WASTEWATER DISINFECTION RESOURCES

WASTEWATER DISINFECTION SOLUTIONS

  • TrojanUVFlex

    TrojanUV systems are installed for water providers who are adopting wastewater reuse to conserve natural drinking water supplies. 

  • NeoTech D428™

    The NeoTech D428™ is specially designed to disinfect water and is an essential component in advanced oxidation processes.

  • Wallace & Tiernan® Analyzers and Controllers

    Wallace & Tiernan MFC analyzer/controller offers a broad combination of drinking water analysis and disinfection/chemical control in a single unit.The MFC analyzer/controller offers an easy, software selectable range of control modes from flow proportional, residual control only, compound loop and set point trim enabling precise control of a chlorinator or metering pump to maintain the desired level of disinfection and water quality.

  • Trident® HS Package Water Treatment Plant

    The Trident HS package water treatment plant provides multi-barrier protection for difficult-to-treat surface water, groundwater, industrial process water, and tertiary wastewater. The multi-barrier design of the Trident HS, which consists of packaged high-rate settling, adorption clarification, mixed media filtration and optional UV disinfection, is the latest improvement of the original Trident system.

  • Aftersales Solutions And Services

    At De Nora, we are strongly committed to providing aftersales and service support for our entire equipmen portfolio and similar competitive equipment.

WASTEWATER DISINFECTION VIDEOS

In this episode of The Water Online Show, host Angela Godwin speaks with Scott Bindner of Trojan Technologies at the AWWA ACE event in Denver. Bindner introduces Trojan’s latest innovation: a compact, mobile demonstration unit for UV advanced oxidation processes (UV AOP).

ABOUT WASTEWATER DISINFECTION

 

Wastewater disinfection takes place after primary, secondary and sometimes tertiary wastewater treatment. It is typically a final step to remove organisms from the treated water before the effluent is released back into the water system. Disinfection prevents the spread of waterborne diseases by reducing microbes and bacterial numbers to a regulated level.

A variety of physical and chemical methods are used to disinfect wastewater prior to it being released into natural waterways. Historically, the chemical agent of choice for municipal wastewater treatment has been chlorine, due to its disinfecting properties and low cost. However, the rising cost of chlorine and concerns that low chlorine concentrations can still be toxic to fish and other wildlife, has given rise to more physical methods of wastewater disinfection being adopted such as ozonation or ultraviolet (UV) light.  

The use of ozone as a disinfection agent has the added benefit of increasing the dissolved oxygen content of the treated wastewater. However, because the ozone has to be generated, ozonation can require prohibitive up-front capital expenditure compared to traditional chlorination. UV disinfection has been growing in popularity as a wastewater disinfection method, in large part because of the life-cycle economics of the equipment and the fact that, like ozone, there is no toxic residual.