treated enters at one end and passes along the entire length of the chamber before exiting at the other end. Virtually any liquid can be effectively treated with UV, including raw mains water, filtered process water, viscous sugar syrups, beverages and effluent.

There are no microorganisms known to be resistant to UV; this includes pathogenic bacteria such as Listeria, Legionella and Cryptosporidium (and its spores, which are resistant to chlorination).

UV dose
The UV dose necessary for microbial deactivation varies from one species to another and is measured in millijoules per square centimetre (mJ/cm2). Values for specific microorganisms have been experimentally established and are used to determine the type and size of UV system required.

The dose received by an organism in a UV treatment system is dependent on four main factors:

1.    The energy output of the UV source
2.    The flow rate of the fluid through the treatment chamber
3.    The transmission value (ability to transmit UV light) of the fluid being treated
4.    The geometry of the treatment chamber

By optimising these criteria, a UV system can be tailored to effectively treat large or small flows, as well as viscous fluids or those containing dissolved solids and high levels of starch or sugar compounds.

UV technologies
There are two main types of UV technology based on the UV lamps used: low pressure and medium pressure. Low pressure lamps have a ‘monochromatic’ UV output (limited to a single wavelength at 254nm), whereas medium pressure lamps have a ‘polychromatic’ UV output (between 185-400nm).

As UV has no residual effect, the best position for a treatment system is immediately prior to the point of use. This ensures incoming microbiological contaminants are destroyed and there is a minimal chance of post-treatment contamination.

UV applications in the pharmaceutical, food and beverage industries
Direct contact water
Although municipal water supplies are normally free from harmful or pathogenic microorganisms, this should not be assumed. In addition, water from private sources such as natural springs or boreholes could also be contaminated. Any water used as an ingredient, or that comes in direct contact with the product, can therefore be a source of contamination. UV disinfects this water without chemicals or pasteurisation. It also allows the re-use of process water, saving money and improving productivity without risking the quality of the product.

CIP (Clean-in-Place) rinse water
It is essential that the CIP final rinse water used to flush out foreign matter and disinfecting solutions is microbiologically safe. Fully automated UV disinfection systems can be integrated with CIP rinse cycles to ensure final rinse water does not reintroduce microbiological contaminants.

Filter disinfection
Reverse osmosis (RO) and granular activated carbon (GAC) are often used to filter process water, but can be a breeding ground for bacteria. UV is an effective way of disinfecting both stored RO and GAC filtered water and has been used in the process industries for many years.

GAC filters are also often used to dechlorinate process water, removing the ‘off’ flavours often associated with chlorine disinfection, meaning the flavour of the final product remains untainted and free from unwanted flavours or odours. Placing UV systems ahead of GAC filters used for dechlorination improves the performance of the filters and results in longer carbon runs, so decreasing operating costs.

As the usual dose for removing free chlorine is 15 to 30 times higher than the normal disinfection dose, an important additional benefit of using UV dechlorination is a high level of UV disinfection, reduction in Total Organic Carbon (TOC) and improved overall water quality at point-of-use.

TOC reduction
Short UV wavelengths (below 200nm) are highly effective at breaking down organic molecules present in water, commonly known as Total Organic Carbon (TOC), especially low molecular weight contaminants. This works in two ways: the first method is by direct photolysis, when energy from the UV actually breaks down chemical bonds within the organics; the second method is by the photolysis of water molecules, splitting them to create charged OH- radicals, which also attack the organics.

Cooling media and chiller disinfection
Some meat and dairy products are subject to contamination after heat treatment or cooking. UV provides an excellent way to protect foods from contamination by contact-cooling fluids.

Sugar syrups
Sugar syrups can be a prime breeding ground for microorganisms. Although syrups with very high sugar content do not support microbial growth, any dormant spores may become active after the syrup has been diluted. Treating the syrup and dilution water with UV prior to use will ensure any dormant microorganisms are deactivated.

Liquid sweeteners
Sucrose-based sweeteners can be a prime breeding ground for microorganisms. UV systems are available specifically for treating these syrups.

De-aerated liquor
De-aerated liquor is added as part of a high gravity brewing process, often in the packaging operation. This liquor is added directly to the beer so needs to be kept free from contamination by gram negative bacteria, which can cause off-flavours and acidity.

