Berson UV News - from Halma PR - visit www.bersonuv.com

New ‘plug-and-play’ modular system is 100% pre-engineered for wastewater applications

UV disinfection specialist Berson (www.bersonuv.com) has launched its new OpenLine range of open channel UV wastewater treatment systems. 100% pre-engineered for wastewater applications, the OpenLine range is specifically designed to treat secondary wastewater flows of up to 95,000 m3/day (approx. 4,000 m3/hour) over a wide range of UV transmittances. It utilises a new type of low pressure, high output (LPHO) amalgam lamp that offers stable UV output over its entire operating life of up to 14,000 hours.

Berson’s new OpenLine open channel UV wastewater disinfection system

Photo 1: http://www.halmapr.com/aquionics/openline_1.jpg (620 KB)
(Photo caption 1: Berson’s new OpenLine open channel UV wastewater disinfection system)

The automatic, pneumatic wiper on the UV lamps of Berson’s new OpenLine UV wastewater disinfection system

Photo 2: http://www.halmapr.com/aquionics/openline_2.jpg (785 KB)
(Photo caption 2: The automatic, pneumatic wiper on the UV lamps of Berson’s new OpenLine UV wastewater disinfection system)

The OpenLine range’s flexible, modular design means simple installation and maintenance, making it the ideal open channel UV system for municipalities with low flow requirements. Inspired by Berson’s successful InLine+ range of closed vessel UV systems, the OpenLine 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.

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. Wiper frequency is also 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 customised by the user to suit their requirements. Lamp replacement and other routine maintenance tasks are also straightforward and can usually be carried out by on-site staff.

Berson is one of the few non-German UV system suppliers capable of providing a complete range of UV systems with capacities between 10 – 10,000 m3/hour, certified to the newest German DVGW* norm, W294, Parts 1, 2 & 3 – the highest standard currently possible in the world. The company’s UV systems are also validated to the UVDGM** and NWRI*** (for reuse applications) in the USA and Canada.

* DVGW (German Technical and Scientific Association for Gas and Water) is the body responsible for industry self-regulation in the German water and gas and water supply industry and its technical rules are the basis for safety and reliability.

** USEPA UV Disinfection Guidance Manual (UVDGM). The validation certifies the use of the systems for the Long Term 2 Enhanced Surface Water Treatment Rule (LT2ESWTR).

*** National Water Research Institute (www.nwri-usa.org) / American Water Works Research Foundation (www.waterresearchfoundation.org).

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UV (ultraviolet) disinfection specialist Berson UV-techniek (www.bersonuv.com) will have a booth at this year’s IWA World Water Congress and Exhibition in Montréal, Canada. Organised by the International Water Association (IWA), the high-profile event attracts thousands of water professionals and organisations from across the globe. In previous years has been held in Vienna, Beijing, Marrakech, Melbourne, Berlin and Paris.

Berson Appearing at IWA World Water Congress in Montréal

“The IWA World Water Congress and Exhibition attracts some of the most influential figures in the global water industry,” comments Berson’s Managing Director Paul Buijs. “Over 3,000 delegates and 1,500 trade visitors are expected to attend the Montréal event, and as we are leaders in the use of UV for water and wastewater treatment, we considered it important to be there. We believe that the unique combination of congress and trade fair makes IWA 2010 the ideal platform for us to present our UV technologies and latest research findings, particularly in the areas of water and wastewater reuse,” added Paul.

Berson’s booth will be located in the Netherlands Water Pavilion, which will also feature many of Holland’s other leading water companies. Holland is one of the nations most at risk from the environmental effects of climate change so, not surprisingly, it is also one of the most forward-thinking in terms of environmental technology.

Based in the Netherlands, Berson specialises in producing both closed vessel and open channel UV systems for drinking water and wastewater treatment. Berson, along with sister UV companies Hanovia Limited in the UK and Aquionics Inc in the USA, is part of the Fluid Technology Division of Halma p.l.c. (www.halma.com).

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Berson UV-techniek (www.bersonuv.com)will be exhibiting its world-leading UV disinfection technology at IFAT Entsorga 2010 in Munich in September. Berson’s UV systems are used worldwide for the non-chemical disinfection of drinking water and wastewater. The company is also leading the field in research into the reuse of both municipal and industrial wastewater. Berson will be located at booth 401 in Hall A3.

