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Chemical Environmental Engineering

Oilish impurities present the effluent discharged from the electroplating industry is normally not removed by _____________________?

Chemical Environmental Engineering /
Oilish impurities present the effluent discharged from the electroplating industry is normally not removed by _____________________?

A. Chemical coagulation
B. Floatation & skimming
C. Centrifugation
D. Ultra filtration

Oilish impurities present the effluent discharged from the electroplating industry is normally not removed by _____________________? Read More »

Chemical Environmental Engineering

Disinfection of water is done to destroy pathogenic bacteria and thus prevent water-borne diseases. Disinfection of water may be done by the use of_________________?

Chemical Environmental Engineering /
Disinfection of water is done to destroy pathogenic bacteria and thus prevent water-borne diseases. Disinfection of water may be done by the use of_________________?

A. Ozone and iodine
B. Chlorine or its compounds
C. Ultraviolet light for irradiation of water
D. All A., B. & C.

Disinfection of water is done to destroy pathogenic bacteria and thus prevent water-borne diseases. Disinfection of water may be done by the use of_________________? Read More »

Chemical Environmental Engineering

Which of the following is not a practical method of low level radioactive waste disposal ?

Chemical Environmental Engineering /
Which of the following is not a practical method of low level radioactive waste disposal ?

A. Dilution with inert material
B. Discharging to atmosphere through tall stacks after dilution
C. Disposing off in rivers & oceans
D. Filling in steel crates and shooting it off out of earth’s gravity

Which of the following is not a practical method of low level radioactive waste disposal ? Read More »

Chemical Environmental Engineering

The effect of increase in carbon dioxide level of the atmosphere and its profound effect on our climate is called the ________________?

Chemical Environmental Engineering /
The effect of increase in carbon dioxide level of the atmosphere and its profound effect on our climate is called the ________________?

A. Catalytic conversion
B. Green house effect
C. Global warming
D. Both B. and C.

The effect of increase in carbon dioxide level of the atmosphere and its profound effect on our climate is called the ________________? Read More »

Chemical Environmental Engineering

Green house gases blanket/block the infrared radiation from earth’s surface to the atmosphere leading to its progressive warming up. Which of the following gases does not exhibit green house effect ?

Chemical Environmental Engineering /
Green house gases blanket/block the infrared radiation from earth’s surface to the atmosphere leading to its progressive warming up. Which of the following gases does not exhibit green house effect ?

A. CO2
B. H2
C. SO3
D. N2

Green house gases blanket/block the infrared radiation from earth’s surface to the atmosphere leading to its progressive warming up. Which of the following gases does not exhibit green house effect ? Read More »

Chemical Environmental Engineering