Disinfection in wastewater treatment is a critical step that ensures treated effluent released back into the environment is safe for people, aquatic life, and downstream water users. This process eliminates or inactivates harmful microorganisms—bacteria, viruses, and protozoa—that can cause waterborne disease if left unchecked.
How Wastewater Disinfection Works
Disinfection in wastewater is commonly achieved using powerful oxidants such as chlorine, sodium hypochlorite, chloramine, or ozone. Each disinfectant provides a different balance of effectiveness, operational cost, and byproduct formation. For secondary-treated wastewater, the goal is to achieve pathogen reduction that meets regulatory discharge limits while avoiding harmful residuals in receiving waters.
Advancing Safety and Reliability with On-Site Hypochlorite Generation
As wastewater utilities manage complex safety regulations and risk management plans (RMPs) associated with chlorine gas, many are turning to on-site hypochlorite generation (OSHG). OSHG systems produce disinfectant directly at the treatment facility using salt, water, and electricity—eliminating the need for hazardous chemical transport and minimizing supply chain disruptions.
The latest OSHG technologies are engineered for high reliability, operator safety, and simplified maintenance, offering utilities a sustainable and cost-effective disinfection solution for both small and large facilities.
Optimizing the Disinfection Process
Effective wastewater disinfection requires precise dosing and continuous monitoring to maintain compliance with permit limits while minimizing chemical usage. Automation, real-time control, and data analytics help utilities ensure consistent performance and predictable operations across changing flow conditions.
Our team partners with municipalities and utility operators to evaluate site-specific challenges, optimize performance, and implement modern disinfection systems that align with environmental and safety goals.