IFAT Entsorga is the world’s leading trade fair for water, sewage, waste and raw materials management.

Berson's OpenLine open channel UV disinfection system for secondary treated wastewater

Based in the Netherlands, Berson specialises in drinking water and wastewater applications, including reuse. Its range of closed vessel and open channel UV systems are used globally, from the USA to Australia.

The company recently supplied its InLine+ UV systems to the world’s largest backwash water reuse installation at Spannenburg in the Netherlands. It is also involved in advanced oxidation experiments with the City of Cincinnati Waterworks in the USA and the city of Zwolle in the Netherlands.

Berson will be showing its InLine+ range of closed-vessel UV systems and its new OpenLine range of open channel systems at IFAT Entsorga. Capable of treating water and wastewater flows as high as 5000 m3/hour, the InLine+ range has a unique design where the UV lamps are angled at 90o to the water flow. This not only means a more effective distribution of UV light to the passing fluid, it also means a much smaller footprint, allowing easy installation and servicing. The OpenLine range has been designed to treat secondary wastewater flows over a wide range of flows and UV transmittances. Employing a new type of LPHO (low pressure high output) amalgam lamp, the OpenLine offers a neatly packaged solution that is pre-engineered for wastewater applications.

IFAT Entsorga 2010
September 13 – 17, 2010
New Munich Trade Fair Centre
Hall A3, Booth 401

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1.25 million m3/year of water is now recycled as drinking water at Dutch groundwater facility

Berson’s UV systems are being used to disinfect reused backwash water from sand filtration units at the Spannenburg groundwater drinking water facility in the Netherlands. Up to 5% of the produced drinking water at the Spannenburg plant (1.25 million m3/year) is used to backwash the sand filters and, until recently, this water was simply discarded. Following the installation of two Berson InLine+ UV systems this water can now be reused as drinking water, producing considerable cost savings.

Peter Sjoerdsma, a Vitens process engineer, with one of the Berson InLine+ medium pressure UV disinfection systems at the Spannenburg groundwater drinking water facility

Photo 1: http://www.halmapr.com/berson/Spannenburg_1343.jpg (1.2 MB)
(Photo caption: Peter Sjoerdsma, a Vitens process engineer, with one of the Berson InLine+ medium pressure UV disinfection systems at the Spannenburg groundwater drinking water facility)

The plant room at the Spannenburg groundwater drinking water facility, showing one of the Berson InLine+ medium pressure UV disinfection systems

Photo 2: http://www.halmapr.com/berson/Spannenburg_1350.jpg (1.1 MB)
(Photo caption: The plant room at the Spannenburg groundwater drinking water facility, showing one of the Berson InLine+ medium pressure UV disinfection systems)

Berson supplied two InLine 250+ medium pressure UV systems, each disinfecting up to 100m3/hour of backwash water. They are positioned after the ultra filtration units and before the sand filtration. The UV systems produce a 2 log reduction of CFUs* with a water transmittance (T10**) value of 63.1%.

Operated by Vitens, the Netherlands’ largest water utility, the facility 35 kilometres south of Leeuwarden in the north of Holland is the largest groundwater drinking water facility in the Netherlands and is also believed to be the largest backwash installation in the world. The contractor for the backwash project was Logisticon Water Treatment b.v.

“A year since it was commissioned the Berson UV systems are working very well and are completely reliable,” comments Peter Sjoerdsma, one of Vitens’ process engineers. “The reused backwash water is completely biologically reliable and we are totally confident to use it as drinking water. We opted for UV as it is a clean technology that does not require the use of chemicals. Berson’s UV technology is already widely used by Vitens so we have good experience of their systems.”

The Spannenburg drinking water plant supplies over 300,000 people spread over a large, mainly rural area of northern Holland. Because the installation has been so successful Berson has now also been awarded the contract for an identical application in Zwolle, also operated by Vitens.

An important feature of the Berson UV technology installed at Spannenburg is its UV-Tronic+ V5 PLC controller, the latest version of Berson’s UV-Tronic controller range. Based on a rugged industrial PLC and with an RS485-based ModBus interface, the UV-Tronic+ V5 links to the site’s SCADA control system and allows users to set up and manage the UV system’s operating parameters to exactly match their requirements.

