Traditionally wastewater has been disinfected using chlorine treatment. When chlorine is added to wastewater, it can alter organic matter by forming disinfection byproducts (DBPs). In addition to the health concerns, chlorine is unable to protect against pathogens like Cryptosporidium and Giardia. Unlike chemical methods, UV does not add anything to the water except light. There is not a balancing act between dosing and residuals. Read more about how it works.
Over the past decade, the cost to install and operate UV systems has decreased. This is largely in part by increased efficiencies in lamp technology and system design. These advancements have reduced the number of lamps and number of systems required, in turn reducing energy consumption and construction costs. The life-cycle cost for UV disinfection is more cost effective than chlorination methods in the long term due to operating costs and the high costs of purchasing, transporting, storing, and handling chlorine.
Indirect potable reuse (IPR) of wastewater is widely practiced for municipal and agricultural irrigation, dust suppression and urinal flushing. In a number of US coastal regions, reuse water is injected into the ground. This technique is called Aquifer Storage and Recovery and is utilized both to prevent saline incursion into freshwater aquifers.
In certain parts of the world, direct potable reuse (DPR) is now the norm for recovering drinking water from waste streams. This takes advanced treatment technology ETS-UV disinfection systems used in conjunction with an Advanced Oxidation Process (AOP) will remove Compounds of Emerging Concerns (CEC'S), Synthetic Organics (SO's), Endocrine Disruptor Compounds (EDC's) and Personal and Pharmaceutical Care Products (PPCP's), as well as various taste and odor compounds from water.
Performance & Design Advantage
- Validated Performance - Validated to the NWRI Reuse Guidelines
- Energy Efficient - Variable power delivers dose with precision
- Superior Design - Chambers are designed using emulation models to achieve the lowest head loss
- Quality Materials - Chambers are constructed of material that will withstand the powerful effects of the UV process and will not produce harmful carcinogenic byproducts
- Flexible Design - Chambers are compact and can be installed vertically or horizontally, systems can be incorporated as retrofit solutions or new construction
- Automatic Wiper - Wipers keep the optical path free from fouling lamps
Maintenance & Operational Advantage
- Quick Replacement - Wiper rings can be replaced without removing wiping carriage from chamber
- Small Maintenance Space Required - Single sided access for lamp replacement
- Safety - Plug and play connections, lamps utilize a twist lock plug connection that automatically centers the lamp, UV light and electricity are isolated with a water tight connection
Product Design and Continuous Improvement
We believe that good design should make products safe, understandable, innovative and useful. Through the continued relationship of service, we examine wear throughout the product lifecycle and rely on Field Service Technician feedback on product improvement. We also utilize a variety of design tools that provide emulation of system performance. This has led to many of the innovative features that have been a source of advantage.
- Emulate the performance of UV systems by using advanced software tools
- Use Finite Element Analysis (FEA) to understand how the UV chambers will become stressed under hydraulic pressure
- Predict weakness in design with Computational Fluid Dynamics (CFD)
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