A new absorbent,activated carbon fiber,has been used to treat nitro group wastewater discharged from the chloramphenicol production in the pharmaceutical factory for the first time. The parameters of equilibrium adsorption quantity,dynamic breakthrough characteristics,adsorption effect factors and the regeneration character in the process of the treatment are systematically described. The results indicates that the adsorption capacity is large,the adsorption rate is fast,and the regeneration character is e...