To ensure that the resin can play its role and maintain good properties during use, it should be used reasonablyPUROLITEPerlite resin is of great significance for extending the service life of resins. Here we summarize three situations where anion resins are contaminated by regeneration acid for everyone.

　　(1) There are three situations where the British Polite resin can be contaminated. Due to poor stratification, the anion and cation resins will mix together. When the cation resin is regenerated, this part of the anion resin is often worn or broken, causing the particles to become smaller and the density to decrease, and they will mix with the anion resin and be difficult to separate. At this time, the anion resin is prone to acid contamination. One of these situations is due to design reasons. If the position of the middle drainage pipe is designed to be too high, causing the anion resin to be at the lower part of the middle drainage pipe, or due to the incorrect ratio of cation and anion resins during resin filling, with less cationic resin and more anion resin being installed. This also causes some anion resins to be contaminated by acid during regeneration. The third situation is the degradation and hydrolysis of anion resins. During the use of Polite strong acid softening resin, the strong base groups continuously degrade and the weak base groups continuously increase. When these weak base groups come into contact with the regenerant, they form salt-type weak base groups. During forward washing, due toPHWhen the value rises, the weak base groups will undergo hydrolysis and release acid, which affects the effluent from the mixed bedPHThe value is too low.

　　(2)Anion resin is contaminated by organic substances. The common organic substances that contaminate anion resin are humic acid and fulvic acid. These organic acids quickly carry negative charges and adsorb onto the anion resin, not only greatly reducing the exchange capacity of the anion resin, but also, under certain conditions, the organic acids will be released, resulting in water output from the mixed bed of the secondary reverse osmosis purified water equipmentPHThe value is low and the electrical conductivity increases.

　　(3)Uneven mixing of cation and anion resins in the multi-functional ultrapure water system can cause the cationic resin deposited at the bottom to slowly release the residual acid regenerant, resulting in acidic water leakage in the initial stage of the mixed bed's operation. Therefore, resin mixing is also a relatively important operation.

　　After a period of operation, the water purification effect of the mixed bed resin will deteriorate. At this point, it is necessary to enhance the water purification capacity. The service life of mixed bed resin is relatively long, generally1~2During operation, the resin regeneration has a certain cycle. The exchange cycle of the mixed bed resin is four to five days, with regeneration occurring approximately every two days. To meet the production requirements, the resin needs to be constantly regenerated.

　　The above is provided by Beijing Yuanlai Water Treatment Equipment Co., LTD. For more detailed information, please contact us.