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TrojanUV4000Plus
Our most advanced wastewater system, the TrojanUV4000Plus™ is the first commercially-successful, medium-pressure UV lamp system that’s specifically designed for handling high volume and lower quality wastewater.
Incorporating ActiClean™ - Automatic Chemical/Mechanical cleaning technology, the TrojanUV4000Plus™ is the ultimate solution for a virtually maintenance-free system. With over 375 installations – including some of the largest wastewater treatment plants in the world – the TrojanUV4000Plus™ is allowing engineers and operators to incorporate chemical-free, UV disinfection for large flows of 10 MGD (1,578 m3/hr) and greater in a minimal amount of space – with a fraction of the number of lamps required by low-pressure systems. The extremely compact system can be used for low UV transmittance applications previously unattainable with ultraviolet technology. It also offers the flexibility to treat a wide range of wastewater; from primary, secondary and blended effluents to combined and sanitary sewer overflows to water for reuse applications.
>> Download the TrojanUV4000Plus™ Brochure
Designed for Challenging & Large Scale Applications
High intensity medium-presure lamps provide effective treatment of very low UV Transmittance (UVT) effluent (as low as 15%) and large flows since the UV output is significantly higher than low-pressure lamp systems. Its footprint is significantly smaller compared to other low-pressure UV lamp systems or chlorine disinfection system (typically 1/8th to 1/15th of the space) due to the high UV output of the lamps.
Unsurpassed Chemical/Mechanical Sleeve Cleaning
The automatic chemical/mechanical sleeve cleaning system (also known as ActiClean™) eliminates sleeve fouling without disrupting the disinfection process, thereby reducing downtime and O&M costs.
Dose Pacing Reduces O&M Costs
The high-efficiency ballasts can vary the lamp power from 30 - 100% in order to match the required UV dose with the effluent quality and the flow rate. This allows plants to minimize their power consumption by dimming the lamps when the plant is operating at average conditions.
Design Flexibility Reduces Installation Costs
The reactor is designed for simplified retrofit into existing chlorine contact tank infrastructure, minimizing construction costs – and leaving the majority of the contact tank available for storage, by-pass or emergency back-up. Electronic ballasts are inside the modules, eliminating the need for large ballast panels mounted beside the UV channel. Furthermore, all system components can be installed outdoors - eliminating the need to build a climate-controlled building.
Typical Applications
Lamp Type
- 10 MGD and up; primary, secondary, blended, and tertiary wastewater, CSO, SSO, and water reuse
Ballast Type
- Medium-pressure, polychromatic UV output
Input Power Per Lamp
- Electronic, variable output (30 - 100% power)
Lamp Configuration
- 3,200 Watts (variable)
Lamps Per Module
- Horizontal, parallel to flow
Modules Per Bank
- 6 to 24
Level Control Device Options
- 2 to 7
- Fixed weir or motorized weir gate
Module Ballast Enclosure
All Other Enclosures
- TYPE 6P (IP67)
Ballast Cooling Method
- TYPE 4, 4X or 3R (IP56, IP65 or IP14)
Structural Materials
- Closed loop system; no air conditioning or forced air required
Maximum Ambient Temperature
- Wetted parts: 316 SST; Non-wetted parts: 304 SST
- 122ºF (50ºC)
ActiClean™ Cleaning System
ActiClean™ Cleaning Gel
- Dual-action; chemical/mechanical; programmable for automated cleaning at defined interval; manual override
- Non-corrosive, operator-friendly, food-grade
Controller
UV Intensity Monitoring
- Various PLC options; Ask your Trojan Representative for details
Inputs Required / Optional
- 1 sensor per bank
Typical Outputs Provided
- 4-20 mA flow signal / 4-20 mA UVT signal
- Bank status, common alarms and SCADA communication
Power Distribution Center
Hydraulic System Center
- 277/480V, 3 phase, 4 wire + ground, 50/60 Hz
- 230/400V, 3 phase, 4 wire + ground, 50/60 Hz
System Control Center
- 120V, single phase, 2 wire + ground, 50/60 Hz
- 230V, single phase, 2 wire + ground, 50/60 Hz
- 120V, single phase, 2 wire + ground, 50/60 Hz
- 230V, single phase, 2 wire + ground, 50/60 Hz
What is ultraviolet (UV) light?
Ultraviolet (UV) light is a form of light that is invisible to the human eye. It occupies the portion of the electromagnetic spectrum between X-rays and visible light. The sun emits ultraviolet light; however, much of it is absorbed by the earth’s ozone layer.
A unique characteristic of UV light is that a specific range of its wavelengths, those between 200 and 300 nanometers (billionths of a meter), are categorized as germicidal – meaning they are capable of inactivating microorganisms, such as bacteria, viruses and protozoa. This capability has allowed widespread adoption of UV light as an environmentally friendly, chemical-free, and highly effective way to disinfect and safeguard water against harmful microorganisms.How does UV work?
Unlike chemical approaches to water disinfection, UV light provides rapid, effective inactivation of microorganisms through a physical process. When bacteria, viruses and protozoa are exposed to the germicidal wavelengths of UV light, they are rendered incapable of reproducing and infecting.Microorganisms are inactivated by UV light as a result of damage to nucleic acids. The high energy associated with short wavelength UV energy, primarily at 254 nm, is absorbed by cellular RNA and DNA. This absorption of UV energy forms new bonds between adjacent nucleotides, creating double bonds or dimers. Dimerization of adjacent molecules, particularly thymine, is the most common photochemical damage. Formation of numerous thymine dimers in the DNA of bacteria and viruses prevents replication and inability to infect.Why not use chlorine?
UV offers a key advantage over chlorine-based disinfection, due to its ability to inactivate protozoa that threaten public health – most notably Cryptosporidium and Giardia. UV does not add any chemicals to the water and does not produce disinfection by-products.Chlorine gas is a highly toxic chemical that must be transported and handled with extreme caution. It is a strong oxidizing agent that can be extremely dangerous to humans. The increasing concerns about the hazards of chemical disinfection to the public, the operators, and the environment have dramatically increased the cost of chemicals and the administrative efforts required to meet safety regulations. As a result, UV disinfection has increasingly become the choice for wastewater disinfection due to some significant advantages over chemical-based disinfection.
Water Reuse
The advanced treatment and reuse of wastewater is becoming increasingly common as municipalities address high water demands and shrinking supplies. Australia, Spain, Italy, California and Florida, to name a few, must balance increasing population growth, dry climates and heavy irrigation/agricultural demands.Secondary & Tertiary Disinfection
The vast majority of wastewater treatment plants around the world provide secondary treatment through conventional activated sludge processes. Secondary processes are effective upstream of UV disinfection since they remove particles and improve water clarity.Low Quality Water Disinfection
UV is proven effective in challenging applications such as combined sewer overflows (CSO), storm and sanitary sewer overflows (SSO), blended effluents as well as disinfection of primary treatment effluent.
Video
Gallery
High Flow Applicatio... UV can be installed to treat both high flow and low flow applications. ...
Chlorine Retrofit In... In this retrofit installation, each reactor was installed in one ...
Small Footprint Inst... This 10 MGD (1,577 m3 hr) installation consist of a single reactor ...
Wastewater Reuse Dis... This reuse system treats a peak flow of 15 MGD (2,365 m3 hr). Individual ...
Primary Effluent Dis... This wastewater treatment plant disinfects primary effluent (low ...
