Why anti infiltration less performance decline How to deal with

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The decline in the performance of the reverse osmosis membrane was mainly due to the film surface is contaminated, such as fouling, clogging of the membrane surface; or the film itself is the physical and chemical changes caused. Physical changes due to compaction effect caused by the decline in the water permeability of the membrane; chemical changes caused mainly due to fluctuations in the value of PH, such as the hydrolysis of cellulose acetate membrane; free chlorine aromatic amide film performance will deteriorate. The main reason for the blockage of reverse osmosis membrane fouling is caused due to the deposition of the membrane area and the growth of microorganisms. Which microbes not only to plug the film, and cellulose acetate erosion damage. Therefore, in the membrane must be to maintain a certain amount of residual chlorine, but Chlorine is too high will cause membrane performance will therefore be maintained in front of the cellulose acetate membrane Chlorine 0.1 to 0.5mg / L, while in the aromatic polyamide film before The residual chlorine is less than 0.1mg / L.
The reverse osmosis membrane cleaning process is a subtle and t roublesome work, the domestic film quality is not high enough. Multi-cleaning membrane fragile. In order to reduce the cleaning work, it is necessary to do a good job in the pre-treatment, strict water quality off, otherwise, "no end of trouble.water filter cartridge replacement
The processing method: on a regular basis with 0.1% formaldehyde solution, or 100mg / L concentration the new 诘 Seoul off circulation cleaning process at least 1 hour. Film already contaminated to use the 2% citric acid amine solution (pH = 4 ~ 8) for cleaning, or sodium hexametaphosphate, sodium bisulfite, dilute hydrochloric acid, etc. to prevent the fouling of manganese, iron, and carbonate. Sometimes with enzymatic detergent cleaning of organic matter. Cleaning pressure was controlled at 0.34 ~ 0.98Mpa (3.5 ~ 10kgf/cm2), cleaning the flow rate of 2 to 3 times the original water treatment velocity.
The decline in the performance of the reverse osmosis membrane was mainly due to the film surface is contaminated, such as fouling, clogging of the membrane surface; or the film itself is the physical and chemical changes caused. Physical changes due to compaction effect caused by the decline in the water permeability of the membrane; chemical changes caused mainly due to fluctuations in the value of PH, such as the hydrolysis of cellulose acetate membrane; free chlorine aromatic amide film performance will deteriorate. The main reason for the blockage of reverse osmosis membrane fouling is caused due to the deposition of the membrane area and the growth of microorganisms. Which microbes not only to plug the film, and cellulose acetate erosion damage. Therefore, in the membrane must be to maintain a certain amount of residual chlorine, but Chlorine is too high will cause membrane performance will therefore be maintained in front of the cellulose acetate membrane Chlorine 0.1 to 0.5mg / L, while in the aromatic polyamide film before The residual chlorine is less than 0.1mg / L.
The reverse osmosis membrane cleaning process is a subtle and troublesome work, the domestic film quality is not high enough. Multi-cleaning membrane fragile. In order to reduce the cleaning work, it is necessary to do a good job in the pre-treatment, strict water quality off, otherwise, "no end of trouble.
The processing method: on a regular basis with 0.1% formaldehyde solution, or 100mg / L concentration the new 诘 Seoul off circulation cleaning process at least 1 hour. Film already contaminated to use the 2% citric acid amine solution (pH = 4 ~ 8) for cleaning, or sodium hexametaphosphate, sodium bisulfite, dilute hydrochloric acid, etc. to prevent the fouling of manganese, iron, and carbonate. Sometimes with enzymatic detergent cleaning of organic matter. Cleaning pressure was controlled at 0.34 ~ 0.98Mpa (3.5 ~ 10kgf/cm2), cleaning the flow rate o f 2 to 3 times the original water treatment velocity.roof breathable membrane