Wastewater ultraviolet germicidal irradiation (UVGI) is becoming increasingly popular across the globe, especially as a cost-effective alternative to chemical disinfection of a wastewater treatment facility.
It’s not only better for the environment—it’s a win for energy usage, too. The newest generation of ultraviolet lamps use 50 percent less energy than older versions installed 10 to 20 years ago. Ultraviolet systems for wastewater treatment facilities typically consume 10,000 to 30,000 kWh annually for each annual average million gallons per day (MGD) of the facility, depending on different factors. This translates into significant savings available for facilities that choose UVGI over chemical disinfection.
The benefits of wastewater UVGI
There are many benefits to using UVGI compared to chemical disinfection. Here are just a few reasons to make the switch.
- There’s a lower life cycle cost
- Eliminating chemicals eliminates risky storage and associated emergency response planning.
- It’s safer and better for aquatic life.
- It’s typically 100% effective in meeting environmental regulations.