Electroplating equipment Treatment process of

Chemical method is one of the widely used treatment methods in electroplating wastewater treatment. It is mainly to add some drugs that can react with pollutants in sewage, and use drugs to change the chemical properties of pollutants, so that toxic and harmful pollutants can be precipitated or transformed into non-toxic and harmless substances.

Chemical method mainly includes chemical precipitation method and oxidation method Electroplating wastewater treatment equipment It is relatively simple, generally carried out in the reaction tower and reaction tank, and equipped with a dosing device. This treatment has the characteristics of low cost, simple operation and stable effect.

Electroplating equipment can be divided into four different processes

1. Electroosmosis: Under the action of electric field, the solid phase will not change, but the liquid phase will move. The role of electroosmosis will gradually drain the moisture of the paint film out of the coating, and eventually lead to the phenomenon that the current cannot pass. Therefore, the overall water content is still relatively low, but the resistance is relatively high.

2. Electrophoresis: under the action of a DC electric field, the charged colloid of positive and negative particles moves in the negative and positive directions, so it can also be called swimming.

3. Electrolysis: different oxidation and recovery reactions are carried out on the electrode, but the difference between recovery and oxidation is formed on the electrode.

4. Electrodeposition: due to the effect of electrophoresis, charged colloidal particles moving near the anode will emit electrons on the surface of the template, but will show differences between insoluble deposition and precipitation. At this time, a paint film will be formed.