Yeast preparation
The problems associated with yeast preparation in breweries are well recognised and include hazes, altered fermentation and surface membranes on packaged beer. A single cell of Sacchoromyces (var. Turbidans) in 16 million cells of pitching yeast will cause detectable hazes. UV destroys all known yeasts and their spores.

Waste water
Effluent from pharmaceutical, food and beverage facilities can be treated without the use of environmentally hazardous chemicals. This ensures all discharges meet with local environmental regulations. As already mentioned, because process water can be treated and re-used with UV, this also leads to a significant reduction in the amount of waste water produced.

Meeting the increasingly rigorous hygiene standards required in the production of pharmaceutical, food and beverage products is a real challenge. If improvements need to be made to plant and equipment, they need to bring quick returns on the investment and measurable improvements in product quality.

For manufacturers seeking to improve the quality of the end product and to ensure the bio-security of their process, UV is an economic, realistic option. It is already an established method of disinfecting drinking water throughout the world, and is already widely used for high purity applications where water of the highest quality is essential.

UV disinfection systems are easy to install, with minimum disruption to the plant. They need very little maintenance, the only requirement being replacement of the UV lamps every 9 – 12 months, depending on use. This is a simple operation that takes only a few minutes and can be carried out by general maintenance staff.

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Hanovia Showing its PureLine PQ UV System at Dubai Drink Technology Expo

Hanovia and its Dubai-based distributor Water Engineering Technologies FZC will be showing the PureLine PQ (Performance Qualified) UV disinfection system at this year’s Dubai Drink Technology Expo, held from 16-18 December.  They’ll be in Hall 4, Booth 401.

Hanovia Showing its PureLine PQ UV System at  Dubai Drink Technology Expo

Hanovia Showing its PureLine PQ UV System at Dubai Drink Technology Expo

Ensuring biosecurity of water systems, the PureLine PQ is designed to exacting industry standards using the latest design techniques to maximise performance. Its disinfection performance has been independently tested and validated by Carollo Engineers in the USA to the USEPA protocol following the UV Disinfection Guidance Manual (UVDGM) guidelines.

Product selection is simple with the PureLine range: all that’s needed to choose the correct model is the application and the required flow – the appropriate model is then simply selected from the appropriate datasheet. Hanovia will have already specified the necessary dose, chamber geometry, lamp type, surface finish, seal materials and connections that are typically required by that application. Special designs can also be supplied for users who have unusual requirements.

Come along, meet the team and learn how the revolutionary, optimised, absolute intensity UV monitor allows the PureLine PQ’s controller to automatically correct the dose calculation as UV transmittance varies – without the need for an external UV transmittance monitor.

UAE contact:
Joy Vazhappilly (Sales & Marketing Director)
Water Engineering Technologies FZC
P O Box: 9323, SAIF Zone, Q3-210, Sharjah
United Arab Emirates
Telephone: +971 6 557 8230, Fax: +971 6 557 8231
Email: sales@wet-fzc.com
Website: www.wet-fzc.com

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Are you attending Aquatech Amsterdam?

Then you could win a SteriPEN Handheld Water Purifier!

Are you attending Aquatech Amsterdam?

Are you attending Aquatech Amsterdam?

Just visit the Halma Water booth at 01.204A and answer 3 questions about our 3 UV companies.

If you don’t know the answers don’t worry – we’ll tell you! Then pop your answers into the box and we’ll randomly select the winner at 11am on Friday, November 8th.

The questions:
•    What Aquionics light source is used in its PearlSenseT product?
•    Which Hanovia UV system is validated and designed specifically for the food and beverage industry?
•    Why is Berson’s USEPA-validated InLine UV system the only large-range, ‘really safe’ product currently available?

Please note that only ONE entry is allowed per person – we’ll be checking!

We hope to see you at the show.

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England’s Top Football Clubs Get The Hanovia UV Treatment

Hydrotherapy pools using UV to keep water pure & athletes healthy

Some of England’s most famous football clubs are using Hanovia’s UV disinfection technology to purify their hydrotherapy pools. Water of exceptionally high quality is required as the clubs cannot afford for their players to fall ill as a result of water-borne pathogens like Cryptosporidium or Giardia.

Some of England’s most famous football clubs are using Hanovia’s UV disinfection technology to purify their hydrotherapy pools.

Some of England’s most famous football clubs are using Hanovia’s UV disinfection technology to purify their hydrotherapy pools.

