Is there a standard for choosing food grade activated carbon?
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Posted by Carrie Ge - Filed in Arts & Culture - 756 views
Activated carbon not only has the difference in material, but also can be divided into food grade and industrial grade in use. coconut shell granular activated carbon Food-grade activated carbon is divided into powdered activated carbon and granular activated carbon, and food-grade wooden activated carbon includes powder and granular.
Food grade wood activated carbon is generally produced through a high-temperature steam activation process, and is crushed and screened.
Food-grade activated carbon has the advantages of large specific surface area, strong adsorption force, high wear resistance, and fast filtration speed. It is mainly used in the fields of liquid phase adsorption and gas phase adsorption, as well as decolorization, adsorption, purification, filtration, carrier, deodorization, drying, preservation, recycling, purification and other purposes.
Food grade activated carbon
It is widely used in life, industry, liquid phase adsorption, water purification, environmental protection, gas phase adsorption, solvent recovery, especially suitable for power plants, petrochemical plants, food and beverages, sugar and alcohol, electronics, chemicals, drinking water, ships and industries In the water purification of wastewater, domestic sewage and other industries, it can effectively adsorb free chlorine, phenol, sulfur, oil, pesticide residues and other organic pollutants in the water.
Generally, the standard of food-grade wood activated carbon is 4-6% ash, iron salt: 0.02-0.05, and coal quality of 0.08-0.1 12-15%. powdered carbon These standards determine the price of these activated carbons. Therefore, food-grade activated carbon is standard.