Diatomite Powder Light Porous Adsorption Capacity

Product Overview – Lightweight Porous Adsorption Power

Diatomite powder, also known as diatomaceous earth, is a naturally occurring, soft, siliceous sedimentary rock that is easily crumbled into a fine white to off-white powder. Its unique structure consists of microscopic, hollow, cylindrical particles with high porosity and a large surface area, typically 10–20 m²/g. This light, porous morphology gives diatomite exceptional adsorption capacity, making it an ideal filtration aid, absorbent, and functional filler across numerous industries. With a purity ranging from 80% to 95% and available in industrial, food, and feed grades, our diatomite powder meets the highest quality standards for demanding applications.

In water treatment, diatomite powder demonstrates remarkable adsorption capabilities. Its porous structure effectively binds and removes contaminants such as heavy metals (including lead, arsenic, and cadmium), organic compounds (like pesticides and dyes), and suspended solids, resulting in clearer, safer water. This makes it an essential component in municipal drinking water purification, industrial wastewater treatment, and swimming pool filtration. Furthermore, diatomite's inert chemical nature ensures it does not introduce harmful byproducts, supporting environmentally friendly water management practices. In brewing, diatomite powder is widely used as a filter aid to clarify beer, improve stability, and extend shelf life, while also acting as a fining agent to remove haze-forming proteins and yeast cells.

Key Applications of Diatomite Powder

Beer and Beverage Filtration

In the brewing industry, diatomite powder is a standard filter medium for both primary and secondary filtration. Its high porosity allows for fast flow rates while retaining fine particles, achieving brilliant clarity without stripping desirable flavors or nutrients. The powder is typically pre-coated onto filter screens or added as a body feed to maintain consistent filtration performance. This results in a longer filter cycle, reduced downtime, and lower production costs. Additionally, diatomite is used in wine, juice, and edible oil clarification, where it enhances product appearance and stability.

Water and Wastewater Treatment

Beyond adsorption, diatomite's mechanical filtration capability makes it a superior choice for removing turbidity and micro-organisms. In membrane bioreactors (MBRs) and conventional sand filter replacements, diatomite improves filtration efficiency by 30–50%. It is also effective in polishing step for reverse osmosis pretreatment, reducing silt density index (SDI) and protecting expensive membranes. In heavy metal remediation, diatomite's surface charge can be tailored through chemical modification to enhance specific adsorption, making it a versatile tool for meeting stringent discharge regulations.

Agriculture and Industrial Uses

In agriculture, diatomite powder acts as a natural soil conditioner, improving water retention and aeration while providing trace minerals. It is also used as an anticaking agent in fertilizers and animal feed. In the paint and coatings industry, diatomite serves as a matting agent and texture enhancer. Its high brightness and low abrasion make it suitable for plastic fillers, rubber reinforcement, and paper coating. Additionally, the oil and gas sector employs diatomite as a filtering aid for drilling fluids and as a catalyst support in chemical processes.

Technical Specifications – Premium Diatomite