Berson UV is one of the few non-German UV system suppliers capable of providing a complete range of UV systems with capacities between 10 – 10,000 m3/hour, certified to the newest German DVGW*** norm, W294, Part 1, 2 & 3 – the highest standard currently possible in the world.

* Colony Forming Units

** A simple indication of the absorbance of UV light by water is the transmission value of the water (T10), which is the total value of all absorbing components in the water, such as suspended organic materials and minerals such as iron and magnesium – both dissolved and un-dissolved. If the transmission value is known, the calculation of UV intensity in the UV reactor can be calculated and the size of the reactor determined. Depending on the size or volume of the reactor, the UV dose can then be calculated

*** DVGW (German Technical and Scientific Association for Gas and Water) is the body responsible for industry self-regulation in the German water and gas and water supply industry and its technical rules are the basis for safety and reliability

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- £100m earmarked for acquisitions -

Halma p.l.c. (www.halma.com), the leading global safety, health and sensor technology group and parent company of Berson, has announced record results with profits up 9% to £86m and revenue rising by 1% to £459m. The UK-based group has posted strong financials to raise shareholder dividends by 7%, the thirty-first consecutive year of increases greater than 5%. The company plans to augment its organic growth efforts through acquisition of complementary technology companies, as it has done for many years.

Halma’s subsidiaries operate in three main market sectors: Health and Analysis (which includes Halma’s fluid technology companies), Infrastructure Sensors, and Industrial Safety, creating shareholder value with consistent organic growth and sound acquisitions. Halma companies operate as independent entities under the day-to-day direction of their local management, while reaping the capital and network benefits of a larger multi-national parent.

The company is seeking successful and profitable companies that are closely allied to any of its current market sectors, although fluid technology is a particular focus. It has £100m earmarked for acquisitions.

Halma’s fluid technology companies make critical components such as pumps, valves, probes, connectors and tubing used by scientific and medical diagnostic instrument manufacturers for demanding fluid handling applications. Its companies also manufacture dryers, humidifiers, and sample conditioning components and equipment used in medical, environmental and scientific analytical equipment. Its UV water treatment equipment is used all over the world in a wide variety of applications for progressive, non-chemical disinfection and microbiological control.

“There continues to be strong demand for our fluid technology products, both on the component and the water treatment side,” explains Chuck Dubois, Divisional Chief Executive of Halma’s Fluid Technology Division. “Scientific and medical diagnostic fields are expanding with new equipment and technology. Water resources and access to safe, clean water are global concerns. We are looking for companies with products and technologies that can meet these demands. The capital, marketing and technical resources Halma can offer, to the right company, can enable these technologies to reach their full market potential.”

Headquartered in the United Kingdom, Halma is a holding company of approximately 35 worldwide subsidiaries that develop and manufacture products that protect lives and improve quality of life for people worldwide. The company’s business groups focus on industrial safety, health and analysis and infrastructure sensors.

To present potential acquisitions opportunities, please contact Chuck Dubois, Chief Executive, Fluid Technology Division (chuck.dubois@halma.com), Tel: + 1 203 731 0200.

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UV disinfection specialist also presenting paper at IUVA Conference

UV (ultraviolet) disinfection specialist Berson UV-techniek will be exhibiting at this year’s Singapore International Water Week (SIWW) summit. In addition to showcasing its world-leading UV disinfection technology, Berson will also present a paper at the IUVA conference, which runs concurrently with SIWW.

Berson Exhibiting at Singapore International Water Week

“In just its third year SIWW has become the most important regional water meeting, attracting some the most influential figures in the global water industry,” comments Berson’s Managing Director Paul Buijs. “Sustainable Cities is the theme of this year’s summit, and as we are leaders in the use of UV for water and wastewater treatment for urban areas, we considered it important to be represented. We also feel that the IUVA Conference, which runs at the same time, is the ideal platform for us to present a paper entitled ‘Lessons learned from 10 years of municipal UV water reuse treatment in the US’,” Paul adds.

Berson’s booth will be located in the Netherlands Water Pavilion, which will also feature many of Holland’s other leading water companies. Holland is one of the nations most at risk from the environmental effects of climate change so, not surprisingly, it is also one of the most forward-thinking in terms of environmental technology.

