Solutions / Municipal / Wastewater / Products
TrojanUV3000B
The TrojanUV3000™B offers a cost-effective UV disinfection solution for wastewater treatment plants with limited resources. The system uses energy-efficient, low-pressure lamps.
The TrojanUV3000™B is available with a controller that enables flow pacing to maximize operating efficiency and extend lamp life. The system turns UV lamp banks on and off automatically to ensure the required dose is met using the fewest lamps and least electricity. These simple, robust, and operator-friendly systems have demonstrated their effective, reliable performance in over 1,000 installations around the world.
>> Download the TrojanUV3000™B Brochure
>> Download the TrojanUV3000™B Brochure
Advanced, Self-Contained UV Modules
Space-saving, electronic ballasts are housed right in the modules, not in separate external cabinets. This minimizes the footprint of the UV system and eliminates the need for air-conditioning. In fact, the ballasts are cooled by convection, thereby reducing O&M costs. Each UV module features a UV lamp status indicator for at-a-glance confirmation that all lamps are operating.
Proven Performance, Components and Design
The TrojanUV3000™B has been validated through regulatory-endorsed bioassay testing and installed in over 1000 installations worldwide. Performance data is generated from actual field testing (bioassay validation) over a range of flow rates, effluent qualities and UVTs - providing confidence in the system design. This modular system is scalable and can be installed outdoors to reduce installation costs.
Flow Pacing Reduces O&M Costs
The System Control Center allows the TrojanUV3000™B to be flow paced – meaning the UV lamps of individual banks are turned on and off automatically in response to variations in flow rate (based on a flow meter signal). Flow pacing maximizes operating efficiency by matching UV output to disinfection requirements, and reducing electrical consumption during periods of low flow by turning lamps off.
System Characteristics
Typical Applications
Lamp Type
- 1 – 5 MGD (158 – 789 m3/hr)
Ballast Type
- Low-pressure
Input Power Per Lamp
- Electronic; non-variable
Lamp Configuration
- 87.5 Watts
Module Configuration
- Horizontal, parallel to flow
Bank Configuration
- 4, 6 or 8 lamps per module
- Up to 20 modules per bank
Channel Configurations
Lamp Banks in Series
Channel Options
- Up to 3
Level Control Device Options
- Concrete (by others)
- Automatic Level Controller or fixed weir
Enclosure Ratings
System Monitor/Control Center
Ballast Enclosure
- Fiberglass (3R)
Ballast Cooling Method
- TYPE 4X (IP65)
Installation Location
- Convection; no air conditioning or forced air required
- Indoor or outdoor
System Monitoring & Controls
Controller
UV Intensity Monitoring
- Monitoring and bank control
Flow Pacing
- Optional
Inputs Required
- Optional
- 4-20 mA flow signal for Flow Pacing
- Local Status Indication
- Lamp Age (hours)
- UV Intensity (mW/cm2)
- Bank Status (on/off)
- Low Intensity Alarm
- Lamp Failure Alarm
Remote Alarms
- UV Intensity (4-20 mA)
- Common Alarm (discrete)
Electrical Requirements
Power Distribution
Quantity Required
- Power Distribution Centre
Power Input
- 1 PDC per bank
- 120V, single phase
- 208V, 3-phase
- 240V, single phase
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 is UV better than 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.
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.
