As of May 2026, the global high-purity processed diatomite powder market is witnessing robust steady growth, driven by rapidly rising demand for natural porous, low-carbon and eco-friendly functional filter materials across environmental governance, food processing, construction and agricultural sectors. Latest industry data shows a 7.1% year-on-year increase in global market volume in the first quarter of 2026, with projections indicating the overall market size will surpass $1.9 billion by 2031, fueled by the tightening of global environmental emission standards and the accelerated penetration of natural eco-friendly building materials.

▲ Water Treatment & Environmental Governance

The water treatment and environmental governance sector remains the largest end-user market, accounting for over 42% of total global demand, where processed diatomite powder is highly valued for its unique microporous structure, strong adsorption capacity, excellent chemical inertness and large specific surface area. It is widely used as a core filter medium in industrial sewage heavy metal treatment, drinking water purification and industrial waste gas filtration, which can effectively adsorb suspended solids, residual heavy metal ions and peculiar odor molecules, while maintaining stable filtration efficiency under high-temperature and corrosive environments. Growing demand for clean water treatment in North America, the European Union and East Asia has significantly accelerated market penetration, especially in municipal sewage upgrading projects and industrial hazardous waste treatment facilities.

◆ Food & Beverage Processing

In the food and beverage processing industry, high-purity food-grade diatomite powder is increasingly widely used in beer filtration, fruit juice clarification and edible oil decolorization thanks to its non-toxic natural composition, good permeability and no interference with product flavor. Its porous structure can efficiently intercept suspended impurities and yeast residues, while retaining the original flavor and nutritional ingredients of products, which fully complies with FDA and GB 2760 food safety standards, and is recognized as a safe and efficient natural filtration aid by the global food processing industry.

■ Green Building & Functional Materials

In the field of green building and functional materials, the application scale of modified diatomite powder is expanding rapidly. More building material developers integrate it into indoor formaldehyde-removing coatings, diatom mud decorative wall materials and air purification panels by virtue of its natural continuous adsorption and decomposition ability for indoor volatile organic compounds (VOCs), adjustable indoor humidity and natural flame retardancy.

★ Technological Innovation & Product Upgrades

Technological innovation is continuously upgrading the industrial product system. A new generation of ultra-fine activated modified diatomite powder has entered the market, featuring average pore size controlled within 0.1–1μm, specific surface area over 65m²/g, and surface thermal activation treatment, which significantly improves the adsorption capacity and impurity loading capacity compared with traditional products.

○ Sustainability as Core Growth Driver

Sustainability is the core endogenous driving force for market growth. Unlike synthetic adsorption materials that rely on high-energy chemical synthesis, diatomite is a natural siliceous sedimentary rock formed by the accumulation of diatom remains, which only requires physical purification, low-temperature calcination and grinding processing, with extremely low carbon emissions in the whole production process.

Currently, over 77% of the industry’s leading production enterprises have implemented green mining management, dry-process energy-saving activation technology and tailings comprehensive utilization systems, which greatly reduces the environmental impact of the production process.

▶ Global Supply Chain Maturity

The maturity of the global supply system has improved significantly in recent years. Mainstream head enterprises have expanded vertical integration from raw mineral exploration to deep processing of finished modified products, and built regional processing and distribution centers in major demand regions such as China, North America and Western Europe, which has effectively shortened the product supply cycle.

In response, leading enterprises are increasing investment in intelligent graded screening systems, surface modification technology research and development, and digital quality traceability systems, to stabilize product quality and reduce comprehensive operating costs.

● Industry Analyst Outlook

Industry analysts pointed out that in-depth collaborative innovation between mineral processing enterprises, environmental material research institutions and downstream terminal application enterprises will be the key to opening up new growth space for the industry. Emerging application scenarios span three critical fields:

With its natural environmental protection attributes, excellent adsorption performance and wide application prospects, the high-purity processed diatomite powder market will maintain sustained growth in the future, becoming an increasingly important cost-effective green functional environmental material in the global transformation to low-carbon environmental protection and healthy sustainable development.