Solutions / Municipal / Environmental Contaminant Treatment / Products
TrojanUVSwiftECT
The TrojanUVSwift™ECT is a hydraulically optimized, polychromatic lamp-based UV reactor for use in the treatment of environmental contaminants. It is suitable for removing contaminants from large flow rates within a compact footprint.
The TrojanUVSwift™ECT employs sophisticated controls to optimize the treatment of environmental contaminants. The broad light spectrum of light emitted in the TrojanUVSwift™ECT makes it extremely well suited for the treatment of many contaminants, particularly some pesticides and taste and odor-causing compounds found in surface waters. Its ultra-compact footprint, its ability to apply large amounts of UV light, and high flow capacity make it an excellent reactor for use as part of a multi-barrier system in large municipal applications. In such an application, the TrojanUVSwift™ECT destroys contaminants such as pharmaceuticals and taste and odor-causing compounds while providing disinfection of chlorine-resistant protozoa.
>> Download the TrojanUVSwift™ECT Brochure
>> Download the TrojanUVSwift™ECT Brochure
Compact, Hydraulically - Efficient Reactor
Space requirements for taste and odor treatment are significantly less than ozone equipment/contact tanks – leading to significantly reduced installed capital costs. The reactors are fully serviceable from one side of the reactor, allowing installation in restrictive pipe galleries and against walls for maximum flexibility.
Comprehensive Disinfection Validation
Disinfection performance of the TrojanUVSwift™ECT has been accurately documented through rigorous third-party validation (USEPA UV Guidance Manual 2006). In the Trojan UV-oxidation process, disinfection occurs simultaneously with the treatment of contaminants.
Sophisticated Hydrogen Peroxide Dosing Control System
Sophisticated, patent-pending control system optimizes the UV-oxidation process by controlling the dosing of hydrogen peroxide, lamp power and on/off status in real time. This minimizes the ongoing operational costs while maintaining optimized UV energy distribution and hydrogen peroxide dosing.
Ideal for Seasonal Contaminants in Drinking Water
The reactors can operate in two modes: Disinfection-Only or Disinfection + Contaminant Control mode. Therefore, the reactor can provide year-round disinfection and simultaneous elimination of seasonal contaminants such as taste and odor compounds like 2-methylisoborneol (MIB) or geosmin.
System Characteristics
Number of Lamps
Max System Pressure
- 8 - 16
Cleaning System
- 150 psi (10 bar)
Max Water Temperature
- None
- ActiClean™ Sleeve Cleaning System
- 30°C
Reactor
Material
Flange Types
- 316L Stainless Steel
NSF Certification 60/61
- 24" (600mm)
- 30" (800mm)
- Yes
Control Panel
Materials of Construction
Rating
- Painted Mild Steel (Gray)
UL&CE Certification
- Type 1
Ethernet Network Interface, Data Trending, Remote Modem
- Yes
- Yes
Electrical Requirements
Standard Voltage
- 480V, 3 Phase, 3 Wire + GND, 60Hz
- Other options available
What is UV-Photolysis?
UV-photolysis is the process by which chemical bonds of the contaminants are broken by the energy associated with UV light. When light is incident on an object, the photons may be reflected, transmitted, or absorbed. When UV photons enter a medium (water, for example), they are both transmitted and absorbed by the medium and its constituents (dissolved species including organic and inorganic substances). Photons that are absorbed may initiate a photolysis reaction.What is UV-Oxidation?
UV-oxidation is a photochemical process that breaks down organic constituents in water by the process of oxidation initiated by UV light plus an oxidant such as hydrogen peroxide. When UV photons are absorbed by hydrogen peroxide dissolved in water, hydroxyl radicals are formed. Hydroxyl radicals are highly reactive chemical species that then attack the contaminant molecule, breaking it into its component forms. Next to flourine (a poisonous, corrosive and malodorous gas), the hydroxyl radical is one of the most reactive species known - more reactive than ozone.Does UV-Photolysis and UV-Oxidation occur simultaneously?
Yes, UV-Photolysis and UV-Oxidation happen simultaneously. Most contaminants are broken down by a combination of both processes. Some compounds, such as 1,4-dioxane, are broken down only by UV-oxidation, with very little contribution from direct UV-photolysis. Other compounds, such as NDMA, are broken down almost exclusively by UV-photolysis.Is hydrogen peroxide safe?
Yes. Hydrogen peroxide is a natural metabolite of many organisms, which decomposes into oxygen and water. Hydrogen peroxide is also formed by the action of sunlight on water – a natural purification system for our environment. Consequently, hydrogen peroxide has none of the problems of gaseous release or chemical residues that are associated with other chemical oxidants.Why is UV-Oxidation better than ozone?
Most waters have some naturally occurring bromide that can react with ozone to form bromate. Ozone is also ineffective for NDMA treatment. Ozone is not as efficient as UV at inactivating the Cryptosporidium and Giardia since large doses or contact times are needed especially in cold waters. The capital investment for ozone is very high and can pose as a risk to operators since ozone is a dangerous gas.Why is UV-Oxidation better than activated carbon?
Large amounts of carbon are required to treat the taste and odor-causing chemicals MIB and geosmin, which have a low affinity for carbon. This technology only transfers a contaminant to the solid phase, but does not destroy it. The disposal of the contaminated carbon requires treatment, hauling, or regeneration, which significantly increases the overall treatment costs. It is also ineffective for treatment of NDMA, 1,4-dioxane, many pesticides, vinyl chloride, and other contaminants with a low affinity for carbon.Why is UV-oxidation better than membranes (i.e. reverse osmosis)?
Membranes separate contaminants from the bulk liquid (filtrate) into a concentrated side-stream (retentate or brine). The volume of retentate can be significant when water resources are in short supply. For example, Reverse Osmosis can reject up to 20% of the incoming water stream. This retentate requires disposal. By comparison, UV is a destructive treatment, requiring no retentate disposal. Membranes are also ineffective for NDMA and 1,4-dioxane treatment.
Seasonal Taste & Odor Treatment
When algae blooms die in late summer/early fall, chemicals such as geosmin and 2-methylisoborneol (MIB) are released causing water to smell and taste earthy or musty.Contaminant Treatment
Water sources, groundwater and surface water, are increasingly impacted by contamination. With population pressures, climate change, and overuse making every water source important, water providers are increasingly looking to advanced treatment technologies to restore contaminated sources.Groundwater Remediation
In many areas, localized releases of industrial chemicals, pesticides, petroleum additives such as MTBE, and fuel components such as benzene and hydrazine, have impaired groundwater quality. These groundwater “plumes” are commonplace, and in many cases impact public water supplies or impedes the redevelopment of potentially valuable land.
