A. Evaporation & chemical precipitation
B. Biological methods & adsorption in ion exchange materials
C. Fixing into a solid mass with cement and sinking deep in the sea
D. All A., B. & C.
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Related Mcqs:
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- A. High temperature incineration B. Pathological incineration C. Pyrolysis D. Underground burial in concrete containers...
- 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...
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- During sewage treatment, the sewage is subjected to ______________ treatment in Imhoff tank?
- A. Filtration B. Digestion C. Sedimentation D. Both B. and C....
- World’s worst radioactive pollution was caused by nuclear reactor disaster which occured in ___________________?
- A. Arizona (U.S.A.) B. Chernobyl (undivided U.S.S.R.) C. Pennsylvania (U.S.A.) D. Moscow (U.S.S.R.)...
- Radioactive substances present in the polluted water stream can be removed by_________________?
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- Which of the following processes is involved in the biochemical treatment of sewage effluents ?
- A. Oxidation B. Reduction C. Dehydration D. Fermentation...
- Which is the most widely used coagulant for the treatment of turbid water ?
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- The type of bacteria which is active in trickling filter during biological treatment of sewage is the _____________ bacteria?
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