Emission reduction type electroplating cleaning method

Abstract

The invention discloses an emission reduction type electroplating cleaning method, and the method comprises the following steps that S1, a machined part is cleaned, and electroplating liquid is generated; S2, a plating solution is collected, and the plating solution is not discharged to a subsequent plating tank; S3, the plating solution is conveyed into a plating tank in the front and stands still for a period of time; S4, secondary utilization is conducted in the plating tank in the S3 by means of chromium-containing components in the plating solution; and S5, the steps from S1 to S4 are repeated for multiple times until the chromium-containing components in the plating solution are completely consumed. According to the method, the discharge amount of the chromium-containing wastewater of the unit is reduced, the treatment cost of the chromium-containing wastewater is reduced, and the utilization rate of the chromium plating solution is increased, so that the purposes of economic emission reduction and effective resource utilization are achieved.

Description

technical field [0001] The invention relates to an emission-reducing electroplating cleaning method. Background technique [0002] Electroplating is the process of plating a thin layer of other metals or alloys on the surface of certain metals using the principle of electrolysis. It is a process of using electrolysis to attach a layer of metal film to the surface of metal or other material parts to prevent metal oxidation ( Such as rust), improve wear resistance, electrical conductivity, reflective properties, corrosion resistance (copper sulfate, etc.) and enhance the appearance. However, in the prior art, there will be a large amount of pollutants in the electroplating solution (such as chromium-containing electroplating solution) after use. On the one hand, it increases the difficulty of disposal of the waste solution, and on the other hand, it will affect the environment. Contents of the invention [0003] The object of the present invention is to provide an emission-...

AI Technical Summary

Problems solved by technology

However, in the prior art, there will be a large amount of pollutants in the electroplating solution (such as chromium-containing electroplating solution) after use. On the one hand, it increases the difficulty of processing the waste solution, and on the other hand, it will have an impact on the environment.