Based in the Netherlands, Berson specialises in municipal applications and will be showing its InLine and InLine+ range of closed-vessel UV disinfection systems. Capable of treating water and wastewater flows as high as 5000 m3/hour, they have a unique design where the UV lamps are angled at 90o to the water flow. This not only means a more effective distribution of UV light to the passing fluid, it also means a much smaller footprint, allowing easy installation and servicing.

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Met de nieuwe controller kunnen UV systemen exact aan klantenwensen voldoen

Berson’s nieuwe UV-Tronic+ V5 PLC controller kan verbonden worden met het SCADA- controlesysteem van de procesinstallaties, waardoor gebruikers in staat gesteld worden de procesparameters van het UV-systeem op te zetten en te managen zodat exact aan hun behoeften wordt voldaan. De meest recente versie van Berson’s UV-Tronic controller serie, de UV-Tronic+ V5 is gebaseerd op een robuuste industriële PLC en bevat een Modbus interface gebaseerd op RS485.

Berson’s UV-Tronic+ V5 PLC Controller kan tot zes UV desinfectie reactoren reguleren

Oudere versies van de UV-Tronic zijn reeds in staat om meerdere stromen en UV-reactoren  te controleren, een zeer nuttige eigenschap bij variabele waterparameters zoals fluctuaties in debiet of UV-transmissie. Hierdoor wordt het mogelijk afzonderlijke UV-reactoren uit productie te nemen wanneer die niet nodig zijn, zodat energieverbruik gereduceerd wordt.

De nieuwe UV-Tronic+ V5 heeft verder verbeterde eigenschappen waardoor het mogelijk is om per UV-reactor afzonderlijk het vermogensniveau van tot zes UV reactoren gelijktijdig traploos te reguleren, zoat het energieverbruik nog verder beperkt wordt. Verdere nieuwe eigenschappen zijn sterk uitgebreide monitoring- en controlecapaciteiten via Modbus, meer handmatige controlefuncties voor meer gemak bij onderhoud en reparatie en de capaciteit om UV-sensors afzonderlijk te kalibreren tijdens operatie in de Duitse DVGW-modus. Een ingebouwde modem kan worden gebruikt voor monitoring en diagnose op afstand alsmede voor software upgrades.

Indien de UV-sensoren binnen de UV-reactor een daling in het UV-stralingsniveau waarnemen, zorgt de UV-Tronic+ V5 als eerste reactie dat wissers automatisch geactiveerd worden om de beschermende kwartsbuizen om de UV lampen schoon te maken. De wissers verwijderen afzettingen die zich op de kwartsbuizen afgezet kunnen hebben, zodat een minimaal UV-stralingsniveau in de UV-reactor gewaarborgt blijft. Een belangrijk voordeel van geautomatiseerd wissen is dat er geen reinigingschemicaliën nodig zijn, een eigenschap die vooral van belang is wanneer drinkwater gedesinfecteerd wordt.

“De UV-Tronic+ V5 is een zeer nuttige functionaliteit van het Berson UV-systeem,” zegt Bob Clifforde, elektricien bij Cambridge Water in het Verenigd Koninkrijk, waar het nieuwe systeem wordt gebruikt. “Door ons in staat te stellen elke UV-reactor afzonderlijk te reguleren is niet alleen de bediening veel eenvoudiger, maar zijn ook onze operatiekosten significant verminderd.”

Berson UV-Techniek is een van de weinige leveranciers van UV-systemen die in staat is om een volledige range aan UV-systemen te leveren met UV-reaktorcapaciteiten variërend tussen de 10 en  5.000 m3/uur, die gecertificeerd zijn volgens de laatste versie van de Duitse DVGW* norm  W294, Deel 1, 2 & 3 – op het ogenblik de meest scherpe drinkwaternorm ter wereld.

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New controller allows UV systems to precisely match customers’ requirements

Berson’s new UV-Tronic+ V5 PLC controller links to a UV disinfection system’s SCADA control system and allows users to set up and manage the UV system’s operating parameters to exactly match their requirements. The latest version of Berson’s UV-Tronic controller range, the UV-Tronic+ V5 is based on a rugged industrial PLC and with an RS485-based Modbus interface.

