Product
To determine the appropriate UV system, we need the following information: (1) UV Transmittance (UVT) at 254nm, (2) maximum and minimum flow rates, (3) required UV dose, (4) target pathogens, and (5) key water quality parameters. Additionally, a treatment process flow diagram helps us understand the existing setup. Additional unformation may be required for specific applications such as Dechlorination and AOP.
Yes, you can use your existing flow meter if it provides a reliable reading and there are no diversions between the flow meter and the UV system. It is crucial that the flow signal representing the flow via the UV with no risk of measuring the flow while the UV is isolated and the flow is via by pass. The flow meter sends a signal to our technology, which adjusts in real-time to ensure the required dose is met as the flow varies. For applications with a constant flow, a flow switch may be used instead of a flow meter to detect flow stoppages reliably.
Ultraviolet Transmittance (UVT%) measures how much UV light at 254 nm passes through 1 cm of water. To measure it we use a spectrophotometer. For best results you will need the spectrophotometer (we recommend using a portable one), Quartz cuvettes, and reference water (can be distilled water).
1. Prepare the Spectrophotometer
Turn on the spectrophotometer and allow it to warm up according to the manufacturer’s instructions.
Set the wavelength to 254 nm, which is the standard for UVT measurement.
If you are using a mobile spectrophotometer, it is already set to 254 nm.
2. Calibrate the Instrument
Use a clean cuvette filled with deionized or ultrapure water as the reference (blank).
Insert the blank into the spectrophotometer and set the instrument to 100% transmittance (or 0 absorbance).
This establishes the baseline for your measurements.
3. Collect the Sample
Obtain a water sample representative of the system you are analyzing.
4. Prepare the Sample
Rinse a clean cuvette thoroughly with the water sample.
Fill the cuvette with the sample, ensuring no air bubbles are trapped inside, as they can affect readings.
Wipe the outside of the cuvette with a lint-free cloth to remove fingerprints or smudges.
5. Measure the Sample
Insert the sample cuvette into the spectrophotometer.
Record the transmittance value displayed on the spectrophotometer.
6. Document the Results
Note the UVT percentage and any relevant conditions (e.g., temperature, time, sample source).
Perform multiple measurements to ensure consistency and reliability.
7. Rinse the Cuvette with the Reference Water, Clean and Dry
If no UVT% test sample is currently available, you have a few options: Atlantium personnel can bring a portable UVT% meter for on-site testing during a scheduled visit. Alternatively, you can send a sample to your Atlantium salesperson for testing. Please ensure the sample is in a 100 ml plastic bottle with a sealed cap, labeled with the sample source. Most samples do not require refrigeration or special packaging; however, avoid using whirlpaks, as they may leak.
UVT%: Measures UV light passing through water, indicating UV-absorbing contaminants.
Turbidity: Measures water cloudiness due to suspended particles, reported in NTU.
They measure different aspects of water quality and rarely can be correlated.
HOD UV Technology
Low-Pressure (LP) UV:
• Emits a single wavelength (253.7 nm).
• Operates at lower temperatures and is generally more energy-efficient than MP lamps.
• Produces less UV light overall, requiring more lamps in the system for effective coverage.
• Limited versatility in handling a variety of contaminants, as it does not damage microorganisms’ recovery mechanisms.
Medium-Pressure (MP) UV:
• Emits a broad UV spectrum (200-415 nm), covering a wider germicidal range.
• Damages both the DNA and repair mechanisms of microorganisms, achieving more thorough disinfection.
• Effective across a wide range of contaminants and complex organisms, including viruses and biofilms, which LP UV struggles to inactivate.
• Operates at higher temperatures with higher UV intensity per lamp, requiring fewer lamps in the system for equivalent coverage.
Key Differences:
• MP UV is generally preferred for complex applications, such as Advanced Oxidation Processes (AOP), where wavelengths beyond 254 nm are required for optimal disinfection.
Research indicates that MP UV is often superior for applications needing comprehensive inactivation of complex organisms, including viruses and biofilms, due to its broader spectrum and higher intensity.
