Diatomite: Premium Natural Filter Medium Widely Applied in Water Treatment, Food & Industrial Liquid Purification

Diatomite is a natural biogenic siliceous mineral formed from ancient diatom shell sediments, featuring distinctive honeycomb microporous structure, stable chemical inertia, controllable permeability and excellent interception & adsorption capacity. After scientific crushing, calcination purification and precise grading screening, customized grades including 10#, 300#, 500# and corresponding 325-mesh specifications are formed. It serves as an economical, safe and efficient core filter aid, extensively applied in drinking water & sewage treatment, food beverage clarification and industrial liquid filtration scenarios. Against the backdrop of stricter environmental discharge standards and upgraded food safety requirements globally, high-quality graded diatomite has become an indispensable filtering material to ensure liquid purification quality and stable production operation.

Application in Drinking Water Treatment & Sewage Purification

Diatomite filter media relies on its developed pore structure to physically intercept particulate pollutants and adsorb soluble harmful substances synchronously. In municipal tap water production lines, diatomite filtration units effectively trap sediment, suspended particles in raw water and obviously reduce water turbidity, laying a solid foundation for subsequent disinfection treatment to reach domestic drinking water standards. For industrial wastewater, domestic sewage and aquaculture wastewater, it can adsorb organic pollutants, heavy metal ions and residual flocculent sludge. It optimizes effluent water quality, lowers the dosage of flocculants, cuts overall sewage treatment operating costs and helps enterprises satisfy formal environmental protection discharge requirements. Natural diatomite brings no secondary pollution to water bodies during the whole filtration process, conforming to the concept of green water treatment.

Food & Beverage Clarification Filtration

Food-grade calcined diatomite complies with food safety specifications, which is the mainstream filter aid for clarification of beer, white spirit, fruit juice and edible oil. Taking beer production as a typical case: a great deal of yeast, macromolecular protein and tiny suspended impurities will be generated in the fermentation stage. Adopting matched 300# diatomite or compound formula of 300# mixed with 10# (325 mesh) can efficiently intercept these impurities without destroying the intrinsic flavor substances of beer. The finished beer becomes bright and transparent, with purer taste and longer shelf life. It is also suitable for clarification of edible oil, fruit juice and syrup: remove colloidal precipitates and residual solid impurities, improve product appearance clarity and guarantee food safety during processing.

Industrial Liquid Precision Filtration

Specially graded 500# diatomite is targeted for various industrial oil liquid and chemical solution purification.

Lubricating oil & hydraulic oil filtration: intercept metal wear debris, mechanical impurities and viscous colloid inside oil liquid. The purified oil keeps good lubricating performance, reduces equipment abrasion and effectively extends the service life of hydraulic systems, bearings and mechanical equipment;

Electroplating solution filtration: continuously filter out suspended solid particles and impurity colloids in plating bath, avoid pinholes, blemishes and unevenness on finished plating layers, stabilize plating solution quality and greatly elevate surface finished quality of electroplated workpieces. Besides, it can also be matched with plate-and-frame filter presses, vacuum drum filters and other mainstream filtering equipment according to different liquid viscosity and impurity characteristics, realizing stable long-cycle continuous filtration production.

Product Grading Matching & Enterprise Supporting Advantages

Our company supplies diatomite filter aids with complete specifications: 10#, 300#, 500# conventional grades as well as standard 325-mesh powder. We support customized proportion mixing such as 300#+10# compound formula according to customer actual working conditions.

Food-grade products pass food safety inspection standards, with qualified heavy metal indicators;

Industrial grade products feature stable permeability, uniform particle size grading and excellent dirt-holding capacity; All products are attached with complete COA inspection reports, MSDS safety data sheets and ISO quality system certification. Supported by automatic production lines and batch-by-batch inspection, sufficient spot inventory is prepared for bulk orders, container export and small-batch trial orders. Our technical team can recommend optimal diatomite model and feeding scheme based on on-site liquid conditions and filtering equipment, providing one-stop filtering technical solutions.

Industry Prospect

With increasingly stringent supervision over food safety and industrial environmental protection, the market demand for high-performance safe filter aids keeps growing. Compared with synthetic filter materials, natural diatomite has prominent advantages of low cost, high dirt holding capacity, green environmental protection and easy waste treatment. It will maintain important market position in water purification, food processing and industrial fluid filtration fields, and continuously empower high-efficiency, low-cost and green purification production for various industries.

FAQs about Diatomite

Which model diatomite is suitable for different filtering scenarios?

Water treatment general choice: conventional 300#; Beer & edible oil clarification: 300# or 300# blended with 10# (325 mesh); Lubricating oil, electroplating liquid precision filtration: 500#.

Is food-grade diatomite safe for food contact filtration?

Yes. Our food-grade diatomite adopts high-temperature flux calcination and purification treatment, heavy metal and soluble harmful substance indexes meet relevant food safety standards, safe for beverage and edible oil filtering application.

Can customized blending schemes and technical guidance be provided?

We support customized proportion collocation of different specifications of diatomite, provide free sample testing, and offer targeted process suggestions according to customers’ on-site filtration equipment and liquid characteristics.