1.Bloody Lessons! 90% of Companies Have Fallen into the Trap

Pitfalls that 90% of companies have fallen into “An automotive accessories company in East China was ordered to stop and correct its illegal behavior and fined 180,000 yuan for misusing activated carbon with unqualified technical indicators and violating relevant regulations of the Ministry of Ecology and Environment. The company was fined 180,000 yuan, and its related facilities and equipment were sealed. The responsible personnel were transferred to the public security organs for administrative detention…” “In order to reduce costs, a dye factory used low-priced activated carbon with substandard iodine value to treat dye wastewater. As a result, the activated carbon’s adsorption capacity for dye molecules was seriously insufficient, and the wastewater decolorization effect was poor, unable to meet the emission standards. The environmental protection department ordered it to rectify within a time limit, and the company had to re-purchase high-iodine value activated carbon. The cost of replacing the activated carbon plus the loss of production during the rectification period totaled more than 500,000 yuan…” These shocking cases tell us: choosing the wrong activated carbon = wasting environmental protection costs + reducing production efficiency. 90% of companies don’t know: the type, index, and scenario of activated carbon must be accurately matched!

2.Core dimensions that must be known when choosing activated carbon

03.Classification by function: Adsorption accuracy determines success or failure

Microporous activated carbon (pore size <2nm): adsorption of small molecules (formaldehyde, residual chlorine, etc.)

Mesoporous activated carbon (pore size 2-50nm): adsorption of large molecules (pigments, colloids, etc.)

Modified activated carbon: silver/sulfur loading, etc., to adjust the technical indicators of activated carbon for specific pollutants

3.Quick reference for industry selection

1. Food and beverage industry
   Core requirements: decolorization, deodorization, residue ≤0.5ppm
   Recommended type: food-grade coconut shell charcoal (in compliance with GB/T 12496.8 standard)
   Case: After a juice factory switched to high-iodine coconut shell charcoal, the decolorization efficiency increased by 70%
2. Pharmaceutical industry
   Core requirements: sterile, no dissolution, adsorption capacity ≥800mg/g
   Recommended type: pharmaceutical-grade columnar charcoal (heavy metal ≤0.01ppm)
   Avoid pits: prohibit the use of industrial regenerated charcoal to prevent cross contamination
3. Chemical industry
   Core requirements: high temperature resistance, compressive strength ≥90%
   Recommended type: coal-based briquette charcoal (ash content ≤5%, excellent wear resistance)
   Pain point: ordinary charcoal is replaced once every 3 months, and the life of modified charcoal can be extended to 18 months