The color of digestive sludge is ___________

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The color of digestive sludge is ___________

Options:

A . Blue

B . Black

C . Brown

D . Gray

Answer: Option B
Answer: (b).Black

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Question 1. The maximum temperature at which thermophilic microorganisms remain active in sludge digester is ___________....

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Question 3. Which of the following is incorrect about aerobic digestion in the sludge digestion process?....

Question 4. The sludge digestion process is independent of which of the following?....

Question 5. Which of the following activated sludge process has minimum food to microorganism ratio?....

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Question 7. The organic loading in an activated sludge plant is defined as ___________....

Question 8. The maximum aeration period for a conventional activated sludge system is ___________....

Question 9. The design Hydraulic loading rate of the gravity thickener is _______ m³/m²/day.....

Question 10. Which of the following is not used for drying of sludge?....

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