The company's self-developed online recycling system for phosphorus recovery, acid-base etching solution, micro-etching solution, nitric acid stripping solution, tin stripping water, etc. and widely used in the surface treatment industry (PCB, anodizing) in the recycling of waste liquids in each process , The closed loop of the online circulation system does not discharge any waste liquid, which improves the process capability and product quality for customers and reduces production costs. At the same time, it eliminates the hazardous waste liquids of the various processes of the enterprise in the production process, achieving online treatment to achieve emission reduction and waste reduction The goal has changed the pollution situation of the enterprise.