Activated carbon products for deep purification of drinking water (also called biological activated carbon), especially suitable for drinking water purification activated carbon in water plants using ozone-biological activated carbon technology, meet GB/T7701.2-2008 and CJ 345-2010T standards, and Possess the relevant qualifications such as the “Sanitation License Approval Document”.

The product not only has high adsorption capacity, but also takes into account the growth and development of microorganisms. The transition pore of the product has a greater development than the ordinary product, and the surface functional groups of the activated carbon are changed, making the activated carbon a new type of high-efficiency adsorbent that integrates various functions. Oxygen dissolved in water, and has the function of cultivating beneficial microorganism carriers such as nitrifying bacteria. At present, the product has been successfully used in Beijing, Shanghai, Guangzhou, Shenzhen and other places for the production of high-quality direct drinking tap water, and has achieved great success in application, providing necessary support for the completion of major water supply security work.

The characteristics of this product are mainly manifested in the following aspects: (1) The selection of anthracite as the main raw material reduces the water-soluble and ash content of the finished product and reduces the possibility of secondary pollution to the tap water. (2) The transition pore ratio of the product is adjusted by coal blending, which is easier to absorb organic pollutants with larger molecules than conventional anthracite activated carbon products, thus making it easier for microorganisms to thrive. (3) Pay attention to the control of the carbonization process in the processing technology to prevent the generation of invalid pores in the product, thereby reducing the floating rate of the product and reducing the waste in the backwashing process. (4) Homogenize the selected raw coal through the grinding process, destroy the lattice structure of the coal, realize isotropy, make the product performance more uniform and homogeneous, and enhance the strength of the product. The product has a uniform pore structure, relatively few ineffective pores, and a low flotation rate. The regeneration yield is high.