What is the function of Waste Activated Sludge (WAS) in the activated sludge system?

Study for the Wisconsin DNR Wastewater Operator Certification Test. Prepare with flashcards and multiple choice questions, each question has hints and explanations. Ensure success in your certification process!

Multiple Choice

What is the function of Waste Activated Sludge (WAS) in the activated sludge system?

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