Many purchasing and operation and maintenance friends will be concerned about a core issue when building pure water equipment and reverse osmosis water treatment systems, that is, how long the reverse osmosis membrane can be used.As the core consumables of water treatment equipment, the service life of the reverse osmosis membrane directly affects the operating cost of the entire equipment and the water quality of the effluent.Under normal working conditions, the service life of regular brand reverse osmosis membranes is generally 3-5 years, which is a common conventional service cycle in the industry.
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However, this number of years is not a fixed standard, and there is no absolutely uniform answer.For the same membrane element, some users need to replace it after 3 years, and some can be used for 5 years or more with careful maintenance.The biggest influencing factor is the quality of the water quality of the equipment, as well as the daily operation and maintenance details.The more complex the water quality and the more impurities, the faster the loss rate of membrane elements, and the service life will naturally be greatly shortened.
For example, tap water and clean water sources with perfect pretreatment have stable water quality, less sediment and pollutants, and the load on the reverse osmosis membrane is very low, and the service cycle can basically be stably maintained at 4-5 years.However, if it is river water, well water, high-turbidity surface water, or high-hardness, high-salinity raw water, the sediment, colloids, scale, and microorganisms in the water body will continue to attach to the surface of the membrane, which is likely to cause membrane clogging, fouling, and oxidation damage in the long run. Under such working conditions, the service life of the membrane will probably be shortened to about 3 years, or even shorter.
If you want to stabilize the performance of the reverse osmosis membrane and lengthen the service cycle, daily maintenance is particularly critical, and the operation is not complicated.First of all, we must do a good job of pre-treatment and maintenance, which is the first line of defense to protect the reverse osmosis membrane.Regularly clean and replace the filter elements of multi-media, activated carbon, and precision filters to intercept most impurities in the water, avoid the direct impact of large particles of pollutants on the membrane elements, and reduce membrane fouling from the root cause.The reverse osmosis membrane should be rinsed regularly.During the daily start and stop of the equipment, simple low-pressure flushing can wash away loose impurities attached to the surface of the film to avoid the accumulation and curing of pollutants.There are also equipment that has been shut down for a long time. It is necessary to do a good job of moisture-proof and anti-breeding treatment, and regularly turn on and rinse to prevent the growth of bacteria and algae from corroding the membrane components.In addition, it is also necessary to do regular chemical cleaning according to water quality conditions.If the water volume of the equipment is found to become smaller, the desalination rate decreases, and the pressure difference increases, it means that the membrane body has been severely polluted. Timely and targeted cleaning can effectively restore the membrane performance and avoid early scrap.
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In fact, most of the loss of reverse osmosis membranes is caused by negligence in daily operation and maintenance.Doing a good job of basic maintenance can not only ensure the stability of pure water quality, but also significantly reduce the cost of replacement of consumables, and make the operation of the entire reverse osmosis water treatment equipment more stable.
If you need to purchase reliable reverse osmosis equipment, supporting membrane components, or want to customize a water treatment plan adapted to working conditions, you can directly find DIEN water treatment.Our manufacturers directly supply all kinds of reverse osmosis water treatment equipment and filtration consumables, provide one-stop services for equipment installation, operation and maintenance guidance, and after-sales maintenance, and adapt to various industrial and commercial water purification scenarios to help customers save worry and effort and reduce operating costs.
