WEFTEC Attendees Lined Up to Experience the New Hallett

UV Pure sales team at WEFTEC The UV Pure team exhibited at WEFTEC, an annual industry event showcasing technologies and innovations related to water quality. The 2019 edition was held on 21–25 September in Chicago, IL and attracted more than 20,000 industry professionals. The water quality sector is making great technological progress and UV Pure is leading the charge with our innovative Hallett systems.

Our team was elated to showcase the New generation Hallett launched earlier this year. The highly receptive market to the technological upgrades from generation 1 & 2 Hallett to the New generation Hallett was beyond our expectations.

Strong Interest in the New Hallett

While UV Pure is no stranger to WEFTEC, significant buzz sparked this year with the arrival of our New generation Hallett systems.

Our customers and industry colleagues had familiarity with the first two generations of our UV systems, powered by UV Pure’s award-winning Crossfire Technology. That made it all the more encouraging to receive such positive feedback regarding the new features and technology updates, including:

The new Hallett 1000, our largest model yet, which can handle flows up to 100 US GPM
Improved dual UV sensor array design with quad-sensor models available
Better temperature management with built-in purge valve and available lamp heaters
Color touchscreen interface
Remote start capability

With the New generation Hallett offering such sensible pricing, WEFTEC attendees and customers were able to see the product for what it truly is: innovative, leading and reliable.

High demand and promising opportunities

UV Pure sales team at WEFTEC

There was a stable green light at UV Pure’s booth throughout WEFTEC. Our team members– which included Alex Zammit, Service Manager; Alok Paliwal, Sales Director; David McNamee, Director of Operations; and Bruno Puiatti, Director of Business Development (Clearford) – kept busy with significant conversations and product demos throughout the event.

“It was great to see so many familiar and new faces among those visiting our booth,” said Alex Zammit. “The heavy traffic led to countless conversations explaining the capabilities of the third-generation Hallett and discussing how we can provide solutions to diverse water challenges,” he continued.

In addition to seeing considerable interest in placing orders for Hallett units, we also laid the groundwork for business development opportunities in California, the Northeast US, Western Canada, and Eastern Europe.

Inspiration to keep raising the bar

As always, we found it inspiring to see the innovation on display at WEFTEC and the passion with which our industry colleagues are tackling water quality challenges. WEFTEC reopened our eyes to seeing that when it comes to UV water disinfection, UV Pure is truly a leader.

To learn more about what sparked so much interest our new Hallett, download the New generation Hallett packet .

Raising the Bar for UV Water Disinfection with the New Hallett

Following years of development and testing, UV Pure launched the third generation of our popular Hallett UV water disinfection system. As we ramp up production to meet global demand, we want to share how the new Hallett makes safe water more accessible than ever.

Versatile UV water disinfection for diverse needs

The new Hallett offers the same reliable water disinfection for a wide range of applications. Our new product lineup includes models with varying capacities divided into three categories:

Hallett P models for potable water applications, such as commercial and residential use. The 500PN and 750PN are available with NSF 55A certification. The 1000P is available with EPA validation.
Hallett W models for wastewater applications, including industrial use. The 1000W is available with EPA validation.
Hallett R for reuse applications, such as in agricultural and recreational settings. The 1000R is available with NWRI validation for water reuse.

Third-party validation is pending for the Hallett 500 & 750 R, W models.

Our new Hallett 1000 models have been validated for US Environmental Protection Agency (EPA) performance standards for UV water disinfection to service markets that require EPA validation.

Larger, more powerful units

One of the exciting developments with the third-generation Hallett, is the introduction of high-capacity models. These models can handle flow rates up to 100gpm, up from the previous maximum of 30gpm. For applications requiring higher flows, like municipal water systems, multiple Hallett 1000’s can be connected to allow flows up to 1MGD.

For enhanced performance, these larger units feature amalgam lamps with higher output and an extended lamp life of up to 12,000 hours. Some larger models also come with quad UV sensors to support higher-accuracy measurements of UV dose and UV transmittance (UVT).

Smarter technology and improved design

Incorporating years of feedback from customers, technicians and our in-house experts has helped us make major technology and design enhancements in the new Hallett. Here are a few highlights:

UV dose display to enable hourly, daily, or weekly dose recording
A real-time clock to facilitate troubleshooting with time and date stamps for errors and warnings
A wiper position switch to accurately sense wiper movements in low UVT applications and optimize the wiper parking position
Data logging at 30-second intervals on a USB key
A double door hinge design to allow easier lamp changes and servicing of system components
Improved UV sensor housing to protect sensors during system handling and sensor calibration

Optimized performance and remote operation

Dependable performance is crucial to ensure that our Hallett systems can provide safe water in varying operating environments. That’s why the third-generation Hallett features forced-air cooling to prevent overheating and lamp heaters to enable use in extreme conditions.

