What is required to keep the activated sludge suspended?

Related MCQs

• Activated sludge usually employs an aeration period of ________________
• Activated sludge process degrade organics and _________
• How does the activated sludge appear?
• Which section of CWA regulates land disposal of sludge?
• Which of the following gases are produced in large amounts during sludge digestion?
• Primary sludge includes __________
• What is the term used for reuse of sewage sludge?
• What is the percentage of aerobically digested sludge?
• Sludge from the primary clarifier is ______
• How does the chemical sludge appear?