Particulate diffusion charge thickening method

A particulate diffusion charge thickening method belongs to the technical field of environmental engineering and the like. The method provided by the invention is characterized in that primary particulates of PM0.1 and unipolar ions are injected together in a high-frequency high-voltage alternating electric field; the unipolar ions perform reciprocating motions up and down in the high-frequency high-voltage alternating electric field for 103-104 times; and each particulate of PM0.1 and the unipolar ions undergo collision charge thickening for tens of thousands even hundreds of thousands so as to further increase the particle size by 10-103 times and agglomerate to form primary particulates with the particle size being greater than 2 microns. Effects and advantages of the method provided by the invention are as follows: an effective method is provided to remove the atmospheric pollutant primary particulates of PM0.1; the method also can be used in ultramicro-sized coal dust dispersion charge electrocoagulation