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प्रश्न
Discuss about the major programs that the Ministry of Environment and Forests, Government of India, has initiated for saving major Indian rivers from pollution.
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उत्तर
The untreated sewage is often discharged directly into rivers leading to their pollution and increase in water-borne diseases. The Ministry of Environment and Forests has initiated Ganga Action Plan and Yamuna Action Plan to save these major rivers of our country from pollution. Under these plans, it is proposed to build a large number of sewage treatment plants so that only treated sewage may be discharged into the rivers.
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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.
Explain the process of sewage water treatment before it can be discharged into natural water bodies.
Answer the following question.
Secondary treatment of the sewage is also called Biological treatment. Justify this statement and explain the process.
Why is this sewage water treatment essential?
Name the tank to which the sewage water is passed after the preliminary treatment?
What are flocs with respect to sewage 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?
Which of the following occurs during tertiary treatment?
During tertiary treatment, the bacterial floes sediment in the sedimentation tank, this sediment is called ____________.
Methanogenic bacteria are not found in ______.
The primary treatment of waste water involves the removal of ______.
BOD of waste water is estimated by measuring the amount of ______.
Name the states involved in Ganga action plan.
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.
What would happen if a large volume of untreated sewage is discharged into a river?
Study the given diagram of the Sewage Treatment Plant (S.T.P.) and answer the question that follows:
- Which one of the two 'S.T.P.' (A) or (B) will be more effective in treating the human excreta in municipal waste?
- Write the steps followed in carrying the treatment of the sewage in step (Z), once the BOD of sewage is reduced significantly till it is passed on to the "anaerobic sludge digesters".
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 ______.
