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Environmental Engineering Practice Test: Other Treatment Methods
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Environmental engineers use a variety of methods to treat environmental issues, including:   Water treatment: Environmental engineers assess the movement of water and the systems that store and treat it. This includes treating water to prevent illnesses and make it palatable. Recycling: Recycling is a basic method of reducing pollution. It involves transforming waste resources into new materials and commodities. Wastewater treatment: Environmental engineers design wastewater treatment plants to clean water before it's discharged into bodies of water. They use biological and mechanical... Show more
Environmental Engineering Practice Test: Other Treatment Methods
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25 Questions

1. Which material is used for removing fluorides from hard water containing 3ppm of fluorides?
2. _______ is produced by passing a carbonaceous material through a heating mechanism at high temperature.
3. Which material is used in contact filters for the removal of fluorides?
4. The reddish tinge in the water is due to the presence of ____________
5. Which of the following regarding ozonation is incorrect?
6. In which desalination process, the salt ions are removed from seawater by means of electric current?
7. When small amounts of iron and manganese are present in water, they are removed by ____________
8. Which of the following is not a property of activated carbon?
9. The solar evaporation can yield about ___ kg of fresh water per day per m2 of basin surface.
10. The number of stages involved in the desalination using a multistage flash evaporator is _________________
11. Which of the following method is not used for desalination?
12. In which process, the fluoride content of water is raised?
13. What concentration of iron and manganese will cause unpleasant taste and odor of water?
14. In Electro-dialysis, the electric energy which required is _____________
15. When activated carbon is applied at more than one point, then it is called ________
16. Removal of iron from water takes place at a pH of ______
17. The fluoride concentration for prevention of dental caries is ____________
18. Which of the following is the best evaporative desalinating method?
19. The brown tinge in the water is due to the presence of ____________
20. What is the dose of copper sulfate required for the treatment of water?
21. Iron and Manganese are generally present in water supplies as ____________
22. The presence of Sulfate iron in the water results in ____________
23. In which desalination process, solar energy is used?
24. Which of the following is a carbonaceous material?
25. Which of the following is not used as a fluoride compound?