Fig. 4: Common structures of electrostatic fog collectors (Reproduced with permission from refs. 31,46,125).
From: Sustainable solutions for water scarcity: a review of electrostatic fog harvesting technology

The pattern discharge methods of EFCs are usually divided into DBD type and CD type. DBD-EFCs (Electrostatic fog collector based on dielectric barrier discharge) are generally composed of a charging device and a collector. The charging device charges the droplets, and the collector forms an electric field to capture the charged droplets. CD-EFCs (Electrostatic fog collectors based on corona discharge) are generally composed of discharge electrodes and collection electrodes. The discharge electrode is generally a sharp electrode, such as wire, needle electrode, etc; collect electrodes as blunt electrodes, such as plates, meshes, harps, etc.