1. The bubbles generated in the electrocoagulation cell can interact with the suspended solids and particles in the wastewater to form larger lumps, which can be removed from the wastewater by gravity precipitation.
2. By properly adjusting the electrolytic conditions, sulfate in wastewater can be precipitated in the electric flocculation tank, and the precipitated sulfate can be combined with the generated flocculant to form larger particles, which is convenient for subsequent treatment and removal.