Treatment of Printed Circuit Board Waste Liquid and Copper Recovery

Abstract With the popularity of electronic products, the demand for printed circuit boards is increasing sharply. However, there will be a large number of waste liquids in producing printed circuit boards, and these waste liquids will not only cause environmental pollution if directly discharged, but also waste many resources cause since the waste liquid contain a large number of recyclables. Therefore, DC electrolysis is employed to treat the waste liquid and to recover the copper ions in the waste liquid by separating them from the original liquid, so that the edients in the waste liquid will not be destroyed, making the content of the ingredients in the waste liquid will be reorganized and recycled and achieving zero emission of pollutants and recover the copperions.