Activated sludge contains
A. 3-6% N, 2% P2O5 and 2.5% K2O
B. 3-6% N, 2% P2O5 and 1.0% K2O
C. 8-10% N, 2% P2O5 and 1.5% K2O
D. 4-6% N, 2% P2O5 and 2.5 K2O
Answer: Option B
Solution(By Examveda Team)
The activated sludge is a type of biological wastewater treatment process for treating sewage or industrial wastewater using aeration and a biological floc composed of a mixed blend of microorganisms, 95% of which are a variety of mostly aerobic species of bacteria, and also contains fungi, protozoa and higher forms of invertebrates along with some essential nutrient elements. The nutrient elements it contains are 3 - 6% N, 2% P2O5 and 1.0% K2O.Related Questions on Soil Science
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