Berson’s UV-Tronic+ V5 PLC Controller can Control up to Six UV Disinfection Chambers Simultaneously

Older versions of the UV-Tronic already had the capacity to control multiple streams and treatment chambers, a particularly useful feature where treatment plants may have variable water parameters such as flow or transmittance as it allows shutdown of individual UV chambers when not required, reducing power consumption.

The new UV-Tronic+ V5 has enhanced features which makes it possible to individually control the power level of up to six UV disinfection chambers simultaneously to suit the flow conditions for each stream, thus further minimising power consumption.

In addition, the controller can be programmed to calculate the required power setting depending on whether it is validated to DVGW*, UVDGM** or Berson’s default dose control settings. Software is currently being written which will also allow it to operate to NWRI*** parameters. The device can control conventional electro-magnetic ballas as well as Berson’s own electronic ballast.

Additional new features include greatly extended monitoring and control via Modbus, increased manual control functionality to ease maintenance and servicing, and the capacity to individually calibrate UV sensors when running in DVGW mode. A modem can also be used to provide remote monitoring and diagnosis and for software upgrades.

In addition, when UV monitors on the inner wall of the UV chamber register a fall in the UV level, the UV-Tronic+ V5 is designed to trigger automatic wipers on the quartz sleeves protecting the UV lamps. The wipers remove any built-up deposits on the sleeves, ensuring uninterrupted protection against microbial contamination. A major benefit of automated wiping means no chemicals are required for cleaning, an especially important feature when it comes to drinking water disinfection.

“The UV-Tronic+ V5 is a very useful feature of the Berson UV system,” comments Bob Clifforde, an Electrical Engineer at Cambridge Water in the UK who uses the new system. “By allowing us to control each UV chamber individually it not only greatly simplifies operations but has also reduced our operating costs.”

Berson UV is one of the few non-German UV system suppliers capable of providing a complete range of UV systems with capacities between 10 – 10,000 m3/hour, certified to the newest German DVGW norm, W294, Part 1, 2 & 3 – the highest standard currently possible in the world.

* DVGW (German Technical and Scientific Association for Gas and Water) is the body responsible for industry self-regulation in the German water and gas and water supply industry and its technical rules are the basis for safety and reliability.

** USEPA UV Disinfection Guidance Manual (UVDGM). The validation certifies the use of the systems for the Long Term 2 Enhanced Surface Water Treatment Rule (LT2ESWTR).

*** National Water Research Institute (www.nwri-usa.org) / American Water Works Research Foundation (www.waterresearchfoundation.org).

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UV disinfection specialist Berson has appointed Paul Buijs its new Managing Director. Paul, who has over 15 years’ experience in the water treatment industry, joins Berson from Global Membrains, a water industry consultancy with business throughout Europe and Middle East, where he most recently served as Director. Prior to Global Membrains* he worked for GE Water and Process Technologies, GE Betz and Kiwa Water Research, all companies focused on water treatment using various technologies.

UV Disinfection Specialist Berson Appoints Paul Buijs as new Managing Director

Photo: http://www.halmapr.com/berson/PaulBuijs.jpg (725 KB)

Paul has a Masters Degree in Chemical Engineering from the Eindhoven University of Technology in the Netherlands. He also received a number of leadership and service awards from GE Water and was granted a patent for a new process to improve ultrafiltration performance.

Commenting on his appointment Paul said, “With many exciting developments under way I am excited to be part of Berson’s continuing growth. I believe that the company’s strong scientific knowledge base and extensive field experience worldwide means we are exceptionally well placed to expand the use of our world-beating UV water treatment technology.”

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Caribbean island opts for UV instead of chlorine as part of its ‘anti chemical’ policy

The Caribbean island of Aruba situated just off the coast of Venezuela has a semi-arid climate, caused by the north-westerly trade winds dropping most of their rain on the Windward Islands to the north-east. A popular tourist destination because of its dry, sunny climate, the island has experienced rapid growth in recent years, putting severe stress on its water supply system. As there are virtually no naturally occurring sources of fresh water on the island, it relies exclusively on the world’s second largest desalination plant to supply its population with potable water.

