Bleaching earth, also known as activated white clay has strong adsorption capacity,low rate of oil,high acitvation,easy sedimentation and filtration,low acid branches,low return of acid rate.The products are widely applied to the petroleum chemical industry,,grease chemical,animal and vegetable oil purification,and it can effectively remove the piaments in the edible vegetable oil,kanamycin,and peculiar smell.As a decoloring agent,it is also widely used in soap,plastic,resin,paint,detergent powder,food,brewing and other industry production.As an adsorbent,it is also widely used in the organic sulfur,aflatoxins and other harmful substances removal process.It also has good function in the aspect of radioactive wasted water treatment.