WASTEWATER DISINFECTION RESOURCES

WASTEWATER DISINFECTION SOLUTIONS

  • Is ORP Really Your Best Option For Dechlorination Measurement?

    In this application note, explore considerations for achieving more reliable accuracy when quantifying dechlorination results for applications ranging from RO membrane protection to wastewater discharge compliance.

  • 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.

  • Oxelia™

    Xylem’s Leopold Oxelia is an ozone-enhanced biologically active filtration system and multi-barrier solution for municipal wastewater treatment. The Leopold Oxelia system combines ozone, filtration and analytical instrumentation to deliver optimal wastewater treatment for water reuse and discharge into sensitive waters.

  • Chlorine Measurement In Wastewater And Regulated Discharge Requirements

    Homes, industry, schools, and businesses all generate sanitary waste, or sewage. Sewage treatment is a multistage process that cleans up wastewater before discharge or reuse. In the final step of the treatment, disinfectants are added to kill disease-causing organisms. Common disinfectants are chlorine gas and sodium hypochlorite. Chlorine dosage levels are designed to leave almost no residual in the wastewater after treatment

  • Dual Diaphragm Chemical Feed For Precise Chem Dosing With No Vapor Lock

    While dosing challenging chemicals can be tricky for operators, there are a range of technologies that will help mitigate problems and ensure smooth, accurate, and dependable chemical dosing.

WASTEWATER DISINFECTION VIDEOS

Tune in to this episode of The Water Online show to hear as Sannel Patel, Director of Business Development and Marketing at Pinnacle Ozone, breaks down the strategic engineering advantages of modular ozone system designs.

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.