In the process of drinking water treatment, ultrafiltration can be used as a pretreatment to purify drinking water with high aspect ratio. According to the effects of concentration, separation and purification, the water can meet the daily edible standards. In water treatment, the application of hollow fiber ultrafiltration membrane is more common. Since the water contains colloidal solutions, suspended solids and dissolved chemical substances, it will cause environmental pollution of the membrane. Therefore, in order to increase the service life of ro uf membrane and reduce the cost of water treatment, preparations and advanced solutions for the ultrafiltration water supply should be prepared in advance to ensure the safety of drinking water. Ultrafiltration membrane technology has played a very important role in ensuring the quality of drinking water in the future, and cannot be replaced by other methods in the entire process of water purification.

In order to make the drinking water meet the edible standard and ensure the safety of drinking water, the ultrafiltration membrane technology must be pretreated before being used in the water treatment process.

Some colloidal solutions and suspended solids can be removed, but not completely. Adding a coagulant to the raw water can effectively remove the chemical substances and suspended solids in the colloidal solution, and adding a coagulant when necessary can improve the actual removal effect.