The HOD MP UV system effectively removes Free Available Chlorine (FAC) by targeting both forms present in water—hypochlorous acid (HOCl) and hypochlorite ion (OCl⁻), each with unique absorption characteristics. At pH levels below 7, HOCl is predominant and highly reactive to UV exposure, breaking down more easily into chloride ions (Cl⁻) and oxygen (O₂). As pH rises above 7.5, OCl⁻ becomes dominant; it is less reactive and requires more UV energy for breakdown.
The broad spectrum of wavelengths emitted by HOD medium-pressure UV lamps enables efficient removal of FAC by breaking chemical bonds in both HOCl and OCl⁻, regardless of the water’s pH level.
The end result is identical to the GAC and SBS which is Cl-, achieved in a more reliable, efficient and environmentally friendly method.
Total Internal Reflection (TIR) is Atlantium’s patented technology that enhances UV efficiency through a unique chamber design. Instead of using traditional stainless-steel chambers, TIR chambers are made of high-quality quartz surrounded by an air block. This design traps UV photons using fiber optic principles, causing them to repeatedly bounce within the quartz chamber. This recycling of light energy increases photon paths, maximizing opportunities for microbial inactivation.
TIR significantly boosts UV chamber performance and power efficiency (kW) compared to traditional systems, potentially reducing power consumption by 2-4 times, requiring fewer lamps, and maintaining consistent performance. Efficiency depends on parameters like UVT%, flow rate, and chamber geometry.
When combined with Medium-Pressure (MP) UV, TIR offers extraordinary efficacy at a lower operational cost than traditional MP or LP UV systems. This combination provides strong reliability and affordable costs, enabling effective applications such as biofilm control, which might otherwise rely on chemicals due to high costs associated with conventional UV systems
No, polished stainless steel will not reflect UV light. In many cases, it has been found that metal will adsorb the UV energy (lost UV energy)
Product Installation, Maintenance & Service
“Lamps are prorated to 4,000 hours; continuous operation prolongs lamp life.
Our accumulated data shows that the actual lamp life is much longer. Some projects demonstrated a longer lifetime of 5,000 hours, depending on the number of ignitions. Our lamp replacement alert is based on sensor readings that show the actual dose in real-time. In order to minimize the number of ignitions, our HOD UV systems are designed with a “no flow” mode. “
Atlantium’s systems fit various electrical nets. The amp draw and required circuit breaker size depend on your unit’s specific model and electrical configuration. Please refer to the electrical drawings provided with your system, or reach out to our support team for precise information.
If you don’t have a three-phase power, Atlantium can provide a phase convertor or you can use any phase converter to change 120V to 480V. In some cases, 208V, which is also a three-phase power supply to determine your specific needs. If this is the case, you’ll need a converter from 208V to 480V. Please check your power supply to determine your specific needs.
No, you don’t need to replace your lamp if it still meets performance standards. Lamps can remain viable beyond their rated duration. Their longevity depends on working hours and the number of ignitions, rather than a strict time frame.
Yes, extended warranties are available through a service contract. For more information please contact your local service provider.
The warranty begins on the day of system activation.
Atlantium does not offer on-site installation but does require commissioning of the system by a technical representative of Atlantium.
Commissioning includes system inspection, component checks, calibration, functionality testing, and training.
Atlantium can provide spare parts within 24-48 hours in North America and 24-72 hours for the ROW*. To avoid downtime, storing consumables on-site is recommended.
*Subject to third-party delays
The HOD UV system’s consumable parts include extra lamps, O-rings, connectors, and RO sleeves, all which are recommended to be stored on-site based on the system.
For your site specific list of recommended spare parts, based on the type of system and quantity, please contact your point of contact (POC) in Atlantium.
For USA: [email protected]
Global: [email protected] or https://atlantium.com/contact/
North America: Tali Bracha; [email protected] or 800-596-2609.
For North American customers, Atlantium stores spare parts in Chicago, with most shipments being domestic.
ROW: In every region where we have operating systems, there is a storage facility for Atlantium spare parts. For support, contact: [email protected]
Atlantium systems last for many years, as long as it is maintaned according to instructions and only authorized sapre parts are used. Specific parts may need to be replaced based on usage and maintenance.
Logistics
Shipping costs depend on the specific system being ordered.
Atlantium prides itself on our ability to meet short lead time requirements, which vary according to the number of systems ordered.