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 Which of the following factors can affect the performance of a reverse osmosis system?

Option: 1

 Temperature of the feed solution


Option: 2

 pH of the feed solution 


Option: 3

Operating pressure

 


Option: 4

 All of the above


Answers (1)

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The performance of a reverse osmosis (RO) system can be affected by several factors, including the temperature of the feed solution, pH of the feed solution, and operating pressure.

Temperature of the feed solution: The permeability of the membrane and the solubility of the salts in the feed solution both increase with temperature. As a result, an increase in temperature can lead to an increase in the flux of water through the membrane and a decrease in the salt concentration in the permeate.pH of the feed solution: The pH of the feed solution can affect the solubility of the salts in the solution, as well as the surface charge of the membrane. The optimum pH for a particular RO system will depend on the type of membrane and the composition of the feed solution.

Operating pressure: The operating pressure of an RO system determines the driving force for water to pass through the membrane. Increasing the operating pressure will increase the flux of water through the membrane, but it will also increase the energy required to operate the system.

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