Lefilter believes that the general reasons for frequent replacement of security filter elements are:

(1) The raw water quality is unstable and fluctuates frequently, resulting in too much particulate matter entering the filter element and shortening the cycle;

(2) The pretreatment operation effect is poor, the flocculant and scale inhibitor added in the pretreatment are incompatible with each other or do not match with the water source, and the viscous substances formed adhere to the surface of the filter element, resulting in the reduction of the effective filter area of the filter element and frequent replacement of the filter element;

(3) The quality of the filter element is poor. The inner and outer apertures of the filter element with poor quality are basically the same. In fact, only the outer layer plays the role of interception, while the filter aperture of the good filter element is reduced step by step from the outside to the inside. The filtering accuracy of the inner layer is 5 ± 0.5 µ m, with a large amount of pollution. It can also ensure that the effluent quality is qualified after a long time.

Measures to prolong the service life of filter element:

(1) The water source is generally fixed and cannot be easily changed;

(2) Improve the operation effect of pretreatment, optimize the dosage of flocculant and coagulant aid, select scale inhibitor suitable for water source, adjust each pretreatment equipment to achieve good operation state, and strictly follow the requirements of operation procedures to ensure that the quality of pretreated effluent is qualified;

(3) The brand filter element with guaranteed quality can not only prolong the service life of the filter element, but also ensure the effluent quality of the security filter.

For example, the filtration accuracy of geosmonics filter element is 5 ± 0.5 µ M. the new geosmonics purtrex filter element using Z. plex technology redefines all previous ro pretreatment performance and filter element construction standards. Z. Plex technology adopts short-diameter melt blown filter element, wide layer spacing and a three-dimensional fiber matrix purtrex filter element, which is especially suitable for water treatment applications, because fine sediment particles in water treatment applications are easy to cause pollution and blockage of reverse osmosis equipment. This filter element is unmatched in retaining dirt in water, with lower pressure loss and longer service life

Most similar filters are longer. Under the unloaded shell of the filter element, fibers and three-dimensional mesh form a variety of pores, which can effectively capture impurities. In the next filter layer, the number of small pores in the fiber structure of Z. plex technology is increasing until the center of the filter element, which can limit the service life of the filter element and sludge removal efficiency.

For micron filtration, the inner core is a filter layer. The inner core is a hot-melt bonding structure, with unparalleled integrity, downstream cleanliness and rigidity, and does not need to be equipped with a support core. Similarly, the bonding surface coating with strong permeability is very smooth, which can prevent the movement of loose fibers, which requires high purity

Application is critical.