Multiple choice

Which of the following bacterial genera is employed in sewage treatment process?

  1. Azotobacter

  2. Brucella

  3. Erwinia

  4. Pelagibacter

  5. Zoogloea
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E Correct answer
Explanation

The genus Zoogloea is important in the context of aerobic sewage-treatment processes such as the activated sludge system. As they grow, Zoogloea bacteria form fluffy, slimy masses that are essential to the proper operation of such systems.

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