Raleigh Water’s wastewater treatment facilities rely on a combination of technology and biology to ensure clean water is released back into local lakes and rivers. While employees oversee the process, much of the work is performed by microscopic organisms.
According to Raleigh Water, bacteria and protozoa play a central role in breaking down organic matter and pollutants present in wastewater. These microorganisms thrive in the nutrient-rich environment of treatment plants, operating continuously throughout the year to help decompose waste, food particles, oils, and other materials.
The presence of tardigrades—commonly known as water bears—is another indicator of effective treatment. “When water bears are found in the treatment process, it shows that there are high oxygen levels and effective breakdown of organic matter—both signs that the cleaning process is working well,” according to Raleigh Water. Unlike bacteria and protozoa, tardigrades do not contribute significantly to cleaning but serve as markers for optimal conditions within the facility.
Wastewater treatment operations involve complex processes where both technological systems and biological activity work together. The detection of certain microorganisms helps staff monitor plant performance and maintain water quality standards.
“So the next time you turn on your tap or flush the toilet, remember: it’s not just technology at work—it’s biology too,” Raleigh Water stated.
