What should be paid attention to to prevent microbial growth of reverse osmosis membrane of edi industrial ultrapure water equipment during operation?
What should be paid attention to to prevent microbial growth of reverse osmosis membrane of edi industrial ultrapure water equipment during operation? Author of the article: In the case of today's rapidly evolving society, edi industrial ultra-pure water equipment industry has become a lot more popular products, many manufacturers are using ultra-pure water equipment industry edi, edi industrial ultra-pure water equipment reverse osmosis system During the long-term operation, some impurities will be trapped on the surface. This process is inevitable. When the impurities accumulate to a certain level, it will inevitably affect the operation of the equipment. The following editor will introduce the prevention of edi industrial ultrapure water equipment. What should be paid attention to when the permeable membrane microorganism grows and runs. 1. Regularly change the operating environment to make microorganisms unsuitable for the growth environment. The current methods are mainly to affect the growth of fungi by changing the pH value of the influent, reduce the reproduction speed, and even die; 2. Regularly add non-oxidizing sterilization A large number of operating experience has proved that: regular addition of non-oxidizing fungicides is the most effective means to control the growth of microorganisms in reverse osmosis during operation. In view of the current situation, it is recommended to do the dosing every week first, and gradually extend the dosing cycle after the system is stable; 3. Regular chemical cleaning, it is recommended to buy a special reverse osmosis cleaning agent for regular reverse osmosis cleaning. After the reverse osmosis membrane has been operated for a period of time, the substances trapped on its surface are difficult to remove by physical methods. Chemical cleaning can effectively remove the inorganic salts and organic microorganisms accumulated on the surface of the membrane, extend the service life of the membrane, and reduce the total production cost. ; 4. Regularly replace the filter element of the security filter. According to the security filter manual, it should be replaced when the pressure difference increases to 0.2MPa, but in actual production, it is found that when the pressure difference rises above 0.05, there are already a lot of impurities trapped (when the relevant staff found foreign objects inside the security filter) (The pressure difference is only 0.03MPa). At this time, the foreign matter that is still put into operation will enter the reverse osmosis interior with the influent and affect the operation of the reverse osmosis. Therefore, the inspection of the security filter should be the work content of the regular inspection. The filter element should be replaced in time; 5. Monitor the SDI, Fe, COD (Mn method), PH and turbidity in the reverse osmosis influent water to ensure that the reverse osmosis influent water quality meets its influent water quality requirements. What should you pay attention to about preventing microbial growth and operation of reverse osmosis membranes in edi industrial ultrapure water equipment? Hu’s related introduction is here and I hope it will be helpful to everyone. I hope that through the above introduction, it can effectively prevent microbial contamination.
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