Dependability also means that users can trust that their systems are running well, even when they’re not on site. Remote start/stop capabilities mean the new Hallett can remain on standby until a remote signal starts the UV system. The new models also provide more system information to remote operators, allowing them to prevent possible shutdowns ahead of any issues.

Delivering safe, clean water through innovation

Global demand for safe water continues to grow and innovations in water technology are rising to the challenge. As a pioneer in UV water disinfection, UV Pure continues to help customers meet their water needs across diverse industries, applications and markets.

If you would like to learn more about the new Hallett’s technical specifications and how it can meet your water requirements, please contact our business development team.

Safety First: NSF and EPA Certifications for UV Water Disinfection

In this blog post, we examine the role of NSF and EPA certifications for UV water disinfection systems in ensuring water safety and providing peace of mind.

UV systems provide fast-acting, environmentally responsible water disinfection, making them an attractive alternative to chemical water disinfection.

As use of UV water disinfection grows, there is an important question to answer: how do end users know that a system works?

Navigating the certification environment

Given the importance of safe water, it is surprising that neither Canada nor the United States have federal regulations for UV water disinfection in residential settings.

The lack of mandatory standards does not mean there are no standards. For example, NSF International, a globally recognized organization, has created a set of voluntary standards for UV water disinfection technology for home use.

There are different NSF standards depending on the function, size and end use of a product. While not required by law, many manufacturers of UV water disinfection products pursue NSF certification. This shows that their systems meet these minimum performance and safety standards.

The United States Environmental Protection Agency (EPA) is another source of standards for UV water disinfection for public water applications recognized worldwide.

Understanding the certification process

With end users placing their trust in certification, the testing process is understandably rigorous.

Broadly speaking, these are the key elements of the procedure for attaining certification:

The manufacturer submits its UV water disinfection product and detailed documentation to a testing lab.
Professionals at the lab thoroughly review the documentation. They gain a full understanding of how the product is designed and works, including all underlying technology and functional constraints.
They then systematically test the product to ensure alignment between the documentation and actual construction and performance. This includes measuring performance against minimum standards, for example, consistent delivery of a minimum UV dose.
The lab also carries out an inspection of the manufacturer’s production facilities to ensure they are up to standard.
When the product meets all requirements, the product is certified for that specific standard.

NSF logo

Regular retesting and production facility inspections are required for a product to maintain its certification. In addition, re-certification is required any time a manufacturer makes changes to a product and each model must be certified separately.

For NSF certification, testing can be carried out in an NSF International lab or in third-party labs that test based on NSF standards. EPA does not offer its own testing services, so all testing to meet EPA standards is carried out by third-party labs.

Recognizing the value of third-party certification

Third-party certification can help you make an informed decision when purchasing a UV water disinfection system. Safety and reliability are essential no matter where you intend to use this technology. These requirements will be met with certification based on recognized industry standards.

UV disinfection systems intended for use at a public or commercial site (e.g. hospital, campground, hotel, etc.) generally require certification. In these settings, certification is essential for protecting public health, meeting compliance obligations and managing liability.

For residential use, the choice between certified and non-certified systems comes down to personal preference. While non-certified systems may come with a lower price, it is up to the end user to balance this against safety and reliability considerations.

Maintaining high standards at UV Pure

At UV Pure, safe water is our top priority. This commitment is reflected in our adherence to globally recognized safety and technology standards with most of our UV water disinfection products carrying NSF or EPA certifications.

The non-certified products we offer are made to the same high standards as our certified products.

When human health is on the line, there is no room for doubt. NSF and EPA certifications for UV water disinfection systems set the bar high, giving individuals and organizations around the world confidence that their water is safe.

Safe Water Technologies: An Introduction to UV Water Disinfection

Water is used everywhere, from agricultural and industrial to residential and healthcare settings and beyond. Whatever the specific application – whether it’s potable water, wastewater, reuse water, or rainwater – safety is paramount. Here is an introduction to water disinfection. There are many ways to make water safe for use, including various processes for filtration (nano, ultra, and reverse osmosis) and disinfection (chemical and non-chemical). The process or combination of processes used depends on factors, such as the initial water quality, intended end use, logistical and economic considerations.

In this post, we focus on ultraviolet (UV) water disinfection, providing an overview of how it works and how it is evolving.

