What Will Cause The Service Life of Ro Water Desalination Treatment Systems to Be Shortened?
Improper Operation of RO Water Desalination Treatment Systems Causes Damage to Membrane Performance
There is residual gas in RO Water Desalination Treatment Systems operating under high pressure, forming an air hammer that will damage the reverse osmosis membrane.
Two situations often occur:
1. After the reverse osmosis equipment was emptied, when it was re-operated, the gas was quickly boosted before the gas was exhausted.
2. When the joint between the pretreatment equipment and the high-pressure pump is not well sealed or leaks (especially the microfilter and its subsequent pipelines leak). When the pretreatment water supply is insufficient, if the microfiltration is clogged, if the seal is not Good places will suck in some air due to the vacuum.
Incorrect Method When Shutting Down RO Water Desalination Treatment Systems
1. Rapid pressure reduction without thorough flushing when shutting down. Since the concentration of inorganic salts on the concentrated water side of the membrane is higher than that of the raw water, it is easy to scale and pollute the membrane.
2. Rinse with pretreated water adding chemical reagents. Water containing chemical reagents may cause membrane fouling during equipment outages.
Inadequate Disinfection And Maintenance of Reverse Osmosis Equipment Leads to Microbial Contamination
Microbial contamination is prone to occur during the use of composite polyamide membranes. The reasons include incorrect addition of chlorine and other disinfectants and users' insufficient attention to microbial prevention. Specific manifestations include: failure to use disinfectant for maintenance before leaving the factory, failure to disinfect pipelines and pretreatment equipment after installation, failure to take disinfection and maintenance measures during intermittent operation, failure to regularly disinfect pretreatment equipment and reverse osmosis equipment, failure of the maintenance solution or The concentration is not enough.
Reverse Osmosis Equipment Poor Monitoring of Residual Chlorine
(1) If the pump for adding medicine fails or the medicine solution fails, or the membrane is damaged by residual chlorine when the activated carbon is saturated.
(2) Damage to membrane performance caused by untimely cleaning and incorrect cleaning methods
During the use of reverse osmosis equipment, in addition to the normal attenuation of performance, the attenuation of equipment performance due to pollution is more serious. Common pollution mainly includes chemical scale, organic matter and colloid pollution, microbial pollution, etc. Different pollutions show different symptoms. There are also certain differences in the symptoms of membrane fouling proposed by different membrane companies.
