Ultrafiltration membrane Ultrafiltration equipment membrane is the most important part of the ultrafiltration system, and its cleaning is essential for the normal operation of the system and the filtration effect. Therefore, it is necessary to determine whether the membrane of the ultrafiltration equipment needs to be cleaned. First of all, it is necessary to understand the cleaning principle of the membrane of ultrafiltration equipment. The cleaning of the membrane of ultrafiltration equipment is mainly to clean off the pollutants attached to the surface of the membrane and restore the filtration performance of the membrane through physical or chemical methods. Physical cleaning methods include hydraulic flushing, air-water mixed flushing, etc.;Chemical cleaning methods are done with acidic or alkaline cleaning agents. To determine whether the membrane of ultrafiltration equipment needs to be cleaned, it can be carried out from the following aspects:
1.Effluent quality. If the effluent quality deteriorates and cannot meet the needs of production and life, it means that the membrane of the ultrafiltration equipment has been polluted and needs to be cleaned.
2.Operating pressure. If the operating pressure of the ultrafiltration plant increases, the membrane is clogged and needs to be cleaned.
3.Cleaning cycles. According to the needs of production and life, a reasonable cleaning cycle can be set. If the actual cleaning cycle is shorter than the set cycle, it means that the membrane has been seriously polluted and needs to be cleaned more frequently.
4.Visual inspection. By observing the changes in the appearance of the membrane of the ultrafiltration equipment, it is possible to determine whether the membrane needs to be cleaned. If there are contaminants such as dirt and stains on the surface of the membrane, it needs to be cleaned immediately.
5.Instrumental testing. The use of conductivity meters, pressure gauges and other instruments can detect the contamination of ultrafiltration equipment membranes. If the conductivity is too high or the pressure is too low, the membrane is contaminated and needs to be cleaned.
To determine whether the membrane of ultrafiltration equipment needs to be cleaned, it is necessary to consider many aspects such as effluent quality, operating pressure, cleaning cycle, visual inspection and instrument testing. Only by cleaning the membrane of ultrafiltration equipment in time can its filtration performance and life be guaranteed, so as to ensure the quality of production and domestic water.