Abstract: The intercalation compound organic bentonite is prepared with sodium bentonite, modified with different surfactants, intercalated with caprolactam. The decolor effects to dye waste water is analyzed by spectrophotography. The factors of adsorption are discussed, including activation temperature, pH of waste water, mixture ratio of surfactants and intercalators, surging time and so on. The result indicated that the adsorption factor is 96.5% to methyl orange and 91.5% to practical waste water under condition...