1. Electroplating wastewater
Electroplating wastewater include the pretreatment rinsing wastewater, plating rinsing wastewater. And the principal pollutants are heavy metal ion .
1.1 Up-to-standard discharge technology
The emission of waste water which contains heavy metal ions such as Cr, Cu and Ni must meet the local requirements by adopting the means of "Physical and Chemical Reaction + Sequencing Batch Precipitation + Ion Exchange + Compulsory Filtration" to reach the standard.
