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ECADEMY test

28 - The basics of desalination

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Question 1 of 6 Advanced

How much of the energy needed to drive the reverse osmosis process will a pressure exchanger provide?

Question 6 of 6 Advanced

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Correct
Q: How much of the energy needed to drive the reverse osmosis process will a pressure exchanger provide?
A: 60%
Correct
Q: Why are precise dosing pumps essential in the pre-treatment process?
A: They ensure that the exact amount of chemicals is used, keeping the cost of production to a minimum.
Correct
Q: Why are beach wells with submersible pumps the optimal intake method for smaller desalination plants?
A: The water passes through sand, which acts as a natural filter and eliminates the need for prefiltration in the plant
Correct
Q: Why does the permeate water have to be further treated after the reverse osmosis process?
A: To ensure the right PH-value and to add important minerals that have been filtered away.
Correct
Q: Why is it essential that the flushing procedure runs perfectly?
A: Flushing prevents premature corrosion and increases system reliability
Correct
Q: How does reverse osmosis in desalination work?
A: High-pressure pumps force seawater through a membrane to separate water molecules from minerals, bacteria and other impurities.