The adsorption rate, equilibrium adsorption capacity and removal efficiency of heptachlor on CA-T were higher than that of heptachlor epoxide, which might be attributed to the stronger hydrophobicity of heptachlor.

• 该复合吸附剂对亲脂性较强的七氯具有较快的初始吸附速率、较大的平衡吸附量和较高的去除率.