What is activated sludge and what is it used for?
Activated sludge is a mass of microorganisms that digest organic material in wastewater. The microorganisms clean the wastewater by digesting organic materials and other contaminants. There are many types of microorganisms in any given plant; some naturally occurring and some, shipped in from other plants or microbe-producers. The balance of “good” microbes v/s “bad” microbes is often a challenging task to the plant operators and seasonal changes affect the environment that the microbes live in, enhancing the challenge.