What should I do if there is a lot of foam after electroplating wastewater treatment?

Adding defoamer can remove foam, which has little effect on water quality within a reasonable range of use. Defoamer is harmless to human body in normal use, so it should be diluted before being added. Generally, after being diluted by 10 times, it should be added by spraying, and the dosage should be just enough to eliminate foam. If you still don't understand, you can go to environmental protection to ask questions and exchange ideas.