Metal plating is a popular form in the plating industry because most metal products require a protective surface, aesthetics, and quality for the product. The main source of plating wastewater is from the production stages of factories and factories and the nature of the plating wastewater depends on the type of production, technological lines, ingredients, and product quality. Wastewater from production in factories is often divided into three categories:
On metal surfaces often grease adhesion due to the mechanical polishing and curing stages. To ensure the coating quality, before plating, the parts should be cleaned by chemical degreasing, solvents or electrochemical. Therefore, the amount of wastewater generated in this process is large, but the concentration of pollutants is small, mainly alkalis and acids.
The solution in the plating tank may leak, drop, or follow the seedling jigs and out parts. The plating tanks, after a period of operation, need to be cleaned, so they discharge dirt and sediment along the wastewater stream. Therefore, the amount of wastewater generated is not much, but pollutants are diverse, and the concentration of pollutants is high.
Rinsing is the last step in removing the chemical films, so that it does not stick on the parts after plating process is completed. This is to avoid undesirable reactions on the surface as well as to keep the parts free from chemicals. Rinsing is usually done in the tank and at least one rinse tank is used after each electroplating process. The chemical films on the surface will be diluted after several rinses, until the contaminants are removed to an acceptable level. A highly productive electroplating line has the potential to release significant amounts of chemicals from rinsing operations.
The wastewater from metal processing has the potential to cause serious environmental damage and the proper treatment of wastewater for reuse can help reduce water pollution as well as protect human health.
Turbevap is therefore an indispensable product in the subsequent plating wastewater treatment. During the filtration process, the concentrated pollutant residues will be deposited, at the same time, the pure water will evaporate and be distilled from the used plating wastewater. The extracted and condensed vapor can be reused again for production processes as clean water or be discharged without harming the environment.