The water disinfection landscape

In general, there are two main categories of water disinfection technology:

1. Chemical technologies, which include chlorine, ozone, and peracetic acid
2. Non-chemical technologies, which include UV disinfection

uv-water-disinfection-benefits Each technology has a unique set of advantages and disadvantages. For example, chemical disinfection using chlorine is highly reliable and inexpensive, but it poses safety risks in the handling of chlorine and the creating toxic byproducts.

When deciding which technology is best for an application, engineers typically take into consideration a range of factors. Some of those factors include requirements for biocidal efficiency, practicality, reliability, cost, environmental impact and occupational health and safety.

Harnessing the power of UV light

UV water disinfection harnesses the germicidal power of short-wave UV light, specifically at the 254nm wavelength, to damage the DNA of cells and viruses. Applying UV light at this specific wavelength to water renders any microorganisms sterile, thereby disinfecting the water.

The first use of UV water disinfection technology was in 1910. Since then, the use of UV systems has grown as the technology has evolved along with scientists’ understanding of how UV light combats waterborne threats.

Compared to chemical disinfection technologies, non-chemical UV disinfection offers several key benefits in terms of safety and efficacy, including:

Fast-acting, triggering a reaction almost instantly
No disinfection by-products
Safe and chemical-free, avoiding the handling and disposal hazards associated with chemicals
Environmentally responsible technology
Does not alter water chemistry and its constituents, such as pH, taste, odour, colour, etc.
Proven and trusted

Different technologies for UV water disinfection

Since that first application, the sophistication and capabilities of UV water disinfection technology have grown exponentially. While manufacturers offer endless options for UV water disinfection systems, they can all be grouped into two main categories:

Light-in-a-pipe systems. In these systems, pressurized water is exposed to 254nm UV light as it flows through a quartz tube. Light-in-a-pipe systems are advantageous in that they offer greater control over water conditions within the system, like preventing exposure to airborne pathogens. However, they can be costlier to operate given increased energy requirements and maintenance costs.
Channel systems. In these systems, non-pressurized water is exposed to 254 nm UV light as it flows through an open channel. Channel systems are often used to disinfect large water streams, especially wastewater streams, as they can offer lower operation and maintenance costs. However, channel systems are also more vulnerable to airborne pathogens due to their open nature.

As both types of systems have advantages and disadvantages, it’s important for engineers to understand their options to find the best fit for their project.

uv-water-disinfection-benefits

Making water safer with better UV technology

UV systems are already a safe and reliable solution for disinfecting potable water, wastewater, reuse water, and rainwater, only becoming better with continual advances in technology.

Here are a few of the ways in which UV water disinfection technology is becoming smarter and more effective:

UV dose consistency. Maintaining a consistent UV dose ensures the water flowing through a UV system meets the minimum requirements for safe disinfection. Advances in lamp technology allow lamps to be calibrated at a higher intensity initially to maintain the minimum required intensity until the end of their lifespan.
Real-time monitoring. UV systems typically have sensors to indicate when performance falls below minimum thresholds. However, when sensors are poorly calibrated or the cause of an alarm is not clear, it can be a nuisance. Fortunately, smarter sensors and remote real-time monitoring are continually improving reliability while reducing maintenance requirements.
360-degree coverage. Suspended and dissolved solids in water can cause shadowing within a UV disinfection system allowing pathogens to pass through. This challenge is being overcome with smarter system design, such as using dual lamps and reflectors to provide 360-degree UV light coverage that attacks pathogens from all angles.

With some countries actively shifting away from chemical disinfection, due to health and safety concerns, demand for UV water disinfection is growing. Understanding UV water disinfection is becoming increasingly important for engineers around the world.

Five considerations for upgrading an existing UV Pure system

Over 18,000 UV Pure systems are operating worldwide – with many providing years or even decades of reliable disinfection performance in potable, wastewater, and reuse applications. Over time, requirements for some sites can change, leading operators to evaluate different disinfection options to cope with higher flow requirements, changing water quality, emerging pathogenic threats or other factors.

The introduction of UV Pure’s new Hallett product line addresses these upgrade challenges with new technology, higher-capacity flow rates, and lower power consumption while continuing to provide the low-maintenance, highly reliable performance that operators trust from UV Pure.

As the UV Pure team prepares to ship the first of these new Hallett systems in early 2019, we share some answers below to common questions about the new units.

How are the new Hallett units similar to UV Pure’s proven Hallett 15xs and Hallett 30 systems?

The new Hallett units are still powered by UV Pure’s patented Crossfire Technology™, which includes automatic self-cleaning wipers, smart sensors, and built-in purging to prevent fouling of the quartz sleeve by mineral scaling and biofilm. This makes Hallett systems up to 10 times more effective in difficult water applications than conventional UV systems.

