What does the term "Activated Sludge" refer to?

The term "Activated Sludge" specifically refers to the process involving a community of microorganisms, primarily bacteria, that are cultivated in an aeration tank. In this controlled environment, these organisms feed on organic matter within wastewater, leading to a "brownish flocculent culture." This floc is important for the biological treatment of wastewater, as it effectively breaks down pollutants and organic material. The aeration process supplies oxygen, which is vital for aerobic microorganisms to thrive and function efficiently. This biological treatment method is integral in the removal of nutrients and other contaminants before the water is treated further or released into the environment, making it a fundamental component of modern wastewater treatment systems.

Understanding this process is essential for those in the wastewater field, as it directly affects the efficiency and effectiveness of wastewater treatment plants.