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Waste Water Engineering

Q1: Aerobic bacterias

A flourish in the presence of free oxygen

B consume organic matter as their food

C oxidise organic matter in sewage

D All the above.

ANS:D - All the above.

  1. Flourish in the presence of free oxygen: Aerobic bacteria require oxygen to carry out their metabolic processes. They thrive in environments where oxygen is readily available.
  2. Consume organic matter as their food: Aerobic bacteria utilize organic matter as a source of food. They break down complex organic compounds into simpler forms through aerobic respiration, releasing energy in the process.
  3. Oxidize organic matter in sewage: Aerobic bacteria play a crucial role in the biological treatment of sewage. They oxidize and decompose organic matter present in sewage, helping to break down pollutants and reduce the organic content of wastewater.
Therefore, all of the statements are correct: Aerobic bacteria flourish in the presence of free oxygen, consume organic matter as their food, and oxidize organic matter in sewage.
 



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