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Cleaning of Coalesced Separation Cartridges

Agglomerated separation cartridge is a common type of cartridge, widely used in the filtration process of liquid and gas. It is based on the principle of agglomeration separation and separates solid-liquid or liquid-liquid mixtures such as suspensions, particles and liquid droplets by means of an agglomeration layer inside the cartridge, thus realising filtration and purification effects.

How do I clean the coalescing separation cartridge?

1. Backwashing: This is a commonly used cleaning method to remove clogging on the cartridge by reversing the flow of high-velocity liquid or gas. Backwashing washes away particles from the agglomerated and filtered layers, restoring the flux and efficiency of the cartridge. Backwashing can be carried out with water, solution or compressed air, depending on the type of cartridge and application scenario.
2. Chemical cleaning: For specific pollutants or organic matter on the filter element, chemical cleaning methods can be used. According to the nature of the pollutants, select the appropriate cleaning agent for soaking, circulation or rinsing, in order to remove the pollutants attached to the surface of the cartridge. Chemical cleaning requires attention to select the appropriate cleaning agent and operating conditions to avoid damage to the filter element material.
3. Ultrasonic cleaning: ultrasonic cleaning using ultrasonic high-frequency vibration, can effectively remove particles and pollutants on the surface of the cartridge. The filter element can be placed in the ultrasonic cleaning tank, through the ultrasonic vibration effect, so that the particles attached to the filter element to loosen and fall off from the surface. Ultrasonic cleaning can be used in combination with other cleaning methods to improve the cleaning effect.
Before performing cartridge cleaning, it is recommended to refer to the cartridge manufacturer’s guidelines and recommendations. Different cartridge types and materials may have specific cleaning requirements and restrictions. Proper cleaning methods and intervals will ensure the long-term reliability and filtration of the cartridge.

Cleaning of Coalesced Separation Cartridges#2

How can I tell if the cartridge has regained its flux and filtration efficiency after cleaning of the coalescing separation cartridge?

1.Observe changes in pressure drop: Before and after cleaning, monitor changes in pressure drop across the cartridge. Pressure drop is the resistance against which a liquid passes through the cartridge. If the cartridge is clogged, the pressure drop will increase. After cleaning, the pressure drop should decrease if the cartridge’s flux and filtration efficiency are restored. By comparing the pressure drop before and after cleaning, you can initially judge whether the filter element has restored the flux and filtration efficiency.

2.Filtration effect test: Use a standard particulate or pollutant solution to test the filtration effect of the cartridge. After cleaning, pass the test liquid through the cartridge and collect the filtrate for analysis. If the concentration of particles or pollutants in the filtrate is significantly reduced, it can be shown that the cartridge has recovered its filtration effect when compared with the test results before cleaning.

3.Flux test: After cleaning, the flux of the cartridge is tested by measuring the flow of liquid through the cartridge per unit of time. If the flux is restored to the level before cleaning or close to the level before cleaning, it can be considered that the flux of the cartridge is restored well.

4.Actual application test: In actual application, reinstall the cartridge into the equipment for normal operation and processing. Observe the performance of the cartridge in the process of using, such as the quality of filtrate, the stability of operation. If the cartridge can meet the expected filtration requirements in the actual application, and there is no abnormal situation, it can be considered that the cartridge has restored the flux and filtration efficiency.

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