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प्रश्न
What are flocs with respect to sewage treatment?
What are flocs?
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उत्तर
Flocs are the masses of bacteria held together by slime and fungal hyphae to form mesh like masses.
संबंधित प्रश्न
Explain the different steps involved during primary treatment phase of sewage.
Explain the function of “anaerobic sludge digester” in a sewage treatment plant.
Three water samples namely river water, untreated sewage water and secondary effluent discharged from a sewage treatment plant were subjected to BOD test. The samples were labelled A, B and C; but the laboratory attendant did not note which was which. The BOD values of the three samples A, B and C were recorded as 20 mg/L, 8 mg/L and 400 mg/L, respectively. Which sample of the water is most polluted? Can you assign the correct label to each, assuming the river water is relatively clean?
What is primary treatment of sewage?
Answer the following question.
What are ‘flocs’, formed during secondary treatment of sewage?
Name the tank to which the sewage water is passed after the preliminary treatment?
Which of the following occurs during secondary treatment?
What happens during the course of sewage decomposition?
During tertiary treatment, the bacterial floes sediment in the sedimentation tank, this sediment is called ____________.
Which of the following process is a part of preliminary treatment of sewage?
During sewage, treatment biogas is produced wits which include:
Methanogenic bacteria are not found in ______.
What is the group of bacteria found in both the rumen of cattle and shidge of sewage treatment?
Ganga has recently been declared the national river. Discuss the implication with respect to pollution of this river.
Given below is the flowchart of sewage treatment. Identify A, B, C, D and E and select the correct option.
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.
Which action plans were initiated by the Ministry of Environment and Forests to construct sewage treatment plants and protect major Indian rivers from pollution?
What is the primary purpose of chlorination in the tertiary treatment of wastewater?