English football is a multi-million pound business with a huge global audience. The key focus is centred on the success of the football clubs and their players. For every club it is essential their stars remain fit throughout the long, demanding season, so no expense is spared in providing world class facilities to make sure they perform at optimum levels. This includes the use of state-of-the-art hydrotherapy facilities to treat muscle injuries and accelerate recovery times.

James Hadley, Hanovia’s UK Sales Manager, says: “Bacteria like Cryptosporidium are highly resistant to chlorine and can’t be eliminated by using the chemical on its own – an additional step is required to ensure their complete removal. UV is now one of the most popular methods of destroying them. In addition, chloramines – the unpleasant by-products of chlorination – can be effectively removed with UV.

“UV technology is an extremely important part of the water treatment system for many top English clubs’ hydrotherapy pools”

“UV technology is therefore becoming an extremely important part of the water treatment system for many top English clubs’ hydrotherapy pools. By being effective against chlorine resistant micro-organisms and by controlling chloramines, UV is a double-edged sword that has led to Hanovia’s UV systems being installed in many hydrotherapy and swimming pools across the world.

“Not only that, UV is much cheaper and safer than the other non-chlorine treatment method, ozonation. The Victoria Park Swimming Pool Complex in Hong Kong has installed over 20 of our UV systems and they report that, compared to ozone treatment, UV is up to five times cheaper to maintain and takes up only 1/10 of the space.

UV technology is an extremely important part of the water treatment system for many top English clubs’ hydrotherapy pools

UV technology is an extremely important part of the water treatment system for many top English clubs’ hydrotherapy pools

“Running costs are being scrutinized much more by football clubs, as all of them are trying to maximize their profits and minimise unnecessary wastage. By adding UV to their water treatment regimes, clubs are not only getting rid of harmful chlorine by-products, they are also saving money and reducing the amount of chlorine used,” concluded James.

Hanovia UV installations outside the footballing world
Hanovia’s UV systems are already widely used in pools and spas around the globe, from the UK to Australia. One of the most prominent UK installations is Nirvana Spa in Berkshire. Widely regarded as one of the UK’s most prestigious spa facilities, Nirvana has nine pools, each filled with pure spring water drawn from over 200 metres beneath the ground. Each pool is treated with a Hanovia UV system, including the “Celestial” floatation pool, the UK’s largest hydrotherapy pool containing salt imported from Israel’s Dead Sea.

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Hong Kong’s Victoria Park Swimming Pool Complex Using Hanovia UV to Treat Indoor Pools and Rainwater

Ease of use, low running costs and compact size all deciding factors

The Victoria Park Swimming Pool Complex (VPSPC) in Hong Kong has recently installed 21 Hanovia UV disinfection systems to treat the water in three of its indoor pools and to disinfect harvested rainwater. The UV systems were installed by Jardine Engineering Corp, with the help of SmarTech HVAC & Engineering, Hanovia’s local distributor.

The main 50 metre competition pool, a 30 metre multi-purpose pool and an indoor Jacuzzi are now all treated with UV. In addition, recycled rainwater used for cleaning floors and toilet flushing is treated with UV prior to use.

“UV is the ideal technology for swimming pool water treatment”

“This is a very significant project for us and one that shows just what our UV technology is capable of,” commented Ms Ying Xu, Hanovia’s Asia-Pacific Manager. “VPSPC chose Hanovia because, in their opinion, it’s the ideal technology for swimming pool water treatment. UV not only destroys microorganisms but also removes chloramines, resulting in crystal clear water with no accompanying ‘chlorine’ smell.

Hong Kong’s Victoria Park Swimming Pool Complex

Hong Kong’s Victoria Park Swimming Pool Complex

“Our UV systems can also be sized to handle a huge variety of flow rates, from as high as 1700m3/hour in the main competition pool to the small flow rates required for rainwater treatment – this was an essential requirement. I think the final clincher was our fantastic reputation in the swimming pool industry and the hard work of SmarTech.”

Chloramines (also known as combined chlorine) are the unpleasant by-products associated with chlorinated pools; they lie as a vapour over the pool surface and cause eye and skin irritations and have a strong odour which is unpleasant for both bathers and staff. Chloramines not only put people off visiting indoor pools – they can also be a health risk if inhaled regularly. A recent paper in the European Respiratory Journal linked high levels of asthma in children with swimming in outdoor chlorinated pools.

