1. There are two types of membrane damage caused by air hammer when the remaining vapor in the reverse osmosis equipment operates at high pressure:

After the reverse osmosis equipment is completely drained, the process of starting from scratch involves increasing the gas pressure before the gas is discharged cleanly. It is necessary to gradually increase the gas pressure after the vapor with a downward pressure of two to four is discharged.

In the event of difficulties or water leakage in the connection heads of the pre-treatment equipment and its high-pressure water pump for reverse osmosis equipment, such as insufficient pre-treatment power supply, if the microfiltration becomes clogged, it is likely that some vapor will be digested and absorbed by the vacuum pump in the storage area where the problem occurs. It is necessary to remove or replace the microfiltration equipment to ensure that the pipeline does not leak. In summary, it is necessary to slowly adjust the pressure when there are no bubbles in the steam flow meter. During operation, it is important to notice that the gas pressure gradually decreases due to the presence of bubbles.

3. Environmental pollution of microbial strains caused by incomplete disinfection and poor maintenance of reverse osmosis equipment

What are the problems with the widespread application of composite acrylic resin films, as acrylic resin films have poor resistance to permanganate index. In application, it is necessary to promote chlorine and other disinfectants appropriately, and customers must pay attention to the prevention and treatment of microbial strains, which may also cause microbial strain infections. Many manufacturers produce purified water with microbial strains that exceed their budget due to insufficient disinfection and maintenance.

The first major manifestation is that the RO machinery and equipment did not use disinfectant for maintenance and upkeep at the original factory. After installation, the reverse osmosis equipment will not disinfect all pipelines and their pre-treatment equipment; The distance operation should not use disinfection and maintenance methods; There will be no scheduled pre-treatment of equipment and disinfection of reverse osmosis equipment; Loss of effectiveness or difficulty in concentration of maintenance fluid.

2. The method of shutting down the reverse osmosis equipment is incorrect

The device was shut down for rapid pressure reduction without thorough flushing. Due to the higher concentration of carbonate on the concentrated water side of the membrane compared to the source water, it is very easy to solidify stains and pollute the membrane. B. Use pre-treatment water with added chemicals for cleaning. Because water containing organic chemical drugs may cause membrane environmental pollution during the termination of machine equipment operation.

When preparing to shut down the reverse osmosis water purification equipment in advance, the addition of chemical drugs should be terminated, and the blood pressure should be slowly lowered to around 3 bar. Rinse with pre treated water for 10 minutes until the TDS of the concentrated water is close to the TDS of the source water.

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