Advertisements
Advertisements
प्रश्न
Why do we prefer to call secondary waste water treatment as biological treatment?
उत्तर
The secondary treatment is also called biological treatment because in secondary treatment living organisms like bacteria and fungi are used.
APPEARS IN
संबंधित प्रश्न
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 20mg/L, 8mg/L and 400mg/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?
Answer the following question.
Secondary treatment of the sewage is also called Biological treatment. Justify this statement and explain the process.
What are flocs with respect to sewage treatment?
The purpose of biological treatment of waste water is to ______.
In which of the following microbial digestion of organic wastes of sewage takes place?
After which of the following process effluents from anaerobic sludge digesters are released in natural water bodies?
Identify the INCORRECT statement with respect to sewage treatment.
Activated sludge should have the ability to settle quickly so that it can ______.
Ganga has recently been declared the national river. Discuss the implication with respect to pollution of this river.
Which of the following statement is correct for Sewage Treatment Plants (STPs)?
