Discussion :: Waste Water Engineering - Section 6 (Q.No.21)
Acid regression stage of sludge digestion at a temperature 21°C extends over a period of
Answer: Option D
No answer description available for this question.
|Shubham Siddharth Nayak said: (May 25, 2020)|
|Acid fermentation-15 days (half month).
Acid regression-90 days (3 months).
Alkaline fermentation-30 days (1months).
Total time required for complete digestion in digestive unit=4 and half months.
|Fahad said: (Oct 6, 2020)|
|Thanks @Shubham Siddharth Nayak.|
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