How are the new Hallett systems different from existing Hallett units?

The new Hallett units have been completely redesigned with better features and operability. The new systems can handle flow rates of up to 100 gpm (378 L/min) per unit while continuing to provide robust, reliable disinfection under the toughest conditions. For higher flow applications, multiple Hallett units are connected to achieve flow up to 1 MGD (3,785 m3/day).

What happened to UV Pure’s Upstream products?

Upstream systems will be discontinued in early 2019, but UV Pure will continue to offer replacement parts and full product support for years to come. New Hallett NC systems will replace Upstream models for disinfection applications that do not require product certification or validation.

How does UV Pure ensure its systems provide the appropriate level of public health and environmental protection?

UV Pure is offering a new Hallett system that is validated to the US Environmental Protection Agency’s (EPA) UV Disinfection Guidance Manual (UVDGM) protocols, as well as to the National Water Reuse Institute’s (NWRI) UV Disinfection Guidelines for Drinking Water and Water Reuse.

What type of warranty is available for replacement lamps?

UV Pure continues to offer a 12-month limited warranty for LPHO lamps, while amalgam lamps in the new Hallett 1000 model will be covered for 16 months.

Learn More:

Click here or below to download a brochure that answers your questions about the new Hallett, or please contact us here.

Discover the NEW Hallett 1000: Smart new features, same trusted name

Operators can now virtually eliminate concerns about maintenance, active supervision, and performance reliability for on-site UV disinfection at commercial, industrial, and municipal water or wastewater plants up to 1 million US gallons per day (3,785 cubic metres per day). How?

UV Pure’s new Hallett™ 1000 systems have more capacity than ever, plus the performance, power, and smart technology you expect from UV Pure.

The new Hallett 1000 model builds on the success of UV Pure’s proven Hallett 30 system and patented Crossfire Technology™. This technology uses a unique elliptical reflector design with dual air-mounted lamps to deliver a high UV dose and target pathogens from 360 degrees.

New and improved features of the Hallett 1000

Longer lamp life:

Each Hallett 1000 unit is equipped with high-output, long-life low-pressure high-output (LPHO) amalgam UV lamps that are powered by a UL-certified pre-heat ballast with a soft start. This helps extend their operating life to provide maximum UV output for up to 12,000 hours, or approximately 16 months.

Larger capacity system, same reliable disinfection:

The new Hallett 1000 units can handle flow rates of up to 100 gpm (378 L/min) per unit while continuing to provide robust, reliable disinfection under the toughest conditions. For higher flow applications, multiple Hallett 1000 units are connected with a prefabricated pipe manifold to achieve flow up to 1 MGD (3,785 m3/day). This modular design provides built-in redundancy and ensures the highest level of protection since one or more Hallett systems can be shut down for service while others continue to operate.

Space-saving, easy-access vertical design:

The new Hallett 1000 systems incorporate a newly designed aluminum outer shell with side hinges that can easily be flipped open to access the internal components. This design even further reduces the Hallett installation space requirements on a wall or as part of a vertical-mounted manifold system, and allows operators to quickly change lamps without having to pull them from the fragile quartz tube.

Contact us to discuss how UV Pure’s new Hallett systems can help you meet your water disinfection needs.

Cottage owner ensures safe well water with low-maintenance UV Pure system

System Design Specifications

Application: Potable water treatment
Location: Cottage in Kawartha Lakes, Ontario
Commissioned: September 2017
System: 1 – UV Pure Upstream NC 10-50
Flow: 10 gpm (38 L/min)
Minimum UV dose: 40 mJ/cm²
Minimum UVT: 50%

Ryerson Urban Water’s Executive Director, Nick Reid, recently purchased a cottage in the Kawartha Lakes to provide him and his family worry-free escapes from the city. However, unlike municipal water systems that use a multi-barrier approach to ensure water safety, Reid knew that many well water users have no protective barrier before the tap. That is why he opted to install a UV disinfection system for an extra measure of safety against any microbiological threat that could arise if surface water made its way into his well.

Because the property had been vacant and the well was unused for an extended period, Reid took steps to chemically disinfect and flush the well. This helped to improve the water quality but did not provide residual protection. To ensure he never had to worry about water quality, Reid wanted a UV disinfection system that would provide a high level of safety for his drinking water with minimal maintenance. So he decided to install a UV Pure Upstream NC 10‑50 unit in September 2017.

“I could have gone to a big box store and bought a conventional, off-the shelf UV disinfection unit,” says Reid, “But I wasn’t confident that those systems could provide consistent, protection without frequent cleaning. UV Pure has an excellent reputation and their Upstream system has built-in self-cleaning capabilities, which assures me that our water is disinfected and safe to drink.”

