Topic List

 Sewage and Sewers  General Questions  Wastewater  Air Pollution  Filtration  Water Flow System  Sedimentation  Disinfection  Atmosphere and Greenhouse Gases  Treatment Methods  Pumps and Pumping  Solid Waste Management  Quality of Water  Acid Rain and Aerosols  Water Softening  Water Demand and Quantity  Unit Operations, Screening and Aeration

Treatment Methods on Environmental Studies related Questions and Answers - Page 6

Question 51 : When small amounts of iron and manganese are present in water, they are removed by
1. Aeration
2. Coagulation
3. Manganese zeolite
4. Filtration
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Question 53 : In which desalination process, the salt ions are removed from seawater by means of electric current?
1. Distillation
2. Electro-dialysis
3. Reverse osmosis
4. Freezing
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Question 54 : By which process dissolved manganese compounds can be converted into insoluble manganese compounds?
1. Aeration
2. Coagulation
3. Sedimentation
4. Flocculation
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View 51 - 54 of 54 Questions

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