The BOD after the filtration of sewage from the low rate trickling filter is ___________ Options: A . &nbsp40-50% B . &nbsp80-90% C . &nbsp70-80% D . &nbsp90-99%

The BOD after the filtration of sewage from the low rate trickling filter is __

Question

The BOD after the filtration of sewage from the low rate trickling filter is ___________

Options:

A . 40-50%

B . 80-90%

C . 70-80%

D . 90-99%

Answer: Option B
Answer: (b).80-90%

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Question 1. The removal of BOD is independent of the loading conditions in infiltration process.....

Question 2. The efficiency of a percolating filter is given by ___________....

Question 3. The organic loading in low rate trickling filter is 900 kg/hectare-meter/day. What is the efficiency of the filter?....

Question 4. The organic loading in a trickling filter is measured in ___________....

Question 5. The recirculation factor in a low rate trickling filter is ___________....

Question 6. The maximum removal of suspended and dissolved impurities from the sewage is?....

Question 7. The color of the secondary sludge produced from the high rate trickling filter is ___________....

Question 8. The hydrogen sulfide gas formed during the filtration of sewage can be removed by ___________....

Question 9. _______ is the ratio of volume of recirculated sewage to the raw sewage.....

Question 10. The range of organic loading in kg/hectare metre/ day in a high rate trickling filter is ___________....

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