Diatomaceous earth has the characteristics of porosity, strong adsorption, small bulk density, high melting point, stable chemical properties, incompressibility and stability, non-toxic and harmless. The produced filter aid is used in industries such as medicine, food, cosmetics, rubber, plastics, paint, soap making, environmental protection, etc. It has the effect of improving product stability, elasticity and dispersibility, as well as enhancing product strength, wear resistance and acid resistance.

1. In the food and pharmaceutical industry, diatomaceous earth is used as a filter aid in medicine and food
Diatomaceous earth has strong adsorption capacity, so it is used as a filter aid in the food industry to play a role in sterilization, impurity removal, and odor removal. For example, using diatomaceous earth filtration in the brewing process can continuously update the filter bed, with fast filtration speed and high yield; Large surface area, strong adsorption capacity, able to filter out particles ranging from 0.1 to 1.0um, reduce alcohol loss by about 1.4%, and improve production operating conditions; In the pharmaceutical industry, diatomaceous earth is used for filtering antibiotics, glucose, vitamins, and extracts of traditional Chinese medicine, with better effectiveness.
2. In the environmental protection industry, diatomaceous earth is used for sewage treatment.
Diatomaceous earth has stable chemical properties, strong adsorption capacity, good filtration performance, and is insoluble in any strong acid. Therefore, it is used for wastewater treatment. For example, the use of diatomaceous earth flocculation precipitation method for pre-treatment of garbage leachate can preliminarily reduce CODCr and BOD5 in the leachate, remove pollutants such as SS, improve its biochemical properties, reduce load, and create good conditions for the normal operation of subsequent biochemical treatment.
Diatomaceous earth filters can better improve the water quality of circulating water treatment effluent in swimming pools, and can save water and electricity in the operation and management of swimming pools.
3. In the construction industry, diatomaceous earth is used for the production of road asphalt to improve its performance.
Diatomaceous earth has the characteristics of light weight, soft texture, porosity, acid resistance, and stable chemical properties. Therefore, diatomaceous earth is used for modified asphalt in asphalt concrete pavement. It not only has low cost, simple construction, and guaranteed raw material supply, but also can improve the durability, wear resistance, thermal stability, compressive strength, and skid resistance of the pavement, reduce pavement diseases such as oil bleeding, grouting, and rutting, which is conducive to improving the service life of the pavement and saving maintenance and repair costs of highways.
4. In the construction industry, diatomaceous earth is used to make insulation bricks.
With the increasing scarcity of land resources and the increasing number of high-rise buildings, a large number of lightweight wall materials have emerged to reduce the weight of buildings. Sintered bricks made from diatomaceous earth are highly favored due to their low density, high strength, insulation, sound insulation, and other properties; Diatomaceous earth is not only an excellent raw material for preparing lightweight insulation boards, calcium silicate insulation materials, diatomaceous earth insulation bricks, diatomaceous earth amorphous insulation materials, and insulation pipes, but also one of the raw materials for waterproofing and anti-seepage. In addition, diatomaceous earth not only has the characteristics of non flammability, sound insulation, waterproofing, lightweight, and thermal insulation, but also has environmental protection effects such as dehumidification, deodorization, and indoor air purification.
5. Coatings industry
Diatomaceous earth is used to make interior wall coatings, which do not reflect light on the walls and provide soft indoor lighting. This type of wallpaper coated with diatomaceous earth is called a “breathable wall.”. The use of diatomaceous earth in exterior wall coatings is also developing, and its prospects are broad. In addition, diatomaceous earth is also widely used in industrial fields such as resin, concrete, cement fillers, and various decorative insulation coatings. For example, special cement made of diatomaceous earth can be used as low density cement for petroleum drilling, or in fractured and porous formations to prevent cement slurry leakage and prevent the blockage of low-pressure oil and gas layers due to excessive weight of cement slurry.
6. Rubber industry
Diatomite is used as filler in various rubber products such as vehicle tires, rubber pipes, V-belts, rubber rolling, conveyor belts, car mats, etc. Its role is to significantly enhance the rigidity and strength of products, and improve the heat resistance, wear resistance, heat preservation, aging resistance and other properties of products.
7. In the chemical industry, diatomaceous earth is used as a catalyst carrier.
Diatomaceous earth is an important catalyst carrier used in oxidation, reduction, hydrogenation, dehydrogenation, hydration, polymerization, transformation, synthesis, alkylation, desulfurization and other reactions. From the perspective of usage, it is widely used in organic chemical reactions; However, in terms of consumption, it is mainly used to manufacture vanadium catalyst carriers, nickel catalyst carriers, and TiO2 carriers.
8. Diatomite is the main material of cosmetics and facial mask
Diatomaceous earth facial mask is mainly used to adsorb substances in the skin by the adsorption performance of diatomaceous earth and play the role of skin care.
9. Agriculture
Diatomaceous earth, used as an insecticide, has many advantages such as being non-toxic, odorless, effective in killing insects, not polluting the environment, and ensuring the quality of grain storage. It is favored by many pest control experts; Diatomaceous earth particles are used as soil amendments and are a good carrier for fertilizers and water needed by plants. They can effectively regulate the absorption and release of water according to soil moisture, and can also have moisturizing, breathable, and drying functions. They play a significant role in plant root growth and soil and water conservation; Diatomaceous earth is widely used as an adsorbent in the storage process of grains and seeds.