BS and SDS were selected to modify the grey desert soil in Xinjiang according to different proportions,and eight kinds of modified soil samples were prepared.The adsorption performance of Cd2+ was tested under the same conditions with the original unmodified soil sample(CK)as the control,and the adsorption characteristics of Cd2+ in the grey desert soil were described through the Langmuir isotherm adsorption model,The results indicate that the modification of Xinjiang gray desert soil with a combination of amphoteric anionic surfactant system can significantly improve its adsorption performance for Cd2+.
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