1. The effect of the composition of the solution on the environment. The composition of the solution includes the concentration of the solution and the composition of the solution. It is useful to reduce the concentration of the solution from the viewpoint of reducing the amount of the source. The decrease in the concentration of the solution reduces the amount of carry-over even if the manufacturing cost is lowered. The dedication to environmental protection is mainly to reduce the amount of the solution to reduce the concentration of the solution, but the decrease in the concentration of the solution is necessary to adapt to the practice of production, because too low concentration will affect the normal use, or the processing time extends The formation power is reduced; the solution concentration is too low, the solution changes rapidly during the application process, and the frequency of adjustment is added, which gives great inconvenience to the production, and the frequent analysis also increases the amount of sewage produced.

2. The difficulty of handling these chemical components and the cost of processing. Although environmental protection is the primary task, but the benefits derived from the company's intentions, if the chemical composition of a formula is too high, regardless of its effect, it is obviously not suitable.

3. Control during production. The handling during the production process is mainly reflected in the recovery of the solution, not the direct discharge. The specific method is to add a retracting cylinder in the vicinity of the working cylinder, and then carry out subsequent processing such as water washing.

4. Treatment of the washing machine waste liquid. The necessary wastewater treatment equipment in metal etching processing is necessary and cannot damage the environment for its own benefit. If there is a perfect treatment for the waste liquid produced by the chemicals used in the newly added process, if the existing wastewater treatment equipment cannot handle it, it is necessary to add corresponding treatment equipment to ensure the discharge from the metal etching production line. Waste water should be discharged.