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  • What is Zhulin carbon?
  • The Best Choices for Your Project. Zhulin carbon manufactures a wide range of coal-based activated carbon products in a variety of sizes and shapes, including granular, powdered and extruded activated carbon. Our coal activated carbon is subject to strict quality control from the selection of raw materials to the finished product.
  • What is a good iodine number for water treatment?
  • The degree of activation is measured by its carbon tetrachloride number (CTC). A value of 50 or more is considered good for water treatment. And (2) the relative surface area of the carbon measured by Iodine Number (Io N) which for potable water treatment should be in the range of 900-1050.
  • What is coal Activated carbon used for?
  • Our coal activated carbon is subject to strict quality control from the selection of raw materials to the finished product. Used in water purification and waste water treatment, as well as in gas and air filtration. Mesh Size: 4×8/ 4×12/ 8×16/ 6×12/ 6×16/ 8×16/ 8×30/ 12×40/ 20×60/ 30×70 (More size on request)
  • When was granular activated carbon used for water purification?
  • The use of granular activated carbon (GAC) for water purification became common around the start of the 20th century (1906) when the “activation” process was applied to charcoal (which had been used for centuries).