Chloramines are also highly corrosive and are known to cause significant damage to the physical structures of some indoor pools, which can raise safety concerns. Medium pressure UV eliminates the problem of chloramines almost entirely due to its wide wavelength spectrum, which destroys mono-, di- and tri-chloramines. A reduction in chloramines also means less wear and tear on the building and less maintenance and repair bills – as well as a safer building.

UV is ideal as not only does it act as a powerful disinfectant in its own right – minimising the use of chlorine – it also destroys any chloramines produced as a result of the residual chlorination, ensuring a healthier environment for swimmers and staff alike. Less chloramines also means lower water bills as less water is needed to dilute and flush the pool. UV is also a clean technology, with no by-products of its own.

Another major benefit of Hanovia’s UV systems is power switching, which optimises power use only when it’s actually needed. This can have a significant impact on a pool operator’s energy bill.

“Compared to ozone treatment, UV is up to five times cheaper to maintain”

According to the VPSPC management, the UV systems are easy to use and are low-maintenance. “The control system is simple and stable, meaning we don’t need to actively monitor the performance of the UV systems,” said a spokesperson. “We chose Hanovia on the recommendation of other users and have been very pleased with the technology. We do an annual clean of each UV chamber, but this hardly seems necessary as each one remains almost like new. It is also extremely compact.” Compared to ozone treatment, UV is up to five times cheaper to maintain and requires only 1/10 of the space.

Hanovia UV disinfection systems treating indoor pools and rainwater in Hong Kong

Hanovia UV disinfection systems treating indoor pools and rainwater in Hong Kong

The use of UV for rainwater treatment is an interesting and growing application for the technology, particularly in areas of relatively high rainfall such as Hong Kong. Capturing this rain for reuse not only makes environmental sense – freeing up municipal water supplies for domestic and industrial users – it also makes financial sense for the local municipality.

Of the 21 Hanovia UV systems in use at VPSPC, 19 are medium pressure SwimLine systems: eight for the main swimming pool (seven duty, one standby), 11 for the diving pool (10 duty, one standby) and one for the Jacuzzi. One low pressure AF3 UV system is used for rainwater treatment. All the UV systems are located after sand filters in the pool and rainwater treatment processes.

Worldwide applications
Hanovia’s UV systems are used by indoor pool operators around the world, including the UK’s biggest theme park, Alton Towers, where UV treats all the indoor pools; Nirvana Spa, one of the UK’s most prestigious luxury spas; and the Calvary Rehabilitation Hospital in Adelaide, Australia, where Hanovia UV has transformed the water and air quality for the indoor hydrotherapy pool.

The growth of UV
UV is now a well-established method of swimming pool water treatment, from hydrotherapy pools like that at the Calvary Rehabilitation Hospital, to full-sized competition pools. This growth in popularity has been largely due to UV’s reliability and ease of use. Another major factor is the reduced reliance on traditional chemical treatments it affords, particularly chlorine. UV is also highly effective at destroying chlorine-resistant microorganisms like Cryptosporidium and Giardia. Finally – UV saves pool operators money.

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Visit Hanovia at Aquatech Amsterdam!

You’ll learn all about our PQ UV disinfection systems

If you’re going to Aquatech in Amsterdam, who not pop by Hanovia’s booth (Hall , stand ), meet the team and learn how the company’s PureLine and PharmaLine PQ (Performance Qualified) UV disinfection systems ensure the complete biosecurity of process water systems.

Hanovia PureLine and PharmaLine PQ UV disinfection system

Hanovia PureLine and PharmaLine PQ UV disinfection system

Tested and approved by independent experts, The PQ range guarantees 99.999% disinfection at its maximum bioassayed dose. A unique feature is its revolutionary, optimised, absolute intensity UV monitor which means the PQ’s controller automatically corrects the dose calculation as UV transmittance varies – without the need for an external UV transmittance monitor.

Product selection is simple with the entire PQ range: all that’s needed to choose the correct model is the application and the required flow – the appropriate model is then simply selected from the appropriate datasheet. Hanovia will have already specified the necessary dose, chamber geometry, lamp type, surface finish, seal materials and connections that are typically required by that application.

You can also contact Hanovia’s Marketing Manager, Gunvinder Bhogal (gunvinder.bhogal@hanovia.com) in advance to arrange a one-to-one meeting with a UV specialist at the show.

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