Fine Dust Agglomeration in DC-Electric Field

Abstract

 Conventional filters such as fabric filters show relatively low collection efficiency for the submicron particles. Electrostatic agglomeration could be one of the promising methods as a pretreatment of fine dust. In this work, the characteristics of electrostatic agglomeration of fine aerosol particles were closely investigated. A DC electric field was applied to induce the agglomeration of bipolarly charged particles. At the higher voltage in a Corona charging, the effect of DC electric field in the agglomeration zone was found more significantly. The length of agglomeration zone also affects the particle growth, so that the peer optimization on the dust flow channel should be followed based on dust characteristics.