Chemical cleaning of membranes

Chemical cleaning of membranes

The chemical membrane management process is, contrary to appearances, an extremely important practice, if we want the process of water treatment in the installation to be carried out correctly, quickly and without failures.

Sediments on reverse osmosis membranes arise despite ensuring adequate operating conditions and equipment for the treatment system at the pre-water preparation station upstream of the membrane system. Ensuring optimal working conditions for the membrane is important, but it is not enough to obtain sludge formation - in practice, we can only delay this process and only to a certain extent.

Therefore, it is necessary to carry out chemical cleaning of the membrane.

Why is there deposits on the membrane surface? This is, among others the result of deterioration in quality permeate, or filtrate, and hence, go to its flow, pressure changes (which has an effective impact on the efficiency of the reverse osmosis process) or fluctuations in salinity and temperature.

It is recommended to perform this type of operation whenever: a change in the normalized pressure level (up to 10-15%); filtrate flow is adjusted to 10%; salt norm expands to 5-10%.

Properly and properly considered cleaning: maximum effective membrane operation, extends its life, ensures the quality of the filtrate, which as a result of translating into minimal energy consumption and reducing the range of membrane wear