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

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

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Environmental Engineering in CE
Bacterial aerobic oxidation of polluted water in biological oxidation ponds is done to purify it. Presence of bacteria helps in

Oxidation of carbonaceous matter to CO₂
Coagulation and flocculation of colloids
All of these
Nitrification or oxidation of ammonia derived from breakdown of nitrogeneous organic matter to the nitrite and eventually to the nitrate

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