Question
a.
coagulation and flocculation of colloids.
b.
oxidation of carbonaceous matter to CO₂.
c.
nitrification or oxidation of ammonia derived from breakdown of nitrogeneous organic matter to the nitrite and eventually to the nitrate.
d.
all (a), (b) and (c).
Posted under Basic Chemical Engineering
Interact with the Community - Share Your Thoughts
Uncertain About the Answer? Seek Clarification Here.
Understand the Explanation? Include it Here.
Q. Bacterial aerobic oxidation of polluted water in biological oxidation ponds is done to purify it. Presence of bacteria helps in
Similar Questions
Explore Relevant Multiple Choice Questions (MCQs)
Q. Main pollutant present in automobile exhaust is
View solution
Q. Maximum allowable noise exposure limits for a man working for 8 hours a day in a noisy chemical plant is about __________ decibels.
View solution
Q. Industrial workers working in leather tanning & manufacturing units are prone to suffer from
View solution
Q. Thermal pollution of water increases its toxicity and oxidation of oxygen demanding waste besides favouring bacterial growth. A rise in water temperature by 10°C, doubles the toxic effects of __________ present in it.
View solution
Q. __________ can not control the noise pollution.
View solution
Q. Ozone level is generally found to be depleted in India in the month of
View solution
Q. Noise level during normal conversation among men is about __________ decibles.
View solution
Q. 'Particulate' air pollutants are finely divided solids and liquids. Which of the following is not a 'particulate' ?
View solution
Q. Pick out the wrong statement.
View solution
Q. Peroxyacyl nitrate (PAN), a pollutant is found in the
View solution
Q. Foaming and priming in boiler operation can be reduced by reduction in __________ in feed water.
View solution
Q. Ambient noise level can be reduced by __________ decibels by planting trees (like coconut, neem etc.) near public utility buildings (like hospitals & schools).
View solution
Q. Pick out the wrong statement.
View solution
Q. Most efficient and suitable dust removal equipment for removal of flyash from flue gas in a thermal power plant is the
View solution
Q. Which of the following is not a secondary air pollutant ?
View solution
Q. The concentration of water vapour in troposphere, which depends upon the altitude & temperature varies in the range of zero to __________ percent.
View solution
Q. The main industrial source of emission of hydrogen sulphide air pollutant is
View solution
Q. Waste/polluted water discharged from electroplating, blast furnace and coal mining industries contain mainly __________ substances.
View solution
Q. A shallow pond in which the sewage is retained and biologically treated is called
View solution
Q. Which is the most practical and economical method for removal of suspended solid matter from polluted water ?
View solution
Recommended Subjects
Are you eager to expand your knowledge beyond Basic Chemical Engineering? We've handpicked a range of related categories that you might find intriguing.
Click on the categories below to discover a wealth of MCQs and enrich your understanding of various subjects. Happy exploring!