The compact, point-of-entry system was quickly installed in the basement of Reid’s cottage and operates on standard household voltage. Well water first passes through an activated charcoal filter and then a manganese dioxide cartridge. The final disinfection is provided by the Upstream unit before the water is distributed throughout the cottage.

Crossfire Technology provides reliable disinfection for drinking water

“UV Pure’s unique Crossfire Technology™ was an important consideration for me when selecting a UV disinfection system for my cottage,” Reid says. “Dual smart UV sensors continually monitor UV lamp output and water quality, ensuring the highest level of treatment and health protection. If either of these parameters does not meet the set specifications, the systems will sound an alarm, notify me and automatically shut down.”

The Crossfire Technology incorporates two UV lamps mounted in air and elliptical reflectors that enable reuse of UV energy. This design targets pathogens from 360 degrees to provide inactivation of pathogenic organisms such as E. coli, Giardia and Cryptosporidium. This also eliminates the risk of shadowing which is more likely in conventional systems and could allow live pathogens to pass through.

Watch this video to learn more about UV Pure’s Crossfire Technology:

Farm provides safe drinking water to livestock with help of UV Pure systems

System Design Specifications

Application: Potable water treatment
Location: Cooper Farms – Ohio, USA
Commissioned: 20019
System: 4 – UV Pure Upstream NC 15-50
Flow: 15 to 60 gpm (57 to 227 L/min)
Minimum UV dose: 40 mJ/cm²
Minimum UVT: 50%

Inadequate groundwater supplies prompted Cooper Farms in Ohio to begin harvesting and reusing rainwater in 2009 as a supplement to its potable water supply and to reduce its demand on the local groundwater system.

Since one of the key uses for the treated rainwater is to provide drinking water for livestock, Cooper Farms started exploring options to implement a multi-barrier treatment process with UV disinfection that could provide pure, safe water. Rainwater can acquire a multitude of contaminants and pathogens as it is collected, so treating it to potable water quality standards is essential for preventing disease outbreaks and death among livestock.

Upon the recommendation of Flag City Water Systems, a local UV Pure representative, Cooper Farms installed a purification system that includes chemical-free UV Pure disinfection for its ability to handle low UV transmittance (UVT) conditions, a typical characteristic of the rainwater, which is collected and stored in a retention pond at the site.

UV Pure disinfection enhances system performance and provides peace of mind

“We worked closely with UV Pure to design and install a water treatment system that meets Cooper Farms’ needs,” says Brad Longberry, CEO of Flag City Water Systems. “Even after pond water is filtered, UVT can still be quite low, so the ability to consistently deliver a high UV dose under these conditions was a very important consideration for us when selecting UV Pure’s Upstream systems with Crossfire Technology for this application.”

The system at Cooper Farms is designed to treat source water to a potable standard. Currently, a small amount of well water is pumped into a retention pond which is supplemented by rainwater. The blended stream first passes through a microfiltration system that uses a specialized five-micron filter to remove organics and then dosed with chlorine.

“Once chlorination is complete, the water requires additional purification which is provided by UV Pure’s Upstream systems,” Longberry says. “UV disinfection inactivates pathogens like Cryptosporidium, Giardia and Legionella that can be resistant to chlorine. Proper UV disinfection also provides a second layer of protection to enhance the system’s performance and reliability since the changes for a potential disease outbreak are always very real for Cooper Farms.”

The final disinfection in each system is performed by one to four Upstream NC 15-50 systems that are each sized to handle flows from 15 to 60 gpm (57 to 227 L/min) of water, with UVT as low as 50%.

Crossfire Technology targets pathogens from every angle

UV Pure’s Crossfire Technology incorporates elliptical reflectors that reuse light energy to deliver a high UV dose and target pathogens from 360 degrees.

Dual smart UV sensors in the Upstream systems continually monitor UV lamp output and water quality to ensure the highest level of treatment is consistently delivered to protect Cooper Farms on an ongoing basis. If either of these parameters does not meet the set specifications, the systems will sound an alarm, notify the operator and automatically shut down.

“Overall, our partnership with UV Pure has been excellent,” Longberry says. “As a UV Pure distributor for the last 20 years, Flag City has received great technical support and fantastic systems in a timely fashion.”

Learn more about UV Pure’s Crossfire Technology.

For UV Pure sales and service in Ohio, contact Flag City Water Systems.

Contact information:
1705 Romick Parkway
Findlay, Ohio 45840
419-423-8082
info@flagcitywater.com
www.flagcitywater.com