Increasing the temperature gives energy to molecules, making them bombard the foulant more frequently – this increases the rate of reaction between the cleaning chemicals and the foulants. In other words, warmer temperature makes the chemical cleaning work faster, but not necessarily better.
Don’t wait around until you reach the target solution temperature before you start your membrane cleaning. The hours wasted waiting usually outweigh the time saved by cleaning at warmer temperature.
Do turn on your heater and allow your membrane cleaning solution to warm up as you clean your membrane.
Do ensure to keep the heater submerged.
See also:
What is the procedure for cleaning RO membranes? What CIP chemicals should be used?
What is the relationship between pH and alkalinity? How are they different? How does temperature affect them?
Our RO plant doesn’t have a neutralization tank for our spent CIP solution. Can we just neutralize while circulating through the membrane system?
Under which conditions can antiscalants cause RO membrane fouling?