The application of reverse osmosis equipment is becoming increasingly widespread. This equipment adopts reverse osmosis membrane separation technology and is an important device for removing most of the salts, viruses and other impurities in the raw water. It is also a key treatment link to ensure the quality of the effluent from the equipment. How can we ensure the better operation of reverse osmosis equipment? Let's take a look at the faults of reverse osmosis equipment and their analysis and handling below.

　　Fault Analysis of Reverse Osmosis Equipment

　　The main fault phenomena of reverse osmosis equipment fall into three categories: reduced water permeability, increased salt permeability (decreased desalination rate), and increased pressure drop. However, there are many causes for these faults. It is necessary to try to identify the essence of the problem from these fault phenomena as soon as possible, so as to implement maintenance and repair measures as soon as possible.

　　Common problems in reverse osmosis equipment are the decline in desalination rate and the reduction in product water volume. If either or both of them decrease slowly, it may be a common phenomenon caused by the formation of dirt or scale, which can be solved by appropriate cleaning. A sudden or rapid performance drop indicates that there is a problem with the processing system or improper operation. Problems have occurred and need to be resolved as soon as possible. Delaying the resolution will result in the reverse osmosis membrane being unable to restore its original performance.

　　The prerequisite for timely detection of problems is to keep corresponding records. When it is found that the desalination rate and water production of the system have decreased, the first step should be to calibrate the instruments to avoid misjudgment due to instrument issues. These instruments include conductivity meters, flow meters, pressure gauges, thermometers, etc. Secondly, the recorded operational data should be "standardized". Due to temperature and water ingressTDSChanges in recovery rate, service life and water flux, etc. will all cause variations in desalination rate and water production. The standardized water production volume and desalination rate are calculated and then compared with the initial operation data to confirm whether there are any faults in the system.

　　During the long-term operation of reverse osmosis devices, various contaminants such as colloids, microorganisms, inorganic scale, and metal oxides will gradually accumulate on the membrane surface. These substances deposit on the membrane surface, which can cause a decline in the performance of the reverse osmosis device. To restore the performance of the membrane, it is necessary to carry out chemical cleaning on the membrane.