Berson UV Chosen to Disinfect Aruba’s Drinking Water and Wastewater

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(Photo caption: A Berson InLine UV disinfection system installed on one of Aruba’s drinking water storage tanks)

The desalination plant is situated in Balashi, the site of old gold mill ruins and is located inland of Aruba’s capital, Oranjestad. Operated by Water-En Energiebedrijf Aruba N.V.  (W.E.B.), the plant was commissioned in February 2000 and produces over 40 million litres (over 11 million gallons) of water per day. Occupying a space equivalent to half the length of a football or soccer field, the plant consists of plate heat exchangers in titanium installed in a vessel of considerable size. It was constructed in three 20 metre (67 foot) sections in Germany and shipped to Aruba, where it was assembled.

As part of its ‘non-chemical’ approach to water treatment, W.E.B. opted to use ultraviolet (UV) disinfection technology instead of chlorine to provide an additional treatment step for drinking water prior to distribution. UV technology from Dutch company Berson UV-techniek was selected for the project. Berson was chosen not just because it is based in the ‘home country’ (Aruba is an autonomous region within the Kingdom of the Netherlands) but because it is at the forefront of UV technology for municipal applications globally.

Berson’s customer service manager Danny van Kuringen with some of the Berson InLine UV disinfection systems at Aruba’s Balashi water treatment facility

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(Photo caption: Berson’s customer service manager Danny van Kuringen with some of the Berson InLine UV disinfection systems at Aruba’s Balashi water treatment facility)

A total of ten Berson InLine+ UV systems are currently installed on the island, with more planned. Seven are used for disinfecting drinking water prior to distribution and a further two are used for treating wastewater prior to discharge. In addition, one system is used by the Dr Horatio Hospital to treat incoming drinking water as a precaution against Legionella.

Drinking water treatment

Following the desalination process the water passes through five UV systems before being transported to a number of large storage tanks situated at elevated locations around the island. The five UV units are the last step in the treatment process prior to distribution. Each UV unit disinfects 400m3 of water per hour, rising to 600m3/h during peak flow conditions. No chlorine is used at any stage of water the treatment process. The UV systems are controlled by Berson’s ECtronic+ and UVtronic+ microprocessors – allowing the units to be linked to control systems.

Two of the storage tanks situated around the island are also fitted with UV systems, which provide an additional disinfection step prior to distribution. One of these UV-fitted storage tanks is situated in the harbour and supplies cruise ships with UV treated drinking water. It is expected that all the tanks will eventually be fitted with UV systems.

Commenting on the installations, Project Manager Mr Ruiz says, “Chlorine was originally considered as an alternative to UV but was rejected after concerns over costs and safety. W.E.B. also has an anti-chemical policy”.

Wastewater treatment

Aruba is currently served by two wastewater treatment plants (WWTPs), one at Parkietenbos on the west coast and another Zeewijk on the east of the island. The Parkietenbos WWTP processes wastewater brought in by septic tank trucks from the whole of the island, while the Zeewijk WWTP treats wastewater from San Nicolas, Aruba’s second largest city, located in the south of the island.

Both WWTPs use UV as a final treatment step prior to discharge, following various filtration and treatment steps including grit and fat removal, screening, SBR (sequencing batch reactor) biological treatment and tertiary disc-type filtration. The Berson InLine+ UV system at Parkietenbos treats up to 75m3/hour while that at Zeewijk treats up to 200m3/hour.

The quality of the final effluent from both sites is so good that some of the wastewater is used to irrigate two golf courses on the island.

Strong interest in UV for other applications

Commenting on the UV installations, Berson’s Managing Director Andrew Clark says, “Since we delivered the UV systems to W.E.B. there has been a lot of interest in our non-chemical water treatment technology from other industry sectors on the island. In particular, a lot of businesses are interested in using UV-treated wastewater for hosing down their buildings. It is very dusty on Aruba, so keeping the exterior of buildings clean is actually a bit of a problem – using desalinated potable water is expensive and wasteful, so high quality effluent is a viable alternative.”

Berson is currently one of the few non-German UV system suppliers capable of providing a complete range of UV systems with capacities between 10 – 10,000 m3/hour, certified to the latest German DVGW*** norm, W294, Part 1, 2 & 3 – the highest standard currently possible in the world. The systems are also fully validated in accordance with the USEPA UV Disinfection Guidance Manual (UVDGM).

* Biochemical oxygen demand
** Total suspended solids
*** DVGW (German Technical and Scientific Association for Gas and Water) is the body responsible for industry self-regulation in the German water and gas and water supply industry and its technical rules are the basis for safety and reliability.

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