Activated sludge contains...

Activated sludge contains

Aerobic bacteria only

Flocs

Anaerobic bacteria only

Anaerobic fungi and bacteria only

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Identify the True or False statements about the sewage treatment plants. I. The water is less polluted if BOD is high. II. Flocs are formed by anaerobic bacteria with fungal filaments in mesh-like structures. III. Activated sludge acts like an inoculum in activated sludge digesters. IV. In activated sludge digesters, gases like methane, hydrogen sulphide and carbon dioxide are formed.

Study the given differences between primary sludge and activated sludge and select the incorrect ones. Primary Sludge Activated sludge (i) It is sludge formed during primary sewage treatment. It is sludge formed during secondary sewage treatment. (ii) It possesses flocs of decomposer microbes. It does not possess flocs of decomposer microbes. (iii) It does not require aeration. Formation of activated sludge requires aeration. (iv) A lot of decomposition occurs during formation of primary sludge. Very little decomposition occurs during formation of activated sludge.

What would happen if oxygen availability to activated sludge flocs is reduced ?

What is activated sludge ?

What happens to activated sludge?

Read the following statements about activated sludge. a. It is the effluent passed from anaerobic digester to the settling tank. b. A small part of activated sludge is pumped into large tanks called anaerobic sludge digesters. c. A small part of activated sludge is pumped back Into the aeration tank to serve as inoculum. Which of the above statements are incorrect?

Activated sludge process is concerned with waste management. It is a

Which of the following is True/false A small part of activated sludge is pumped into large tank called anaerobic sludge digesters.

Describes how biogas is generated from activated sludge. List the components of biogas.

Activated sludge should have the ability to settle quickly so that it can

AAKASH INSTITUTE ENGLISH-TEST 6-EXAMPLE

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The greater BOD ( biochemical oxygen demand) of waste water indicates.
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Activated sludge contains
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