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प्रश्न
Why are flocs important in biological treatment of waste water?
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उत्तर
Flocs are masses of bacteria associated with fungal filaments to form mesh-like structure. Flocs digest most of the organic material from the sludge. Thus, floc helps in reducing the BOD (Biochemical Oxygen Demand) of the effluent. This helps in the further treatment of sludge.
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संबंधित प्रश्न
Explain the process of secondary treatment given to the primary effluent up to the point it shows significant change in the level of biological oxygen demand (BOD) it.
What is the key difference between primary and secondary sewage treatment?
Answer the following question.
What are ‘flocs’, formed during secondary treatment of sewage?
Why is this sewage water treatment essential?
Name the tank to which the sewage water is passed after the preliminary treatment?
Small part of activated sludge is passed back into primary sedimentation tank.
If the above statement is correct then rewrite as it is and in case it is incorrect then reframe it.
Due to which of the following reason/s sewage water cannot be discharged directly into river?
Which of the following is TRUE about primary treatment?
After which of the following process effluents from anaerobic sludge digesters are released in natural water bodies?
Identify the type of microorganisms involved in floe formation during sewage treatment.
During tertiary treatment, the bacterial floes sediment in the sedimentation tank, this sediment is called ____________.
Study the following statements regarding tertiary treatment of sewage and choose the correct option.
i. It produces methane gas.
ii. The effluents formed from these plants undergo chlorination.
iii. BOD is significantly increased at this step.
iv. It includes screening and passage of effluent through grit chamber.
After which of the following treatment BOD of the effluent is significantly reduced?
Which of the following is TRUE regarding 'Flocs'?
Nitrogen fixation by organisms requires conditions that are:
Which of the following is put into Anaerobic sludge disaster for further sewage treatment?
Why is aerobic degradation more important than anaerobic degradation for the treatment of large volumes of waste waters rich in organic matter. Discuss.
After a significant reduction in the BOD of wastewater, it is passed into a settling tank where bacterial flocs are allowed to sediment. This sediment is called ______.
The aeration tank of a sewage treatment plant is not functioning properly. Explain in detail the impact of this on the treatment of sewage and BOD of the effluent.
