The regeneration methods of activated carbon are classified

among which the microbial regeneration

oxidation regeneration in chemical methods and decomposition regeneration in physical methods

are introduced emphatically. Because the above three methods have good universality for efficient removal of various organic pollutants

they are suitable for regeneration of saturated coal-based granular activated carbon(CGAC). The advantages and disadvantages of relevant regeneration methods

as well as their improvements and development directions are also reviewed. According to the present condition of water treatment industry(the kinds of organic pollutants in water are various and the ozone-biological activated carbon(O3-BAC) technology is widely used)

the author points out that in future research on the CGAC's regeneration

innovation should be carried out by concerning the advantages of different regeneration methods

and the research work about saturated BAC regeneration should be emphasized. Moreover

the regeneration method should be systematically studied and evaluated by comparing the technical and economic parameters of thermal regeneration method which is widely used in the industry at present.