Environmental Engineering in CE
Which is the most efficient dust removal equipment for removal of sub-micronic dust particles from blast furnace gas?

Packed scrubber
Gravity settling chamber
Electrostatic precipitator
Hydrocyclone

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

Discharging to atmosphere through tall stacks after dilution
Filling in steel crates and shooting it off out of earth
Dilution with inert material
Disposing off in rivers & oceans

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