Various substances dissolve in water, and in order to obtain clean water, it is necessary to treat the water. The most basic method is to use various media to filter impurities in the water. When different filtering media are used, different filtering effects can be obtained. When manganese sand is loaded, it can effectively remove mixtures of iron, manganese, etc. from water. When quartz sand and anthracite are loaded, it can effectively remove mixtures and colloids from water. When activated carbon is loaded, it can effectively remove odors and residual chlorine from water. It is widely used in the primary purification treatment of source water in industries such as pharmaceuticals, making the water transparent and drinkable. It has the advantages of small equipment footprint, easy operation and maintenance, large pollutant capacity, backwashing capability, and is made of high-quality stainless steel, meeting food hygiene requirements.