WASTEWATER DISINFECTION RESOURCES

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WASTEWATER DISINFECTION SOLUTIONS

  • GDT Mixing & Contacting Systems

    The GDT Process starts with the creation of ozone from an Ozone Generator. The ozone is then drawn into a Mazzei®Venturi Injector which provides dynamic mixing (a Back Pressure Control Valve adjusts injector outlet pressure optimizing ozone mass transfer in the system). Then mixing and contacting is enhanced in a Flash Reactor.

  • Constant Chlor® Rapid Rate Feeder Fast-Acting CSO Disinfection System

    The Constant Chlor® Rapid Rate Feeder is a highly-customizable large scale CSO disinfection system for wastewater applications. CSOs may occur after a large rainfall or melt, causing wastewater to exceed the capacity of the system. When used with Constant Chlor® Plus Briquettes, the Rapid Rate feeder is able to quickly disinfect the large volume of wastewater during a CSO event.

  • OaSys iCT™: Next-Level Dosage Control For Chemical Disinfection

    When chemical disinfection is used, inherent variability in plant processes (e.g. flow events, plant upsets) can result in inadequate public health protection and risk of permit violation. To avoid these disruptions, WRRFs regularly overdose disinfectant, resulting in excessive cost for disinfectant and quenching chemicals and increasing sensitivity to chemical market conditions (supply disruptions, price increases).

  • ClorTec® Inspection And Maintenance Program

    De Nora Water Technologies has developed a comprehensive preventative inspection and maintenance contract program for our ClorTec® on-site sodium hypochlorite generation system.

  • TurboCoag System For Chemical-Free Water Purification

    Avivid's patented electrocoagulation system is a chemical-free and cost-effective water treatment solution. This wastewater treatment technology meets the demands of customers that need to reduce pollution abatement costs, comply with EPA regulations, and reduce water consumption/waste in response to the growing demand in the water market and diminishing clean water resources.

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WASTEWATER DISINFECTION VIDEOS

ozone aops
Ozone And AOPs – Foundations And Future
Explore ozone technology and advanced oxidation processes (AOPs), with expert insights on real-world applications, water safety, and innovations shaping municipal and industrial treatment systems.
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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.