Powdered activated carbon is a highly efficient adsorbent material made from high-quality anthracite, wood, coconut shells, etc., through crushing, carbonization, high-temperature activation, and fine grinding. The particle size is typically between 200-400 mesh (75-38μm), and it appears as a fine black powder. Its specific surface area can reach 800-1500 m²/g, with a pore structure mainly composed of micropores. It possesses core advantages such as extremely fast adsorption speed, good dispersibility, high cost-effectiveness, and wide applicability. It can quickly capture small-molecule pollutants, pigments, odors, etc., in liquids or gases, making it an economical key material in food processing, water treatment, decolorization, and purification.

Powdered Activated Carbon Product Details:

I. Core Raw Materials and Production Process

Raw Material Selection: High-carbon content anthracite, natural wood chips, and high-quality coconut shells are carefully selected. Coconut shell-based products have superior adsorption performance, coal-based products are lower in cost, and wood-based products have outstanding decolorization effects. The choice can be flexible depending on the application scenario.

Refining Process: The process involves raw material screening → crushing and pulverizing → low-temperature carbonization (400-600℃) → high-temperature activation (800-950℃, steam/carbon dioxide activation) → fine grinding (controlling particle size distribution) → impurity removal and purification → drying and packaging. No harmful additives are used throughout the process. Some food-grade products undergo additional acid washing and water washing to ensure purity meets standards.

II. Key Performance Indicators

Adsorption Performance: Iodine adsorption value 600-1200 mg/g, methylene blue adsorption value 100-200 mg/g, specific surface area 800-1500 m²/g, caramel decolorization rate ≥90% (food grade), adsorption rate for organic matter and pigments ≥85%. Basic Properties: Particle size 200-400 mesh (pass rate ≥95%), moisture ≤10%, ash content ≤8%, fixed carbon ≥85%, pH value 6.0-9.0, odorless and tasteless, heavy metal (lead, arsenic, mercury) content ≤0.001% (food grade/drinking water grade).

Safety Standards: Complies with national standards for “Food Additives – Plant-based Activated Carbon (Wood-based Activated Carbon)” and “Activated Carbon for Drinking Water Treatment,” and can directly contact food and drinking water without secondary pollution.

III. Core Product Advantages

Extremely Fast Adsorption Rate: The powder form fully exposes the specific surface area, resulting in a large contact area with pollutants. The adsorption reaction is completed instantly, more than 50% faster than granular activated carbon, making it suitable for emergency treatment scenarios.

Good Dispersibility and No Residue: Easily soluble in water or other media, it can be uniformly dispersed in the treatment system without adsorption dead zones. It can also be quickly separated through filtration and sedimentation, leaving little residue.

Excellent cost-effectiveness: The production process is relatively simple, and the cost per unit adsorption capacity is lower than that of granular and columnar activated carbon, making it suitable for large-scale batch processing and reducing overall operating costs.

Highly targeted functions: By adjusting raw materials and activation processes, customized models can be created for decolorization, deodorization, and heavy metal adsorption, adapting to different pollutant treatment needs.

IV. Main Application Areas

Food and Beverage Processing: Decolorization and impurity removal in the sugar industry (sucrose, glucose, fructose, etc.); decolorization, deodorization, and removal of turbidity in liquor, beer, juice, and beverages; purification and refining of vinegar, soy sauce, and condiments while preserving product flavor.

Water Treatment and Purification: Emergency treatment in waterworks (e.g., sudden odor, excessive organic matter); decolorization and removal of COD/BOD and heavy metal ions from industrial wastewater (printing and dyeing, papermaking, pharmaceuticals, electroplating); rapid deodorization and purification of swimming pool water and landscape water.

Chemicals and Pharmaceuticals: Decolorization and purification of chemical raw materials and solvents; refining of pharmaceutical intermediates and decolorization and impurity removal from finished drugs in the pharmaceutical industry, removing harmful impurities and odors.

Other applications: exhaust gas treatment (adsorption of small molecule pollutants in waste incineration plants and chemical exhaust gases), soil remediation (adsorption of pesticide residues and heavy metals in soil), feed additives (adsorption of mycotoxins in feed), and purification of cosmetic raw materials.

V. Specification Selection and Usage Recommendations

Specification Selection: For food decolorization, 300-400 mesh high methylene blue value is recommended; for water treatment, 200-300 mesh high iodine value is recommended; for chemical purification, customized modified products (such as impregnation type) are recommended.

Usage Recommendations: For liquid phase treatment, the dosage is generally 0.1-5 g/L, with stirring time of 10-30 minutes, followed by filtration and separation; for gas phase treatment, it can be made into adsorption cotton, filter layer, or mixed with other adsorption materials; it should be stored in a sealed, dry, and ventilated place to avoid moisture and clumping.