WASTEWATER DISINFECTION RESOURCES

WASTEWATER DISINFECTION SOLUTIONS

  • GWT Specialized Electrocoagulation System

    GWT electrocoagulation (EC) technology has become a valuable solution in the treatment of water and wastewater due to its ability to remove contaminants that are generally more difficult to remove by filtration or chemical treatment systems, such as emulsified oil, silica, total petroleum hydrocarbons, refractory organics, suspended solids, and heavy metals.

  • Wallace & Tiernan® Chlorine Gas Feed Systems

    About 100 years ago, Charles F. Wallace and Martin F. Tiernan installed the first chlorinator in New York, and since, chlorine gas has been the predominant chemical for the disinfection of water.

  • Model 4200-LC Automatic Gas Feeder Controller

    The JCS Industries Model 4200-LC Automatic Gas Feed Controller feeds gaseous chemicals commonly used for water and wastewater disinfection accurately, reliably and safely.

  • NeoTech D228™

    The NeoTech D228™ is specially designed to disinfect water and is an essential component in advanced oxidation processes.

  • Water Champ® FX Induction Systems Provide Superior Mixing

    The Water Champ® FX Chemical Induction System from Evoqua has set the benchmark in chemical feed and disinfection with its innovative design and versatile applications for chlorination, dechlorination, chloramines, pH adjustment and rapid mix. The system provides superior mixing intensity maximizing chemical reaction while using less energy. Independent third party testing has proven that a Water Champ system can provide up to 40% better power to flow-rate ratios compared to other induction mixers or conventional methods.

WASTEWATER DISINFECTION VIDEOS

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.

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.