The performance of reverse osmosis membranes in water purification equipment gradually weakens after long-term use. However, some film properties are damaged due to operational errors, and these unnecessary troubles can actually be avoided. Firstly, if the reverse osmosis membrane of pure water production equipment is not cleaned or cleaned in a timely manner, its performance will be greatly damaged. During the operation process, in addition to some normal performance degradation, sometimes it may also be contaminated by microorganisms, organic matter, and chemical stains, causing serious damage to the performance. Research has shown that the challenges vary depending on the duration of pollution.

The reason why the reverse osmosis membrane of the water purification equipment can be damaged is taking calcium carbonate pollution as an example. When the pollution time is one week, the desalination rate will rapidly decrease, the pressure difference will gradually increase, and the water production rate will not be very high. At this time, citric acid can be used for cleaning. If the pollution time is extended to one year, it will have a significant impact on the amount of aquatic products, and the salt flux will greatly increase.

Secondly, it is necessary to identify the types of pollution by taking into account factors such as the source water body, pollution index, and equipment performance changes. When the microfiltration system rapidly blocks or the pressure difference increases rapidly, colloidal contamination is likely to occur. When the total number of bacteria in water and extracted water is high, it is likely to be contaminated by microorganisms. This situation is generally caused by timely maintenance and disinfection or operational errors.

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