Question 1 of 6
Advanced

Why are precise dosing pumps essential in the pre-treatment process?

Question 2 of 6
Advanced

Why are beach wells with submersible pumps the optimal intake method for smaller desalination plants?

Question 3 of 6
Advanced

How does reverse osmosis in desalination work?

Question 4 of 6
Advanced

Why is it essential that the flushing procedure runs perfectly?

Question 5 of 6
Advanced

How does a pressure exchanger bring down the costs of production?

Question 6 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

Happy with your answers?

Submit your current answers and get the final test result.

Test results

Congratulations. You have passed the test and completed the 28 - The basics of desalination
Sorry. You did not pass the 28 - The basics of desalination test this time
Achieved badges:
How would you rate this course?
1: Why are precise dosing pumps essential in the pre-treatment process?
They ensure that the exact amount of chemicals is used, keeping the cost of production to a minimum.
1: Why are precise dosing pumps essential in the pre-treatment process?
The salt cannot be removed from the water if it is not treated with chemicals.
You can find the answer here >
1: Why are precise dosing pumps essential in the pre-treatment process?
It always looks good if a premium brand of dosing pumps is installed.
You can find the answer here >
2: Why are beach wells with submersible pumps the optimal intake method for smaller desalination plants?
A beach well is a very cheap solution for water intake.
You can find the answer here >
2: Why are beach wells with submersible pumps the optimal intake method for smaller desalination plants?
A beach well intake will prevent chemical use in the desalination plant.
You can find the answer here >
2: Why are beach wells with submersible pumps the optimal intake method for smaller desalination plants?
The water passes through sand, which acts as a natural filter and eliminates the need for prefiltration in the plant
3: How does reverse osmosis in desalination work?
In reverse osmosis, the intake water is subjected to high temperatures in order to separate salt from water through evaporation.
You can find the answer here >
3: How does reverse osmosis in desalination work?
Reverse osmosis is a normal filtration process in which water passes through a filter.
You can find the answer here >
3: How does reverse osmosis in desalination work?
High-pressure pumps force seawater through a membrane to separate water molecules from minerals, bacteria and other impurities.
4: Why is it essential that the flushing procedure runs perfectly?
Flushing prevents premature corrosion and increases system reliability
4: Why is it essential that the flushing procedure runs perfectly?
Flushing keeps the usage of expensive chemicals to an absolute minimum
You can find the answer here >
4: Why is it essential that the flushing procedure runs perfectly?
Flushing ensures reliable and efficient operation for years
You can find the answer here >
5: How does a pressure exchanger bring down the costs of production?
It transfers the pressure from the expelled brine to the intake seawater using a rotor, reducing the need for high-pressure pumps.
5: How does a pressure exchanger bring down the costs of production?
The pressure exchanger generates electricity for the intake pump.
You can find the answer here >
5: How does a pressure exchanger bring down the costs of production?
The pressure exchanger drives a high-pressure pump.
You can find the answer here >
6: How much of the energy needed to drive the reverse osmosis process will a pressure exchanger provide?
33%
You can find the answer here >
6: How much of the energy needed to drive the reverse osmosis process will a pressure exchanger provide?
50%
You can find the answer here >
6: How much of the energy needed to drive the reverse osmosis process will a pressure exchanger provide?
60%