Application

To meet disinfection requirements for packaged wastewater treatment system many are supplied with the Horizontal channel type Unit to meet the quality effluent limits required at the discharged. The TIPTON Ultraviolet Disinfection system is available. The Tipton Environmental International, Inc. Horizontal Channel Type of packaged treatment systems disinfects wastewater flows ranging up to 500,000 US gallons per day (GPD). The TIPTON Horizontal Channel Type’s most significant features are the small footprint and its ease of operation.

The TIPTON ultraviolet disinfection (UV) system comes standard with a stainless steel channel and built-in level control weirs, remote NEMA modified stainless steel enclosures with window kits and removable waterproof modules.

Process

Where chlorine residuals are not acceptable in the effluent discharge. Ultraviolet disinfection is an excellent form of disinfection. We at TEII manufactures two (2) types of Ultraviolet disinfection units which are horizontal and vertical types. On the vertical type, we are the only manufacturer which manufactures a vertical self-cleaning unit.

Design Considerations

When designing an Ultraviolet Disinfection system into the overall wastewater treatment plant (WWTP), it is required to connect to the inlet and from the outlet of the UV system. The connection options are as follows:

Standard U-Channel pattern with bolt connection (shown as our standard configuration) provides a square connection and is typically used for bolt-on mount for structural steel walls, concrete channels, or for custom connections.

Transitions plates can be bolted to the U-Channel to allow for pipe stub, threaded pipe or flanged pipe connections.

Transition boxes can be bolted to the U-Channel pattern. The boxes can have 150# flanges, flange patterns, pipe stubs or threaded pipe connections. The transition boxes are used to connect to piping where high flows are expected or turbulent. The transition boxes help to de-energize and baffle the wastewater to create a more even flow.

Operation

In order to meet the effluent discharge permit limits, the UV system will require maintenance. Lamps will need to be replaced every 8,500 hours. Due to the heat of the lamps and the harsh nature of the wastewater, the quartz sleeves (the protective material over the lamps) will also need to be cleaned and possibly replaced. Fouled quartz sleeves will prevent the UV light from penetrating the wastewater solids passing through the trough and thus will reduce system efficiency. An operator is required to remove the modules and clean the quartz sleeves with a lime, calcium or rust remover. This can be done on a work table or on a cleaning rack.

Required Information for Design

• Discharge permit
• Peak instantaneous flow rate
• Average flow rate
• No flow situations
• UV transmission % at 254 nm
• Total suspended solids (TSS)
• Biological oxygen demand (BOD)
• Installation location (indoor or outdoor)
• Pre-process description
• Access to maintenance personnel

Typical Installations

• Private developments
• Schools and institutions
• Campgrounds and trailer parks
• Highway rest stops
• Small towns
• Business parks
• Industrial wastewater plants
• Parks and recreational areas

Optional Features

• Ultraviolet (UV) intensity monitoring
• 4-20 mA output or dry contact alarming
• Hand, off, and auto (HOA) switches
• Transitions for flanged, piped or threaded connections on the inlet and outlet of the UV system.
• Cleaning racks or tanks
• Complete standby spare modules
• Redundant banks

Standard Features

• Stainless steel channel construction
• Built-in level control weir with removable drain plug
• Stainless steel weatherproof modules
• Remote modified NEMA enclosures with window kits displaying lamp status and elapsed run time
• Low pressure high output (HO) or amalgam lamp technology with 8,500 hour lamp life