Civil Engineering - Waste Water Engineering - Discussion

Discussion Forum : Waste Water Engineering - Section 6 (Q.No. 40)
40.
Pick up the correct statement from the following :
Rate of digestion of slugde is more at higher temperature
Thermophilic organisms digest the sludge if the temperature ranges from 40° to 60°C
Mesophilic organisms digest the sludge if the temperature is between 25° and 40°C
90% of digestion takes place in 30 days at 29°C, the optimum mesophilic temperature
All the above.
Answer: Option
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