The importance of anthracite filter media containing mud Anthracite filter media is currently the best filter material. Anthracite filter widely used to adapt to a large area. Can be used for domestic drinking water and industrial production of water as well as a variety of pool-type ordinary fast filter. Double and triple filter, a variety of sewage filters, water purification machinery and chemical, metallurgy, thermoelectric, pharmaceutical, food production before and after the water treatment. Artificially classified anthracite filter media to reduce irrelevant minerals and reduce ash content. Anthracite filter media plays a role in the filtration process is good or bad, directly affect the quality of filtration, anthracite filter media must meet the following requirements: high mechanical strength, the rate of crushing and wear rate should not exceed 3% ( Percentage by mass). Chemical stability, non-toxic substances. In general acidic, alkaline, neutral water are not dissolved. Particle size with rationale, large specific surface area. The appearance of the product is spherical and angular, gloss is good, three times by mechanical vibration screening, grading in line with the relevant technical indicators. The uniformity factor (K60) is not more than 1.5 (Japanese standard), the non-uniformity coefficient (K80) is between 1.6 and 2.0, and the porosity is more than 50%. Particle size range less than the specified minimum particle diameter of not more than 5% by weight, greater than the specified maximum particle size of not more than 5%