Abstract: The anion-cation modified zeolite were prepared by incorporating both cationic surfactant bromide cetyltrimethylammonium and anionic surfactant sodium dodecyl sulfate to zeolite.Its structure was characterized by XRD and IR.The effects of removing methylene blue dye wastewater with the anion-cation modified zeolite were investigated.The results showed that under the condition of pH = 8﹑normal temperature﹑absorption time 100 min and dosage of anion-cation modified zeolite 20 g/L,the removal rate ...