The pretreatment system of reverse osmosis water treatment equipment usually consists of polypropylene fiber (PP) filters and activated carbon (AC) filters. For raw water with higher hardness, a softening resin filter is also required. The PP filter element can efficiently remove contaminants such as mechanical particles, rust, and large gel-like substances that are more than 5 μm in the raw water, and protects the subsequent filter, which is characterized by large amount of pollutants and low price. The softening resin can remove most of the calcium and magnesium ions in the raw water to prevent fouling of the subsequent RO membrane surface and improve the water recovery rate. It is one of the more effective water treatment methods in the existing technology: the raw water has a higher water hardness, and the reverse osmosis of the core is 0001 micron. The core filtration technology, water alkali elimination, odor, and 1 micron PP fine cotton filter are used for pretreatment. Improve the system, chemical residues more than 95%, heavy metals, it can effectively deal with salt in water (such as calcium: remove heterochromatic, magnesium and other hardness impurities), better safety performance and greater water flux and other characteristics, Or pure water demand: remove the different color, odor, it has a higher strength, the water is pure water, sodium ions, heavy metals, heavy metals.
